Assiminea

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Assiminea
Apertural view of a shell of Assiminea grayana
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Littorinimorpha
Superfamily: Truncatelloidea
Family: Assimineidae
Genus: Assiminea
Fleming, 1828
Type species
Assiminea grayiana
J. Fleming, 1828
Synonyms
  • Assemania Knight, 1900 (unjustified emendation)
  • Assiminea (Assiminea) J. Fleming, 1828
  • Assiminia J. Fleming, 1828 (alternative original spelling [used in the index p. 557])
  • Bythinia (Assiminea) J. Fleming, 1828
  • Syncera Gray 1821 (nomen nudum)

Assiminea is a genus of minute, salt-tolerant snails with an operculum, aquatic gastropod mollusks, or micromollusks, in the family Assimineidae.[1]

Distribution and habitat

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These snails can be found worldwide. They live usually in brackish water between tide-marks on the mud of estuaries and salt marshes of tropical and temperate regions, at beaches, in water and at land. But species are to be found both in perfectly salt and in perfectly fresh water. [2]

Description

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These are very small to medium large snails, between 2 and 13 mm. Some adults do not exceed a size of 3 mm. Some related genera, such as Paludinella, are so remarkably similar in shell form that they are often confused.

The shape of the thin shells is somewhat ovately conical. The margin of the aperture is simple. The operculum is in most cases horny.[3][4] The eyes are at the end of short, stout stalks. They feed on vegetable detritus and small algae. They lay their eggs in the mud, and hatch as free-swimming larvae.

Species

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According to the World Register of Marine Species, the following species with valid names are included within the genus Assiminea :[5]

The Indo-Pacific Molluscan Database also includes the following species with names in current use :[6]

The database ITIS also mentions the following species :[7]

Synonyms

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References

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  1. ^ Bouchet, P.; Gofas, S. (2015). Assiminea Fleming, 1828. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=137681 on 29 April 2015
  2. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value). Public Domain This article incorporates text from this source, which is in the public domain.
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  • Fleming, J. 1828. A history of British animals, exhibiting the descriptive characters and systematic arrangement of the genera and species of quadrupeds, birds, reptiles, fishes, Mollusca, and Radiata of the United Kingdom; including the indigenous, extirpated, and extinct kinds, together with periodical and occasional visitants. – pp. i–xxxii [= 1–23], 1–565, [1]. Edinburgh. (Bell & Bradfute).
  • Knight G.A.F. 1900. The etymology of the names Azeca and Assiminea of Leach. Journal of Conchology, 9: 271–276
  • R. Tucker Abbott, The Gastropod Genus Assiminea in the Philippines; Proceedings of the Academy of Natural Sciences of Philadelphia Vol. 110 (1958), pp. 213–278
  • Vaught, K.C. (1989). A classification of the living Mollusca. American Malacologists: Melbourne, FL (USA). Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).. XII, 195 pp.
  • Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50: pp. 180–213
  • Gofas, S.; Afonso, J.P.; Brandào, M. (Ed.). (S.a.). Conchas e Moluscos de Angola = Coquillages et Mollusques d'Angola. [Shells and molluscs of Angola]. Universidade Agostinho / Elf Aquitaine Angola: Angola. 140 pp.
  • van Aartsen (2008). Basteria 72 (4–6) : 165–181
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