The non-marine molluscs of the republic of Trinidad and Tobago (which comprises two West Indian islands) are a part of the molluscan fauna of Trinidad and Tobago, part of the Natural history of Trinidad and Tobago.

Starting in the 1860s, the terrestrial and freshwater molluscs of Trinidad and Tobago have been fairly well studied. Thomas Bland published the first paper mentioning terrestrial molluscs in 1861.Bland T. (1861). On the Geographical Distribution of the Genera and Species of Land Shells of the West India Islands with a Catalogue of the species of each island. The Annals of The Lyceum of Natural History, New York. Vol. VII. Robert John Lechmere Guppy discovered and identified many more species from 1864 onwards, and along with Edgar Albert Smith was responsible for the earliest comprehensive species lists. The list here includes all the non-marine mollusks found in Trinidad and Tobago's ecosystem including native, introduced and invasive species alike.

Freshwater gastropods

Freshwater gastropods include:

Ampullariidae Marisa cornuarietis (Linnaeus, 1758)Smith E.A. (1896) A List of the Land and Freshwater Mollusca of Trinidad. Journal of Conchlogy 8:231-251.Geijkes, D.C. & Pain, T. (1957): Suriname freshwater snail of the genus Pomacea. Studies on the Fauna of Suriname and others Guyanas, 1(3):41-48 pt.IX-X. Pomacea glauca (Linné, 1758) Pomacea urceus (Müller, 1774)

Ancylidae Hebetancylus excentricus (Morelet, 1851)

Hydrobiidae Pyrgophorus parvulus (Guilding, 1828)

Physidae Physella cubensis (Pfeiffer, 1839)

Planorbidae Tropicorbis pallidus (C.B. Adams, 1846)

Thiaridae Melanoides tuberculata (O. F. Müller, 1774)Bacon P.R. (1978) Notes on some freshwater molluscs from Nariva Swamp, Trinidad. The Living World Journal 1978:14-15.

Land gastropods Land gastropods include:

Helicinidae Helicina nemoralis Guppy, 1866 Helicina dysoni (L. Pfeiffer, 1849) Lucidella ignicoma (Guppy, 1868) Endemic to Trinidad Lucidella lirata (L. Pfeiffer, 1847)

Neocyclotidae Aperostoma translucidum trinitense (Guppy, 1864) Neocyclotus rugatus (Guppy, 1864)

Diplommatinidae

Adelopoma occidentale (Guppy, 1872)

Annulariidae Halotudora aripensis (Guppy, 1864) Endemic to Trinidad

Truncatellidae Truncatella reclusa (Guppy, 1871) Endemic to Trinidad

Veronicellidae Diplosolenodea bielenbergi (Semper, 1885) Sarasinula plebeia (Fischer, 1868)

Achatinidae

Lissachatina fulica (Bowdich, 1822) Invasive Allopeas gracile (Hutton, 1834) Allopeas micra (d’Orbigny, 1835) Beckianum beckianum (L. Pfeiffer, 1846) Leptopeas simplex (Guppy, 1868) Leptinaria unilamellata (d’Orbigny, 1835) Leptinaria urichi (E.A. Smith, 1896) Endemic to Trinidad Stenogyra octogyra (L. Pfeiffer, 1856) Subulina octona (Bruguière, 1798)

Ferussaciidae Karolus consobrinus (d’Orbigny, 1841)

Streptaxidae

Gulella bicolor (Hutton, 1834) Introduced Streptartemon glaber (L. Pfeiffer, 1850) Streptostele musaecola (Morelet, 1860) Introduced

Succineidae Succinea sp. Omalonyx unguis (d'Orbigny, 1836)

Vertiginidae Bothriopupa conoidea (L. Pfeiffer, 1853) Bothriopupa tenuidens (C.B. Adams, 1845)Haas F. (1960) Caribbean Land Molluscs: Vertiginidae. Studies on the Fauna of Curaçao and other Caribbean Islands. 10:1-17. Sterkia eyriesii (Drouet, 1859)

Gastrocoptidae Gastrocopta barbadensis (L. Pfeiffer, 1853) Gastrocopta iheringi (Suter, 1900) Gastrocopta pellucida (L. Pfeiffer, 1840) Gastrocopta servilis riisei (L. Pfeiffer, 1852) Gastrocopta rupicola marginalba (L. Pfeiffer, 1840) Gastrocopta geminidens (Pilsbry, 1917)

Valloniidae Pupisoma dioscoricola (C. B. Adams, 1845)

Amphibulimidae Plekocheilus glaber (Gmelin, 1791)

Bulimulidae Bulimulus sp. Mesembrinus aureolus (Guppy, 1866) Endemic to Trinidad Mesembrinus broadwayi (E.A. Smith, 1896) Endemic to Trinidad Mesembrinus imperfectus (Guppy, 1866) Endemic to Trinidad Mesembrinus mossi (E.A. Smith, 1896) Endemic to Trinidad Mesembrinus rawsoni (Guppy, 1871) Endemic to Tobago Mesembrinus vincentinus (L. Pfeiffer, 1846) Protoglyptus pilosus (Guppy, 1871)

Orthalicidae

Orthalicus undatus (Bruguière, 1792)

Simpulopsidae Simpulopsis corrugata Guppy, 1866

Urocoptidae Brachypodella trinitaria (L. Pfeiffer, 1860) Brachypodella oropuchensis Spence (Possible synonym of above)

Scolodontidae Happia guildingi (Bland, 1865) Miradiscops implicans (Guppy, 1868) Miradiscops lunti (E.A. Smith, 1898) Systrophia alicea (Guppy, 1871) Tamayoa decolorata (Drouët, 1859) Tamayoa trinitaria (E.A. Smith, 1898)

Gastrodontidae

Pseudohyalina umbratilis (Guppy, 1868)

Philomycidae Pallifera sp.

Euconulidae Guppya gundlachi (L. Pfeiffer, 1840) Habroconus ernsti (Jousseaume, 1889) Habroconus cassiquiensis (L. Pfeiffer, 1853)

Helicarionidae Ovachlamys fulgens (Gude, 1900) Introduced

Strophocheilidae Megalobulimus oblongus (Müller, 1774) Megalobulimus oblongus var. tobagoensis (Pilsbry, 1895)

Charopidae Radioconus bactricola (Guppy, 1868) Radiodiscus hollidayi Rutherford, 2020

Trichodisccinidae Trichodiscina coactiliata (Férussac, 1838)

Thysanophoridae Lyroconus plagioptycha (Shuttleworth, 1854)

Freshwater bivalves Freshwater bivalves include:

Mycetopodidae Anodontites leotaudi (Guppy, 1864) Mycetopoda siliquosa (Spix, 1827)Mohammed R.S., Nieweg D.C., Rostant W.G. and Badal P (2008) Collections of Freshwater mussel shells of Anodontites sp. and Mycetopoda sp. in rivers of south-central Trinidad, West Indies. The Living World Journal 2008:76-77.

Sphaeriidae (=Pisidiidae) Pisidium punctiferum (Guppy, 1867)Guppy R. J. L. (1867). "Description of a new freshwater bivalve found in Trinidad" Annals and Magazine of Natural History (3)19(111): 160-161. Eupera cubensis (Prime, 1865)Bass D. (2003) A Survey of Freshwater Macroinvertebrates in Tobago. The Living World Journal 2003:64-68.

See also

Lists of non-marine molluscs of nearby countries and islands: List of non-marine molluscs of Venezuela List of non-marine molluscs of Grenada List of non-marine molluscs of Barbados List of non-marine molluscs of Curaçao List of non-marine molluscs of Aruba List of non-marine molluscs of Guyana

References