Refining molluscan characters: Morphology, character coding and a phylogeny of the Caenogastropoda

Zoological Journal of the Linnean Society

Volumn 137, Issue 4, 2003, Pages 447-554

  Strong, Ellen E ^a,b  

^a GEORGE WASHINGTON UNIVERSITY   (United States)

^b UNIVERSITY OF MINNESOTA   (United States)

Author keywords

Anatomy; Cladistics; Feeding; Foregut; Gastropods; Homology; Kidney; Midgut; Nerves; Reproduction

Indexed keywords

ARCHITAENIOGLOSSA; CAENOGASTROPODA; CONUS JASPIDEUS; CREPIDULA; CYCLOPHOROIDEA; CYPRAEA; GASTROPODA; ILYANASSA; LITTORINA; MARISA; MOLLUSCA; NEOCYCLOTUS; NEOGASTROPODA; NEVERITA; NITIDISCALA; PETALOCONCHUS; PRUNUM; PRUNUM APICINUM; PTENOGLOSSA; SORBEOCONCHA; STROMBUS; THEODOXUS; UROSALPINX;

EID: 0037800412     PISSN: 00244082     EISSN: None     Source Type: Journal    
DOI: 10.1046/j.1096-3642.2003.00058.x     Document Type: Article

References (320)

1. Abbott RT. 1967. Venom apparatus and geographical distribution of Conus gloriamaris. Notulae Naturae 400: 1-8.
2. Alexander CG. 1970. The osphradium of Conus flavidus. Marine Biology (Berlin) 6: 236-240.
3. Alexander CG. 1973. The neuroanatomy of the osphradium in Conus flavidus Lamarck. The Veliger 16: 68-71.
4. Alexander CG, Weldon MW. 1975. The fine structure of the osphradial leaflets in Conus flavidus. Marine Biology (Berlin) 33: 247-254.
5. Alpers F. 1931. Zur Kenntnis des Anatomie von Conus lividus Brug. Besonders des Darmkanals. Jenaische Zeitschrift für Naturwissenschaft 65: 587-657.
6. Amaudrut A. 1898. La partie antérieure du tube digestif et la torsion chez les Mollusques Gastéropodes. Annales des Sciences naturelles, Zoologie 8: 1-291.
7. Andrews EA. 1937. Certain reproductive organs in the Neritidae. Journal of Morphology 61: 525-561.
8. Andrews EB. 1964. The functional anatomy and histology of the reproductive system of some pilid gastropod molluscs. Proceedings of the Malacological Society of London 36: 121-140.
9. Andrews EB. 1965a. The functional anatomy of the gut of the prosobranch gastropod Pomacea canaliculata and of some other pilids. Proceedings of the Zoological Society of London 145: 19-36.
10. Andrews EB. 1965b. The functional anatomy of the mantle cavity, kidney and blood system of some pilid gastropods (Prosobranchia). Journal of Zoology 146: 70-94.
11. Andrews EB. 1991. The fine structure and function of the salivary glands of Nucella lapillus (Gastropoda: Muricidae). Journal of Molluscan Studies 57: 111-126.
12. Andrews EB. 1992. The fine structure and function of the anal gland of the muricid Nucella lapillus (Neogastropoda) (and a comparison with that of the trochid Gibbula cineraria). Journal of Molluscan Studies 58: 297-313.
13. Andrews EB, Little C. 1972. Structure and function in the excretory systems of some terrestrial prosobranch snails (Cyclophoridae). Journal of Zoology 168: 395-422.
14. Ankel WE. 1930. Die atypicsche Spermatogenese von Janthina (Prosobranchia, Ptenoglossa). Zeitschrift für Zellforschung und Mikroskopische Anatomie 11: 491-608.
15. Ankel WE. 1936. Prosobranchia. In: Grimpe G, Wagler K, eds. Die Tierwelt der Nord- und Ostsee. Leipzig: Akademische Verlagsgesellschaft, 1-240.
16. Ankel WE. 1937. Wie frisst Littorina? Senckenbergiana 19: 317-333.
17. Ankel WE. 1949. Die Nahrungs aufnahme der Pyramidelliden. Verhandlungen der Deutschen Zoologen, 1948, in Kiel. Zoologische Anzeigersupplement 13: 478-484.
18. Annandale N, Sewell RBS. 1921. The banded pond-snail of India (Vivipara bengalensis). Records of the Indian Museum 22: 215-292.
19. Ball AD, Taylor JD, Andrews EB. 1997. Development of the ascinous and accessory salivary glands in Nucella lapillus (Neogastropoda: Muricoidea). Journal of Molluscan Studies 63: 245-260.
20. Barnard KH. 1957. The radula of Cancellaria. Journal of Conchology 24: 243-244.
21. Beliakova-Butenko I. 1974. A contribution to the morphology of Bithynia caerulane (Gastropoda). Institute of Zoology, Academy of Sciences of the Kazakh SER (Alma-Ata). Translated from Russian by Geti Saad.
22. Bergh R. 1895a. Beiträge zur Kentniss der Strombiden, besonders der Gattung Terebellum Klein. Zoologische Jahrbücher (Anatomie) 8: 342-378.
23. Bergh R. 1895b. Beiträge zur Kentniss der Coniden. Nova Acta der Kaiserliche Leopoldina-Carolinae Deutschen Akademie Naturforscher 65: 69-214.
24. Berkeley C. 1935. The chemical composition of the crystalline style and of the gastric shield: with some new observations on the occurrence of the style oxidase. Biological Bulletin 68: 107-114.
25. Bernard FR, Bagshaw JW. 1969. Histology and fine structure of the accessory boring organ of Polynices lewissi (Gastropoda, Prosobranchiata). Journal of the Fisheries Research Board of Canada 26: 1451-1457.
26. Berry AJ. 1964. The reproduction of the minute cyclophorid snail Opisthosoma (Plectosoma) retrovertens from a Malayan limestone hill. Proceedings of the Zoological Society of London 142: 655-663.
27. Berry AJ, Lim R, Sasekumar A. 1973. Reproductive systems and breeding condition in Nerita birmanica (Archaeogastropoda: Neritacea) from Malayan mangrove swamps. Journal of Zoology 170: 189-200.
28. Berthold T. 1991. Vergleichende Anatomie, Phylogenie und Historische Biogeographie der Ampullariidae (Mollusca, Gastropoda). Abhandlungen den Naturwissenschaftlichen Vereins in Hamburg 29: 1-256.
29. Bieler R. 1992. Gastropod phylogeny and systematics. Annual Reviews in Ecology and Systematics 23: 311-338.
30. Bieler R. 1993. Ampullariid phylogeny - Book review and cladistic reanalysis. The Veliger 36: 291-299.
31. Bieler R, Mikkelsen PM. 1988. Anatomy and reproductive biology of two western Atlantic species of Vitrinellidae, with a case of protandrous hermaphroditism in the Rissoacea. The Nautilus 102: 1-29.
32. Binder E. 1959. Anatomie et systématique des Mélaniens d'Afrique occidentale (Moll. Gastropoda). Kevue Suisse de Zoologie 66: 735-759.
33. Bingham FO. 1972. Several aspects of the reproductive biology of Littorina irrorata. The Nautilus 86: 8-10.
34. Bouchet P, Warén A. 1986. Revision of the northeast Atlantic bathyal and abyssal Aclididae, Eulimidae, and Epitoniidae (Mollusca, Gastropoda). Bollettino Malacologico, Supplemento 2: 300-561.
35. Bourne GC. 1908. Contributions to the morphology of the group Neritacea of aspidobranch gastropods. Part 1. The Neritidae. Proceedings of the Zoological Society of London 1908: 810-887.
36. Bouvier E-L. 1886. Contributions à l'étude des prosobranches ptenoglosses. Bulletins de la Société Malacologique de France 3: 77-130.
37. Bouvier E-L. 1887. Système nerveux, morphologie générale et classification des gastéropodes prosobranches. Académie de Paris.
38. Bouvier E-L. 1888. Étude sur l'organisation de l'Ampullaria. Centennaire de la Société Philomatique, 63-85.
39. Bouvier E-L. 1892. Le système nerveux des Neritides. Comptes Rendus des Sciences, Paris 114: 1281-1283.
40. Bregenzer A. 1916. Anatomie und Histologie von Bythinella dunkeri. Zoologische Jahrbücher 39: 237-292.
41. Breyer A. 1980. Life history of Epithonium tinctum (Prosobranchia: Mesogastropoda). Western Society of Malacologists Annual Report 12: 9.
42. Brock F. 1936. Suche, Aufnahme und enzymatische Spaltung der Nahrung durch die Wellhornschnecke Buccinum undatum L. Zoologica (Stuttgart) 34: 1-136.
43. Brown SC. 1969. The structure and function of the digestive system of the mud snail Nassarius obsoletus (Say). Malacologia 9: 447-500.
44. Brown AC. 1982. The biology of sandy-beach whelks of the genus Bullia (Nassariidae). Oceanography and Marine Biology: an Annual Review 20: 309-361.
45. Bulnheim H-P. 1968. Atypische Spermatozoenbildung bei Epitonium tinctum; ein Beitrag zum Problem des Spermatozoendimorphismus der Prosobranchia. Helgoländer Wissenschaftliche Meeresuntersuchungen 18: 232-253
46. Carpenter PP. 1856. First steps towards a monograph of the Recent species of Petaloconchus, a genus of Vermetidae. Proceedings of the Zoological Society of London 24: 313-317.
47. Carpenter JM, Wheeler WC. 1999. Towards simultaneous analysis of morphological and molecular data in Hymenoptera. Zoologica Scripta 28: 251-260.
48. Carriker MR. 1943. On the structure and function of the proboscis in the common oyster drill, Urosalpinx cinerea Say. Journal of Morphology 73: 441-506.
49. Carriker MR. 1981. Shell penetration and feeding by Naticacean and Muricacean predatory gastropods: a synthesis. Malacologia 20: 403-422.
50. Clench WJ, Turner RD. 1950. The genera Sthenorytis, Cirostrema, Acirsa, Opalia and Amaea in the Western Atlantic. Johnsonia 2: 221-246.
51. Colgan DJ, Ponder WF, Eggler PE. 2000. Gastropod evolutionary rates and phylogenetic relationships assessed using partial 28S rDNA and histone H3 sequences. Zoologica Scripta 29: 29-63.
52. Coovert GA. 1987. A literature review and summary of marginellid external anatomy. Marginella Marginalia 3: 8-25.
53. Coovert GA, Coovert HK. 1990. A study of marginellid radulae. Marginella Marginalia 8-9: 1-68.
54. Coovert GA, Coovert HK. 1995. Revision of the supraspecific classification of marginelliform gastropods. The Nautilus 109:43-110.
55. Coupin H. 1900. Sur les fonctions de la tige cristalline des Acephales. Comptes Rendus, Academic des Sciences (Paris) 130: 1214-1216.
56. Cox LR. 1960. Thoughts on the classification of the Gastropoda. Proceedings of the Malacological Society of London 33: 239-261.
57. Curtis LA. 1980. Daily cycling of the crystalline style in the omnivorous, deposit-feeding estuarine snail Ilyanassa obsoleta. International Journal on Life in Oceans and Coastal Waters 59: 137-140.
58. Curtis LA, Hurd LE. 1981. Crystalline style cycling in Ilyanassa obsoleta (Say). The Veliger 24: 91-96.
59. Davis GM. 1980. Snail hosts of asian Schistosoma infecting man: evolution and coevolution. Malacological Review Supplement 2: 195-238.
60. Davis GM, Mazurkiewicz M. 1985. Systematics of Cincinnatia winkleyi (Gastropoda: Hydrobiidae). Proceedings of the Academy of Natural Sciences of Philadelphia 137: 28-47.
61. Davis GM, Mazurkiewicz M, Mandracchia M. 1982. Spurwinkia: Morphology, systematics, and ecology of a new genus of North American marshland Hydrobiidac (Mollusca: Gastropoda). Proceedings of the Academy of Natural Sciences of Philadelphia 134: 143-177.
62. Davis GM, Pons da Silva MC. 1984. Potamolithus: morphology, convergence and relationships among hydrobicid snails. Malacologia 25: 73-108.
63. Demian ES. 1964. The anatomy of the alimentary system of Marisa cornuarietis (L.). Meddelanden fran Göteborgs Kungliga. Vetenskaps Och Vitterhets-Samhalles Handlingar. Sjätte Följden B 9: 4-75.
64. Demian ES, Yousif F. 1973a. Embryonic development and organogenesis in the snail Marisa cornuarietis (Mesogastropoda: Ampullariidae). II. Development of the alimentary system. Malacologia 12: 151-174.
65. Demian ES, Yousif F. 1973b. Embryonic development and organogenesis in the snail Marisa cornuarietis (Mesogastropoda: Ampullariidae). III. Development of the circulatory and renal systems. Malacologia 12: 175-194.
66. Demian ES, Yousif F. 1973c. Embryonic development and organogenesis in the snail Marisa cornuarietis (Mesogastropoda: Ampullariidae). IV. Development of the shell gland, mantle and respiratory organs. Malacologia 12: 195-211.
67. Demian ES, Yousif F. 1975. Embryonic development and organogenesis in the snail Marisa cornuarietis (Mesogastropoda: Ampullariidae). V. Development of the nervous system. Malacologia 15: 29-42.
68. Dimon AC. 1905. The mud snail: Nassa obsoleta. Cold Spring Harbor Monographs 5: 1-48.
69. Driscoll AL. 1972. Structure and function of the alimentary tract of Batillaria zonalis and Cerithidea californica, style-bearing mesogastropods. The Veliger 14: 375-386.
70. Duda TF, Kohn AF, Palumbi SR. 2001. Origins of diverse feeding ecologies within Conus, a genus of venomous marine gastropods. Biological Journal of the Linnean Society 73: 391-409.
71. Eales NB. 1923. Mollusca, Part 5, Anatomy of Gastropoda (except the Nudibranchia). British Antarctic ('Terra Nova') Expedition, 1910. Journal of Zoology 7: 1-46.
72. Estabrooks WA, Kay EA, McCarthy SA. 1999. Structure of the excretory system of Hawaiian nerites (Gastropoda: Neritoidea). Journal of Molluscan Studies 65: 61-72.
73. Farris JS. 1988. HENNIG86: a PC-DOS program for phylogenetic systematics. Program published by the author. Port Jefferson, New York.
74. Fretter V. 1941. The genital ducts of some British stenoglossan prosobranchs. Journal of the Marine Biological Association (United Kingdom) 25: 173-211.
75. Fretter V. 1946. The genital ducts of Theodoxus, Lamellaria and Trivia, and a discussion on their evolution in the prosobranchs. Journal of the Marine Biological Association (United Kingdom) 26: 312-351.
76. Fretter V. 1951. Some observations on the British cypraeids. Proceedings of the Malacological Society of London 29: 14-20.
77. Fretter V. 1965. Functional studies of the anatomy of some neritid prosobranchs. Journal of Zoology 147: 46-74.
78. Fretter V. 1976. The anatomy and feeding of the volutacean prosobranch Volvarina taeniolata Mörch. Journal of Molluscan Studies 42: 327-336.
79. Fretter V, Graham A. 1962. British prosobranch molluscs; their functional anatomy and ecology. London: Ray Society.
80. Fretter V, Graham A. 1982. The prosobranch molluscs of Britain and Denmark. Part 7 - 'Heterogastropoda' (Cerithiopsacea, Triforacea, Epitonacea, Eulimacea). Journal of Molluscan Studies Supplement 11: 363-434.
81. Fretter V, Graham A, McLean JH. 1981. The anatomy of the Galapagos Rift Limpet, Neomphalus fretterae. Malacologia 21: 337-361.
82. Giese M. 1915. Der Genital apparat von Calyptraea sinensis Linn. Crepidula unguiformis Lam. und Capulus hungaricus Lam. Zeitschrift für Wissenschaftliche Zoologie 114: 169-231.
83. Gilson G. 1896. The female organs of Neritina fluviatilis. Proceedings of the Malacological Society of London 2: 81-83.
84. Golikov AN, Starobogatov YI. 1975. Systematics of prosobranch gastropods. Malacologia 15: 185-232.
85. Goloboff P. 1993. NONA. Noname, Version 1.6. Program and documentation. Computer program distributed by J.M. Carpenter. New York: Department of Entomology, American Museum of Natural History.
86. Gosliner TM, Ghiselin MT. 1984. Parallel evolution in opisthobranch gastropods and its implications for phylogenetic methodology. Systematic Zoology 33: 255-274.
87. Gould HN. 1917. Studies on sex in the hermaphrodite mollusc Crepidula plana. I. History of the sexual cycle. Journal of Experimental Zoology 23: 1-69.
88. Gould HN. 1949. Growth and sex development in the slipper limpet Crepidula plana. Bios 20: 173-176.
89. Gould HN. 1952. Studies on sex in the hermaphrodite mollusk Crepidula plana. IV. Internal and external factors influencing growth and sex development. Journal of Experimental Zoology 119: 93-164.
90. Graham A. 1938. On a ciliary process of food-collecting in the gastropod Turritella communis Risso. Proceedings of the Zoological Society of London 108: 453-463.
91. Graham A. 1939. On the structure of the alimentary canal of style-bearing prosobranchs. Proceedings of the Zoological Society of London 109: 75-112.
92. Graham A. 1941. The oesophagus of the stenoglossan prosobranchs. Proceedings of the Royal Society of Edinburgh 61: 1-23.
93. Graham A. 1949. The molluscan midgut. Transactions of the Royal Society of Edinburgh 61: 737-778.
94. Graham A. 1952. The anatomy of the prosobranch Trichotropis borealis Broderip & Sowerby, and the systematic position of the Capulidae. Journal of the Marine Biological Association (United Kingdom) 33: 129-144.
95. Graham A. 1954. Some observations on the reproductive tract of Ianthina janthina. Proceedings of the Malacological Society of London 31: 1-6.
96. Graham A. 1955. Molluscan diets. Proceedings of the Malacological Society of London 31: 144-159.
97. Graham A. 1965. The buccal mass of ianthinid prosobranchs. Proceedings of the Malacological Society of London 36: 323-338.
98. Graham A. 1966. The fore-gut of some marginellid and cancellariid prosobranchs. In: The R/V Pillsbury Deep-Sea Biological Expedition to the Gulf of Guinea, 1964-65. Part 8. Studies in Tropical Oceanography (Miami) 4: 134-151.
99. Graham A. 1985. Evolution within the Gastropoda: Prosobranchia. In: Trueman ER, Clarke MR, eds. The Mollusca, 10: Evolution. London: Academic Press, 151-186.
100. Greene JL, Kohn AJ. 1989. Functional morphology of the Conus proboscis (Mollusca: Gastropoda). Journal of Zoology 219: 487-493.
101. Hadfield MG. 1970. Observations on the anatomy and biology of two California vermetid gastropods. The Veliger 12: 301-309.
102. Hägler K. 1963. Anatomie von Pachylabra (Ampullaria) cinerea Reeve. Part 1. Acta Zoologica 4: 313-410.
103. Haller B. 1882. Zur Kenntnis der Muriciden. I. Anatomie des Nervensystemes. Denkschriften der Kaiserlichen Akademie der Wissenschaften 45: 87-106.
104. Haller B. 1888. Die Morphologie der Prosobranchier, gesammelt auf einer Erdumsegelung durch die Königl. italienische Korvette 'Vettor Pisani'. I. Morphologisches Jahrbuch 14: 54-169.
105. Haller B. 1890. Die Morphologie der Prosobranchier, gesammelt auf einer Erdumsegelung durch die Königl. italienische Korvette 'Vettor Pisani'. II. Cypraea testudinara L. Morphologisches Jahrbuch 17: 259-299.
106. Haller B. 1893. Die Morphologie der Prosobranchier, gesammelt auf einer Erdumsegelung durch die Königl. italienische Korvette 'Vettor Pisani'. IV. Die longicommissuraten Neotaenioglossen. Morphologisches Jahrbuch 19: 553-591.
107. Haller B. 1894. Studien über Docoglosse und Rhipidoglosse Prosobranchier. Leipzig: Engelmann.
108. Harasewych MG, Adamkewicz SL, Blake JA, Saudek D, Spriggs T, Bult CJ. 1997a. Phylogeny and relationships of pleurotomariid gastropods (Mollusca: Gastropoda): an assessment based on partial 18S rDNA and cytochrome c oxidase I sequences. Molecular Marine Biology and Biotechnology 6: 1-20.
109. Harasewych MG, Adamkewicz SL, Blake JA, Saudek D, Spriggs T, Bult CJ. 1997b. Neogastropod Phylogeny: a Molecular Perspective. Journal of Molluscan Studies 63: 327-351.
110. Harasewych MG, Adamkewicz SL, Plassmeyer M, Gillevet PM. 1998. Phylogenetic relationships of the lower Caenogastropoda (Mollusca, Gastropoda, Architaenioglossa, Campanilioidea, Cerithioidea) as determined by partial 18S rDNA sequences. Zoologica Scripta 27: 361-372.
111. Harasewych MG, Kantor YI. 1991. Rediscovery of Marginellona gigas (Martens, 1904), with notes on the anatomy and systematic position of the subfamily Marginelloninae (Gastropoda: Marginellidae). Nemouria 37: 1-19.
112. Harasewych MG, Petit RE. 1982. Notes on the morphology of Cancellaria reticulata (Gastropoda: Cancellariidae). The Nautilus 96: 104-113.
113. Harasewych MG, Petit RE. 1984. Notes on the morphology of Olssonella smithii (Gastropoda: Cancellariidae). The Nautilus 98: 37-44.
114. Harasewych MG, Petit RE. 1986. Notes on the morphology of Admete viridula (Gastropoda: Cancellariidae). The Nautilus 100: 85-91.
115. Haszprunar G. 1985a. The fine morphology of the osphradial sense organs of the Mollusca. I. Gastropoda, Prosobranchia. Philosophical Transactions of the Royal Society of London. Series B 307: 457-496.
116. Haszprunar G. 1985b. The fine morphology of the osphradial sense organs of the Mollusca. II. Allogastropoda (Architectonicidae, Pyramidellidae). Philosophical Transactions of the Royal Society of London, Series B 307: 497-505.
117. Haszprunar G. 1985c. The Heterobranchia - a new concept of the phylogeny of the higher Gastropoda. Zeitschrift für Zoologische Systematik und Evolutionsforschung 23: 15-37.
118. Haszprunar G. 1987. Anatomy and affinities of cocculinid limpets. Zoologica Scripta 16: 305-324.
119. Haszprunar G. 1988a. On the origin and evolution of major gastropod groups, with special reference to the Streptoneura (Mollusca). Journal of Molluscan Studies 54: 367-441.
120. Haszprunar G. 1988b. A preliminary phylogenetic analysis of the streptoneurous gastropods. Malacological Review Supplement 4: 7-16.
121. Haszprunar G. 1988c. Comparative anatomy of cocculiniform gastropods and its bearing on archaeogastropod systematics. Malacological Review Supplement 4: 64-84.
122. Haszprunar G. 1998a. Superorder Cocculiniformia. In: Beesley PL, Ross GJB, Wells A, eds. Mollusca: The southern synthesis. Fauna of Australia. Vol. 5, Part B, 653-664.
123. Haszprunar G. 1998b. Parsimony analysis as a specific kind of homology estimation and the implications for character weighting. Molecular Phylogenetics and Evolution 9: 333-339.
124. Hawkins SJ, Watson DC, Hill AS, Harding SP, Kyriakides MA, Hutchinson S, Norton TA. 1989. A comparison of feeding mechanisms in microphagous, herbivorous, intertidal, prosobranchs in relation to resource partitioning. Journal of Molluscan Studies 55: 151-165.
125. Haynes A. 1991. The reproductive patterns of the five Fijian species of Septaria (Prosobranchia: Neritidae). Journal of Molluscan Studies 58: 13-20.
126. Healy JM. 1988. Sperm morphology and its systematic importance in the Gastropoda. Malacological Review Supplement 4: 251-266.
127. Healy JM. 1996. Molluscan sperm ultrastructure: correlation with taxonomic units within the Gastropoda, Cephalopoda, and Bivalvia. In: Taylor JD, ed. Origin and evolutionary radiation of the Mollusca. New York: Oxford University Press, 99-113.
128. deHeide A. 1686. Experimenta circa sanguinis missionem, fibras motrices, urticam marinam, etc. - Accedunt ejusdem aucforis observationes medicoe nec non anatome Mytuli. Editio Nova, Mersterdami: 35-36.
129. Hershler R. 1985. Systematic revision of the Hydrobiidae (Gastropoda: Rissoacea) of the Cuatro Cienegas Basin, Coahuila, Mexico. Malacologia 26: 31-123.
130. Hershler R, Davis GM. 1980. The morphology of Hydrobia truncata (Gastropoda: Hydrobiidae): relevance to systematics of Hydrobia. Biological Bulletin 158: 195-219.
131. Hershler R, Frest TJ. 1996. A review of the North American freshwater snail genus Fluminicola (Hydrobiidae). Smithsonian Contributions to Zoology 583: 1-41.
132. Hershler R, Thompson FG. 1988. Notes on morphology of Amnicola limosa (Say, 1817) (Gastropoda: Hydrobiidae) with comments on status of the subfamily Amnicolinae. Malacological Review 21: 81-92.
133. Hirsch GC. 1915. Die Ernährungsbiologie fleischfressender Gastropoden. Zoologische Jahrbücher, Abteilung für Allgemeine Zoologie und Physiologie 35: 357-404.
134. Houbrick RS. 1974. The genus Cerithium in the Western Atlantic. (Cerithiidae: Prosobranchia). Johnsonia 5: 33-84.
135. Houbrick RS. 1980. Observations on the anatomy and life history of Modulus modulus (Prosobranchia: Modulidae). Malacologia 29: 117-142.
136. Houbrick RS. 1987. Anatomy of Alahu and Litiopa (Prosobranchia: Litiopidae): systematic implications. The Nautilus 101: 9-18.
137. Houbrick RS. 1988. Cerithioidean phylogeny. Malacological Review Supplement 4: 88-128.
138. Houbrick RS. 1991a. Anatomy and systematic placement of Faunus Montfort 1810 (Prosobranchia: Melanopsinae). Malacological Review 24: 35-54.
139. Houbrick RS. 1991b. Systematic review and functional morphology of the mangrove snails Terebralia and Telescopium (Potamididae; Prosobranchia). Malacologia 33: 289-338.
140. Houbrick RS. 1993. Phylonenetic relationships and generic review of the Bittiinae (Prosobranchia: Cerithioidea). Malacologia 35: 261-313.
141. Houston RS. 1976. The structure and function of neogastropod reproductive systems: with special reference to Columbella fuscata Sowerby, 1832. The Veliger 19: 27-46.
142. Houston RS. 1990. Reproductive systems of neritimorph archaeogastropods from the Eastern Pacific, with special reference to Nerita funiculata Menke, 1851. The Veliger 33: 103-110.
143. Hughes RN. 1978. The biology of Dendropoma corallinaceum and Serpulorbis natalensis, two South African vermetid gastropods. Zoological Journal of the Linnnean Society 64: 111-127.
144. Humason GL. 1967. Animal tissue techniques. San Francisco: W.H. Freeman.
145. Ishiki H. 1939. Histological studies on the sexual organs during sex-changes of Crepidula aculeata C. walshi. Journal of Science of the Hirosima University 6: 103-113.
146. Jaeckel S. 1952. Über Vergiftungen durch Conus-Arten (Gastr. Pros.) mit einem Beitrag zur Morphologie und Physiologie ihres Giftapparates. Zoologischer Anzeiger 149: 206-216.
147. James MJ. 1980. Comparative morphology of radular teeth in Conus: observations with scanning electron microscopy. Journal of Molluscan Studies 46: 116-128.
148. Jenner CE. 1956. The occurrence of a crystalline style in the marine snail, Nassarius obsoletus. Biological Bulletin 111: 304.
149. Johansson J. 1939. Anatomische Studien über die Gastropodenfamilien Rissoidae und Littorinidae. Zoologiska Bidrag Fran Uppsala 18: 288-396.
150. Johansson J. 1941. Ein Beitrag zur Kenntnis des Kristallstielsackes der Mollusken und der Flimmerbewegung in demselben. Arkiv för Zoologi 33: 1-8.
151. Johansson J. 1957. Notes on the littorinacean and stenoglossan genital organs, and a comparison with the Rissoacea. Zoologiska Bidrag fran Uppsala 32: 81-91.
152. Jonges K. 1980. Genital ducts in several species of the cyclophorid genus Leptopoma (Mollusca, Mesogastropoda). Bijdragen tot de Dierkunde 50: 292-302.
153. Kantor YI. 1990. Anatomical basis for the origin and evolution of the toxoglossan mode of feeding. Malacologia 32: 3-18.
154. Kantor YI. 1996. Phyloneny and relationships of Neogastropoda. In: Taylor JD, ed. Origin and evolutionary radiation of the Mollusca. New York: Oxford University Press, 221-230.
155. Kantor YI, Medinskaya AI. 1991. Morphology and feeding of Mitrella burchardi (Gastropoda: Columbellidae). Asian Marine Biology 8: 25-33.
156. Kantor YI, Taylor JD. 1991. Evolution of the toxoglossan feeding mechanism: new information on the use of the radula. Journal of Molluscan Studies 57: 129-134.
157. Kasinathan R. 1975. Some studies of five cyclophorid snails from peninsular India. Proceedings of the Malacological Society of London 41: 379-394.
158. Kay EA. 1960. The functional morphology of Cypraea caputserpentis L. & an interpretation of the relationships among the Cypraeacea. International Revue der Gesamten Hydrobiologie 45: 175-196.
159. Keen AM. 1961. A proposed reclassification of the gastropod family Vermetidae. Bulletin of the British Museum (Natural History), Zoology 7: 187-213.
160. Keen AM, Morton JE. 1960. Some new African species of Dendropoma (Vermetida: Mesogastropoda). Proceedings of the Malacological Society of London 34: 36-51.
161. Kleinstüber H. 1913. Die Anatomie von Trochita, Calyptraea und Janacus. Ein Beitrag zur Kenntnis der Calyptraeiden. Zoologischen Jahrbüchern (Suppl. 13), Fauna Chilensis 4: 385-476.
162. Kohn AJ, Nishi M, Pernet B. 1999. Snail spears and scimitars: a character analysis of Conus radular teeth. Journal of Molluscan Studies 65: 461-481.
163. Kool SP. 1993. Phylogenetic analysis of the Rapaninae (Neogastropoda: Muricidae). Malacologia 35: 155-259.
164. Krull H. 1935. Anatomische Untersuchungen an einheimischen Prosobranchiern und Beiträge zur Phylogenie Gastropoden. Zoologische Jahrbücher 60: 399-464.
165. Lacaze-Duthiers FJH. 1860. Mémoire sur l'anatomie et l'embryogénie des vermets (Vermetus triqueter et V. semisurrectus Phil.). Annales des Sciences naturelles, Zoologie 13:209-296.
166. Landsburg B. 1882. Uber das Herz und die Niere von Nerfina fluviatilis. Zoologischer Anzeiger 1882: 661-664.
167. Leal JH, Harasewych MG. 1999. Deepest Atlantic molluscs: hadal limpets (Mollusca, Gastropoda, Cocculiniformia) from the northern boundary of the Caribbean Plate. Invertebrate Biology 118: 116-136.
168. Lenssen J. 1899. Systeme digestif et système génital de la Neritina fluviatilis. La Cellule 16: 179-232.
169. Lenssen J. 1902. Système nerveux, système circulatoire, système respiratoire et système excréteur de la Neritina fluviatilis. La Cellule 20: 289-332.
170. Lilly MM. 1953. The mode of life and the structure and functioning of the reproductive ducts Bithynia tentaculata (L.). Proceedings of the Malacological Society of London 30: 87-110.
171. Lindberg DR, Ponder WF. 1996. An evolutionary tree for the Mollusca: branches or roots?. In: Taylor JD, ed. Origin and evolutionary radiation of the Mollusca. New York: Oxford University Press, 67-75.
172. Linke O. 1933. Morphologie und Physiologie des Genitalapparates der Nordseelittorinen. Wissenschaftliche Meeresuntersuchungen 19: 2-60.
173. Little C. 1965. Notes on the anatomy of the Queen Conch, Strombus gigas. Bulletin of Marine Science 15: 338-358.
174. Lufty RG, Demian ES. 1967. The histology of the alimentary system of Marisa cornuarietis (Mesogastropoda: Ampullariidae). Malacologia 5: 375-422.
175. Mackintosh NA. 1925. The crystalline style in gastropods. Quarterly Journal of Microscopical Science 69: 317-342.
176. Maeda T. 1988. The structure of the osphradium of three sub-families in Naticidae with reference to their morphology and ecology. Venus: the Japanese Journal of Malacology 47: 121-126.
177. Maeda T. 1990. Further studies on the structure of the osphradium in three subfamilies of Naticidae with reference to their morphology and ecology. Venus: the Japanese Journal of Malacology 49: 45-53.
178. deMaintenon MJ. 1999. Phylogenetic analysis of the Columbellidae (Mollusca: Neogastropoda) and the evolution of herbivory from carnivory. Invertebrate Biology 118: 258-288.
179. Marcus E. 1956. On some prosobranchia from the coast of Saó Paulo. Boletim do Instituto Oceanografico, Universidade de Sao Paulo 7: 3-28.
180. Marcus E, Marcus E. 1959. Studies on 'Olividae. 'Boletim da Faculdade de Filosofia, Ciencias, e Letras. Universidade de Sao Paulo, Serie Zoologica 22: 99-188.
181. Marcus E, Marcus E. 1963. Mesogastropoden von der Küste Saó Paulos. Akademie der Wissenschaften und der Literatur, Mathematisch-Naturwissenschaftliche Klasse 1963 (1): 5-105.
182. Marcus E, Mareus E. 1964. On Cerithium atratum (Born, 1778) (Gastropoda: Prosobranchia). Bulletin of Marine Science of the Gulf and Caribbean 14: 494-510.
183. Marcus E, Marcus E. 1965. On Haliotinella patinaria (Gastropoda: Naticidae). Bulletin of Marine Science 15: 211-215.
184. Marcus E, Marcus E. 1968. On the prosobranchs Ancilla dimidiata and Marginella fraterculus. Proceedings of the Malacological Society of London 38: 55-69.
185. Marsh H. 1971. The foregut glands of vermivorous cone shells. Australian Journal of Zoology 19: 313-326.
186. Marsh H. 1977. The radular apparatus of Conus. Journal of Molluscan Studies 43: 1-11.
187. Matthias M. 1914. Vergleichend anatomische Untersuchungen über den Darmkanal und das Herz einiger Arcaceen. Jenaische Zeitschrift für Naturwissenschaft 52: 363-444.
188. Medinskaya AI. 1992. Anatomy of the proboscis walls in Neogastropoda (Gastropoda) and its connection with diet and feeding mechanisms. Ruthenica 2: 27-35.
189. Medinskaya AI. 1998. Anatomy of the midgut of some Neogastropoda from the offshore zone of the Japan Sea. Ruthenica 3: 17-24.
190. Mello DA. 1988. Morfologia do aparelho genital de Marisa planogyra Pilsbry, 1993 e M. cornuarietis Linné, 1767 (Gastropodae - Ampullariidae). Revista Nordestina de Biologia 6: 7-14.
191. Mikkelsen PM, Mikkelsen PS, Karlen DJ. 1995. Molluscan biodiversity in the Indian River Lagoon, Florida. Bulletin of Marine Science 57: 94-127.
192. Miller JA. 1989. The toxoglossan proboscis: structure and function. Journal of Molluscan Studies 55: 167-181.
193. Mitra SB. 1901. The crystalline style of lamellibranchs. Quarterly Journal of Microscopical Science 44: 591-602.
194. Morrison JPE. 1955. Notes on American cyclophorid land snails, with two new names, eight new species, three new genera and the Family Amphicyclotidae separated on animal characters. Journal of the Washington Academy of Sciences 45: 149-162.
195. Morton JE. 1951a. The structure and adaptations of the New Zealand Vermetidae. I. The genus Serpulorbis. Proccedings of the Royal Society of New Zealand 79: 1-19.
196. Morton JE. 1951b. The structure and adaptations of the New Zealand Vermetidae. II. The genera Stephopoma and Pyxipoma. Proceedings of the Royal Society of New Zealand 79: 20-42.
197. Morton JE. 1951c. The structure and adaptations of the New Zealand Vermetidae. III. Novastoa lamellosa and its affinities. Proceedings of the Royal Society of New Zealand 79: 43-51.
198. Morton JE. 1952a. A preliminary study of the land operculate Murdochia pallidum (Cyclophoridae, Mesogastropoda). Transactions of the Royal Society of New Zealand 80: 69-79.
199. Morton JE. 1952b. The role of the crystalline style. Proceedings of the Malacological Society of London 29: 85-92.
200. Morton JE. 1953. The functions of the gastropod midgut. Proceedings of the Linnean Society of London 164: 240-246.
201. Morton JE. 1954. The evolution of vermetid gastropods. Pacific Science 9: 3-15.
202. Morton JE. 1960. The habits of Cyclope neritea, a style-bearing stenoglossan gastropod. Proceedings of the Malacological Society of London 34: 96-105.
203. Morton JE. 1965. Form and function in the evolution of the Vermetidae. Bulletin of the British Museum (Natural History), Zoology 11: 585-630.
204. Morton JE. 1975. Form and habit in some small gastropods of New Zealand boulder beaches. The Veliger 18: 1-15.
205. Nelsen TC. 1918. On the origin, nature and functions of the crystalline style of lamellibranchs. Journal of Morphology 31: 53-111.
206. Nixon K. 1995. CLADOS. Version 1.4.93. (Program and Documentation. Program published by the author. L. H. Bailey Hortorium, Cornell University, Ithaca, New York.
207. Nixon K. 1995. DADA. Version 1.97. Program and Documentation. Program published by the author. L. M. Bailey Hortorium, Cornell University, Ithaca, New York.
208. Nixon K, Carpenter JM. 1996. On simultaneous analysis. Cladistics 12: 221-241.
209. Nybakken J. 1970a. Radular anatomy and systematics of the West American Conidae (Mollusca, Gastropoda). American Museum Novitates 2414: 1-29.
210. Nybakken J. 1970b. Correlation of radula tooth structure and food habits of three vermivorous species of Conus. The Veliger 12: 316-318.
211. Nybakken J. 1990. Ontogenetic change in the Conus radula, its form, distribution among the radula types, and significance in systematics and ecology. Malacologia 32: 35-54.
212. Oliver GP. 1982. A new species of cancellariid gastropod from Antarctica with a description of the radula. Bulletin of the British Antarctic Survey (Cambridge) 57: 15-20.
213. Olsson AA. 1970. The cancellariid radula and its interpretation. Palaeontographica Americana 7: 19-23.
214. Olsson AA, Harbison A. 1953. Pliocene Mollusca of southern Florida, with special reference to those from north Saint Petersburg. Academy of Natural Sciences of Philadelphia Monographs 8: 1-457.
215. d'Orbigny AD. 1834-46. Mollusques. Voyage dans l'Amerique meridionale. 1826-33, Vol. 5. Paris.
216. Orton JH. 1912. The mode of feeding of Crepidula, with an account of the current producing mechanism in the mantle cavity, and some remarks on the mode of feeding in gastropods and lamellibranchs. Journal of the Marine Biological Association (United Kingdom) 9: 444-478.
217. Orton JH. 1913. On ciliary mechanisms in brachiopods and some polychaetes, with a comparison of the ciliary mechanisms un the gills of molluscs, Protochordata, brachiopods and cryptocephalous polychaetes, and an account of the endostyle of Crepidula and its allies. Journal of the Marine Biological Association (United Kingdom) 10: 283-311.
218. Owen G. 1966. Digestion. In: Wilbur KM, Yonge CM, eds. Physiology of Mollusca, 2. New York: Academic Press, 53-96.
219. Perrier, R. 1889. Recherches sur l'anatornie et l'histologie du rein des gastéropodes, Prosobranchiata. Annales des Sciences Naturelles. Zoologie et Biologie Animale 8: 61-192.
220. Petit RE, Harasewych MG. 1986. New Philippine Cancellariidae (Gastropoda: Cancellariacea), with notes on the fine structure and function of the nematoglossan radula. The Veliger 28: 436-443.
221. Ponder WF. 1965. The family Eatoniellidae in New Zealand. Records of the Auckland Institute and Museum 6: 47-99.
222. Ponder WF. 1967. The classification of the Rissoidae and the Orbitestellidae with descriptions of some new taxa. Transactions of the Royal Society of New Zealand, Zoology 9: 193-224.
223. Ponder WF. 1970. Some aspects of the morphology of four species of the neogastropod family Marginellidae with a discussion on the evolution of the toxoglossan poison gland. Journal of the Malacological Society of Australia 2: 55-81.
224. Ponder WF. 1973. The origin and evolution of the Neogastropoda. Malacologia 12: 295-338.
225. Ponder WF. 1983. Review of the genera of the Barleeidae (Mollusca: Gastropoda: Rissoacea). Records of the Australian Museum 35: 231-281.
226. Ponder WF. 1984. A review of the genera of the Iravadiidae (Gastropoda: Rissoacea) with an assessment of the relationships of the family. Malacologia 25: 21-71.
227. Ponder WF. 1988. The truncatelloidean (= rissoacean) radiation - a preliminary phylogeny. Malacological Review Supplement 4: 129-164.
228. Ponder WF. 1991. The anatomy of Diala, with an assessment of its taxonomic position (Mollusca: Cerithioidea). In: Wells FE, Walker DI, Kirkman H, Lethbridge R, eds. Proceedings of the Third International Marine Biological Workshop. The Marine Flora and fauna of Albany, Western Australia. Volume 2. Perth: Western Australian Museum, 499-519.
229. Ponder WF, Colgan DJ, Clark GA. 1991. The morphology, taxonomy and genetic structure of Tatea (Mollusca: Gastropoda: Hydrobiidae), estuarine snails from temperate Australia. Australian Journal of Zoology 39: 445-497.
230. Ponder WF, Linberg DR. 1996. Gastropod phylogeny - challenges for the 90s. In: Taylor J, ed. Origin and evolutionary radiation of the Mollusca. London: Oxford University Press, 135-154.
231. Ponder WF, Lindberg DR. 1997. Towards a phylogeny of gastropod molluscs - an analysis using morphological characters. Zoological Journal of the Linnean Society 119: 83-265.
232. Ponder WF, Taylor JD. 1992. Predatory shell drilling by two species of Austroginella (Gastropoda: Marginellidae). Journal of Zoology 228: 317-328.
233. Ponder WF, Warén A. 1988. Classification of the Caenogastropoda and Heterostropha - a list of the family group names and higher taxa. Malacological Review Supplement 4: 288-328.
234. Ponder WF, Yoo EK. 1980. A review of the genera of the Cingulopsidae with a revision of the Australian and tropical Indo-Pacific species (Mollusca: Gastropoda: Prosobranchia). Records of the Australian Museum 33: 1-24.
235. Prashad B. 1925. Anatomy of the common Apple-Snail, Pila globosa. Memoirs of the Indian Museum 8: 91-151.
236. Randles WB. 1902. On the presence of a crystalline style and style-sac in Turritella communis. Anatomischer Anzeiger 21: 200-203.
237. Ranjah AR. 1942. The embryology of the Indian apple-snail, Pila globosa (Swainson) (Mollusca, Gastropoda). Records of the Indian Museum 44: 217-322.
238. Rau A. 1934. Anatomisch-histologische Untersuchungen an Cypraeen. Jenaische Zeitschrift für Naturwissenschaft 69: 83-168.
239. Reed SE. 1995a. Reproductive anatomy and biology of the genus Strombus in the Caribbean. I. Males. Journal of Shellfish Research 14: 325-330.
240. Reed SE. 1995b. Reproductive anatomy and biology of the genus Strombus in the Caribbean. II. Females. Journal of Shellfish Research 14: 331-336.
241. Reid DG. 1986. The littorinid molluscs of mangrove forests in the Indo-Pacific region. London: British Museum (Natural History).
242. Reid RGB, Friesen JA. 1980. The digestive system of the moon snail Polynices lewisii (Gould, 1847) with emphasis on the role of the oesophageal gland. The Veliger 23: 25-34.
243. Riese K. 1931. Phylogenetische Betrachtungen über das Nervensystem von Cypraea moneta auf Grund seiner Morphologie und Histologie. Jenaische Zeitschrift für Naturwissenschaft 65: 361-486.
244. Risbec J. 1927. De l'anatomie de trois Strombides et du Modulus candidus Petit. Annales du Musée d'Histoire Naturelle de Marseille. Zoologie 21: 3-19.
245. Risbec J. 1952. Observations sur l'anatomie des Nassidae de Nouvelle-Caledonie. Bulletin de la Société Zoologique de France 79: 487-495.
246. Risbec J. 1953. Note sur la biologie et l'anatomie de Janthina globosa (Gast. Prosobranches). Bulletin de la Société Zoologique de France 78: 194-201.
247. Robertson R. 1963. Wentletraps (Epitoniidae) feeding on sea anemones and corals. Proceedings of the Malacological Society of London 5: 51-63.
248. Robertson R. 1981a. Protandry with only one sex change in an Epitonium (Ptenoglossa). The Nautilus 95: 184-186.
249. Robertson R. 1981b. Epitonium millecostatum and Coralliophila clathrata: two prosobranch gastropods symbiotic with Indo-Pacific Palythoa (Coelenterata: Zoanthidae). Pacific Science 34: 1-17.
250. Robertson R. 1983. Observations on the life history of the wentletrap Epitonium albidum in the West Indies. American Malacological Bulletin 1: 1-12.
251. Robson GC. 1920. On the anatomy of Paludestrina jenkinsi. Annals and Magazine of Natural History. (Series 9) 5: 425-431.
252. Robson GC. 1922. On the style-sac and intestine in Gastropoda and Lamellibranchia. Proceedings of the Malacological Society of London 15: 41-46.
253. Rosenberg G. 1998. Reproducibility of results in phylogenetic analysis of molluscs: a reanalysis of the Taylor, Kantor, and Sysoev (1993) data set for conoidean gastropods. American Malacological Bulletin 14: 219-228.
254. Rosenberg G, Kuncio GS, Davis GM, Harasewych MG. 1994. Preliminary ribosomal RNA phylogeny of gastropod and unionoidean bivalve molluscs. The Nautilus, Supplement 2: 111-121.
255. Rosenberg G, Tillier S, Tillier A, Kuncio GS, Hanlon RT, Masselot M, Williams CJ. 1997. Ribosomal RNA phylogeny of selected major clades in the Mollusca. Journal of Molluscan Studies 63: 301-309.
256. Salvini-Plawen Lv, Haszprunar G. 1987. The Vetigastropoda and the systematics of streptoneurous Gastropoda (Mollusca). Journal of Zoology 211: 747-770.
257. Salvini-Plawen Lv. 1981. The molluscan digestive system in evolution. Malacologia 21: 371-401.
258. Salvini-Plawen Lv. 1988. The structure and function of molluscan digestive systems. In: Trueman ER, Clarke MR, eds. The Mollusca, 11: molluscan form and function. New York: Academic Press, 301-379.
259. Sasaki T. 1998. Comparative anatomy and phylogeny of the Recent Archaeogastropoda (Mollusca: Gastropoda). University of Tokyo Bulletin 38: 1-224.
260. Schulte-Oehlmann U, Fioroni P, Oehlmann J, Stroben E. 1994. The genital system of Marisa cornuarietis (Gastropoda, Ampullariidae) - a morphological and histological analysis. Zoologische Beiträge 36: 59-81.
261. Scott HIS. 1943. Sobre la organización de Ampullaria (Asolene) megastoma Sowerby. Notas del Museo de la Plata. Zoologia 70: 269-280.
262. Seshaiya RV. 1929. The stomach of Paludomus tanschaurica (Gmelin). Records of the Indian Museum 31: 7-12.
263. Seshaiya RV. 1930. Anatomy of Mysorella costigera Kuster. Records of the Indian Museum 32: 1-28.
264. Seshaiya RV. 1932. The style sacs of some more gastropods. Records of the Indian Museum 34: 171-175.
265. Seshaiya RV. 1934a. A further note on the style sacs of gastropods. Records of the Indian Museum 36: 179-183.
266. Seshaiya RV. 1934b. Anatomy of Paludomus tanschaurica. Records of the Indian Museum 36: 185-212.
267. Shaw HON. 1909. Cypraea and Trivia. Proceedings of the Malacological Society of London 8: 561-565.
268. Shaw HON. 1914. On the anatomy of Conus tulipa, Linn. & Conus textile, Linn. Quarterly Journal of Microscopical Science 60: 1-60.
269. Shimek RL, Kohn AJ. 1981. Functional morphology and evolution of the toxoglossan radula. Malacologia 20: 423-438.
270. Simroth H. 1896-1907. Gastropoda prosobranchia. H. G. Bronn's Klassen und Ordnungen Des Thierreichs, Wissenschaftlich Dargestellt in Wort und Bild, Vol. 3. Mollusca, Abteilung II. Leipzig: CF Winter'sche Verlagshandlung.
271. Simroth H. 1902. Über der Ernährung der Tiere und der Weichtiere im besonderen. Verhandlungen des V. Internationalen Zoologen-Congresses Zu Berlin 1901: 1-9.
272. Sitnikova TY, Starobogatov YI. 1982. Content and systematic status of the group Architaenioglossa (Gastropoda, Pectinibranchia). Zoologischeskii Zhurnal 61: 831-842 (in Russian).
273. Smith EH. 1967. The neogastropod midgut, with notes on the digestive diverticula and intestine. Transactions of the Royal Society of Edinburgh 67: 23-42.
274. Smith CR, Breyer A. 1983. Comparison of northern and southern populations of Epitonium tinctum (Carpenter, 1864) on the California Coast. The Veliger 26: 37-46.
275. Sorenson MD. 1996. Treerot, Michigan: Musuem of Zoology, University of Michigan.
276. Spengel JW. 1881. Die Geruchsorgane und das Nervensystem der Mollusken. Zeitschrift für Wissenschaftliche Zoologie 35: 333-383.
277. Spengler HA, Kohn AJ. 1995. Comparative external morphology of the Conus osphradium (Mollusca: Gastropoda). Journal of Zoology 235: 439-453.
278. Starmühlner F. 1969. Die Gastropoden der Madagassischen Binnengewässer. Malacologia 8: 1-434.
279. Strong EE, Glaubrecht M. 2002. Evidence for convergent evolution of brooding in a unique gastropod from Lake Tanganyika: anatomy and affinity of Tanganyicia rufofilosa (Smith, 1880) (Caenogastropoda, Cerithioidea, Paludomidae). Zoologica Scripta 31: 167-184.
280. Strong EE, Harasewych MG. 1999. Anatomy of the hadal limpet, Macleaniella moskalevi (Gastropoda, Cocculinoidea). Invertebrate Biology 118: 137-148.
281. Strong EE, Harasewych MG, Haszprunar G. 2003. Phylogeny of the Cocculinoidea (Mollusca, Gastropoda). Invertebrate Biology in press.
282. Strong EE, Lipscomb DL. 2000. Character coding and inaplicable data. Cladistics 15: 363-371.
283. Taki I. 1937. Zur Morphologie und systematischen Stellung von Conus tuberculosus (Tomlin). Zoological Magazine (Tokyo) 49: 219-231.
284. Taki I. 1956. Anatomical study on Japanese Epitoniidae, 1. Epitonium, Amaea and Papyriscala. Bulletin of the National Science Museum (Tokyo) 39: 71-79.
285. Taki I. 1957. Anatomical study on Japanese Epitoniidae, 2. Gyroscala and Acutiscala. Bulletin of the National Science Museum, (Tokyo) 40: 176-182.
286. Taylor DW. 1966. A remarkable snail fauna from Coahuila, Mexico. The Veliger 9: 152-223.
287. Taylor JD, Kantor YI, Sysoev AV. 1993. Foregut anatomy, feeding mechanisms, relationships and classification of the Conoidea (Toxoglossa) (Gastropoda). Bulletin of the British Museum (Natural History) 59: 125-170.
288. Taylor JD, Miller JA. 1989. The morphology of the osphradium in relation to feeding habits in meso- and neogastropods. Journal of Molluscan Studies 55: 227-237.
289. Taylor JD, Morris NJ. 1988. Relationships of neogastropods. Malacological Review Supplement 4: 167-179.
290. Thiele J. 1902. Die systematische Stellung der Solenogastren und die Phylogenie der Mollusken. Zeitschrift für Wissenschaftliche Zoologie 72: 249-466.
291. Thiele J. 1903. Die Anatomie und systematische Stellung der Gattung Cocculina. Wissenschaftliche Ergebnisse der Deutschen Tiefsee-Expidition auf dem Dampfer 'Valdivia' 7: 147-179.
292. Thiele J. 1928a. Revision des Systems der Hydrobiiden und Melaniiden. Zoologische Jahrbücher, Abteilung für Systematique, Ökologie und Geographie der Thiere 55: 351-402.
293. Thiele J. 1928b. Über ptenoglosse Schnecken. Zeitschrift für Wissenschaftliche Zoologie 132: 73-94.
294. Thiele J. 1929. Handbuch der Systematischen Weichtierkunde. Teil 1. Jena: Fischer.
295. Thompson FG. 1969. Some Mexican and Central American Land Snails of the Family Cyclophoridae. Zoologica 54: 35-77.
296. Tielecke H. 1940. Anatomie, Phylogenie und Tiergeographie der Cyclophoriden. Archiv für Naturgeschichte 9: 317-371.
297. Tillier S, Masselot M, Hevré P, Tillier A. 1992. Phylogénie moléculaire des Gastropodes (Mollusca) fondée sur le séquençage partiel de l'ARN ribosomique 28 S. Comptes Rendus Academie des Sciences (Paris), Series 3 134: 79-85.
298. re Partie. Annales du Musée d'Histoire Naturelle de Marseille, Zoologie 18: 1-120.
299. Warén AH. 1980. The systematic position of Couthouyella (Gastropoda: Epitoniidae). The Nautilus 94: 105-107.
300. Weber L. 1924. Die Mantel- und Geschlechtorgane von Cyclophorus ceylanicus (Sowerby). Jenaische Zeitschrift für Naturwissenschaft 60: 397-438.
301. Wenz W. 1938-44. Gastropoda, Allgemeiner Teil und Prosobranchia. In: Schindewolf OH, ed. Handbuch der Paläozoologie. 6. Berlin: Gebrüder Bornträger, 1-1639.
302. Werner B. 1953. Über den Nahrungserwerb der Calyptraeidae (Gastropoda Prosobranchia). Morphologie, Histologie und Funktion der am Nahrungserwerb beteiligten Organe. Helgoländer Wissenschaftliche Meeresuntersuchungen 4: 260-315.
303. Whitaker MB. 1951. On the homologies of the oesophageal glands of Theodoxus fluviatilis (L.). Proceedings of the Malacological Society of London 29: 21-34.
304. Wilkinson M. 1995. A comparison of two methods of character construction. Cladistics 11: 297-308.
305. Wingstrand KG. 1985. On the anatomy and relationships of recent Monoplacophora. Galathea Report 16: 1-94.
306. Winnepenninckx B, Backeljau T, deWachter R. 1996. Investigation of Molluscan phylogeny on the basis of 18S rRNA sequences. Molecular Biology and Evolution 13: 1306-1317.
307. Winnepenninckx B, Steiner G, Backeljau T, deWachter T, deWachter R. 1998. Details of gastropod phylogeny inferred from 18S rRNA sequences. Molecular Phylogenetics and Evolution 9: 55-63.
308. Woodward MF. 1894. On the anatomy of Pterocera with some notes on the crystalline style. Proceedings of the Malacological Society of London 1: 143-150.
309. Woodward MF. 1899. On the anatomy of Adeorbis subcarinatus, Montague. Proceedings of the Malacological Society of London 3: 140-146.
310. Wu SK. 1965. Comparative functional studies of the digestive system of the muricid gastropods Drupa ricina and Morula granulata. Malacologia 3: 211-233.
311. Wu SK. 1973. Comparative studies on the digestive and reproductive systems of some muricid gastropods. Bulletin of the American Malacological Union 1973: 18.
312. Yeates DK. 1995. Groundplans and exemplars: paths to the tree of life. Cladistics 11: 343-357.
313. Yipp MW. 1980. The functional morphology of the organs of feeding and digestion in Crepidula walshi (Prosobranchia: Calyptraeidae). In: Morton BS, ed. Proceedings, First International Workshop on the Malacofauna of Hong Kong and Southern China, Hong Kong, 1977. Hong Kong: Hong Kong University Press. 221-252.
314. Yipp MW. 1983. The anatomy of the organs of reproduction of Crepidula walshi (Mollusca: Gastropoda). In: Morton B, Dudgeon D, eds. Proceedings of the Second International Workshop on the Malacofauna of Hong Kong and Southern China, Hong Kong, 1983. Hong Kong: Hong Kong University Press. 243-256.
315. Yonge CM. 1926. The disappearance of the crystalline style. Nature (London) 117: 691-692.
316. Yonge CM. 1930. The crystalline style of the Mollusca and a carnivorous habit cannot normally co-exist. Nature (London) 125: 444-445.
317. Yonge CM. 1932. Notes on feeding and digestion in Pterocera and Vermetus, with a discussion on the occurrence of the crystalline style in the Gastropoda. Science Reports of the Great Barrier Reef Expedition, British Museum of Natural History 1: 259-281.
318. Yonge CM. 1938. Evolution of ciliary feeding in the Prosobranchia, with an account of feeding in Capulus ungaricus. Journal of the Marine Biological Association (United Kingdom) 22: 453-468.
319. Ziegelmeier E. 1954. Beobachtungen über den Nahrungserwerb bei der Naticide Lunatia nitida Donovan (Gastropoda Prosobranchia). Helgoländer Wissenschaftliche Meeresuntersuchungen 5: 1-33.
320. Ziegelmeier E. 1957. Zur Fortpflanzungsbiologie der Naticiden. Helgoländer Wissenschaftliche Meeresuntersuchungen 8: 94-118.