Stenothyridae
Family of gastropods
From Wikipedia, the free encyclopedia
Stenothyridae is a family of small freshwater snails, snails with gills and an operculum, aquatic gastropod molluscs in the superfamily Truncatelloidea.[3]
| Stenothyridae | |
|---|---|
| |
| A drawing of an apertural view of Stenothyra hybocystoides, with operculum in place | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Littorinimorpha |
| Superfamily: | Truncatelloidea |
| Family: | Stenothyridae Tryon, 1866[1] |
| Diversity[2] | |
| About 60 freshwater species | |
This family has no subfamilies.[3]
Distribution
There are known about 60 freshwater species of Stenothyridae in the Palearctic (6 species), Oriental (about 60 species) and Australasian region (about 5 species)[2] and some marine. There are 19 endemic species of Stenothyridae in the Lower Mekong River flowing through Thailand, Laos and Cambodia.[2]
Description
American malacologist George Washington Tryon firstly defined this taxon as Stenothyrinæ in 1866.[1] Tryon's diagnosis reads as follows:[1]
Stenothyrinæ. Shell turbinate. Operculum subspiral, calcareous. Distribution Indian. Stenothyra, Gabbia.
Currently the genus Gabbia is classified within the family Bithyniidae.
Genera
Genera within the family Stenothyridae include:
- Farsithyra Glöer & Pešić, 2009[4]
- Gangetia Ancey, 1890[5]
- Stenothyra Benson, 1856 - type genus of the family Stenothyridae[3]
Ecology
The habitat of Stenothyridae include rivers, streams and estuaries.[2] Stenothyridae invaded freshwater habitats from marine ones in at least one independent lineage.[2] Some species of Stenothyridae are euryhaline and/or marine.[2] Probably there are some amphidromous (migrate from freshwater to the sea) species of Stenothyridae.[2]
