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Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
(unranked): clade Caenogastropoda

clade Hypsogastropoda
clade Littorinimorpha

Superfamily: Rissooidea
Family: Cochliopidae[1]
Genus: Tryonia
Stimpson, 1865[2]

Tryonia is a genus of mostly minute freshwater snails which have an operculum, aquatic gastropod mollusks in the family Cochliopidae.[1]

This genus was traditionally placed within the family Hydrobiidae.


Species within the genus Tryonia include:


  1. ^ a b Wesselingh F. P., Anderson L. C. & Kadolsky D. (2006). "Molluscs from the Miocene Pebas Formation of Peruvian and Colombian Amazonia". Scripta Geologica 1333: 19-290. PDF.
  2. ^ a b Stimpson W. (1865). "Diagnoses of newly discovered genera of gasteropods, belonging to the sub-fam. Hydrobiinae, of the family Rissoidae". American Journal of Conchology 1: 52-54. page 54.

External links[edit]

  • Tryonia at National Center for Biotechnology Information (NCBI)
  • Hershler R. (1999). "A systematic review of the hydrobiid snails (Gastropoda: Rissoidea) of the Great Basin, western United States. Part II. Genera Colligyrus, Fluminicola, Pristinicola, and Tryonia". The Veliger 42(4): 306-337. PDF.
  • Hershler R. & Thompson F. G. (1987). "North American Hydrobiidae (Gastropoda: Rissoacea): redescription and the systematic relationships of Tryonia Stimpson, 1865 and Pyrgulopsis Call and Pilsbry, 1886". The Nautilus 101(1): 25-32.
  • Stimpson W. (1865). "Researches upon the Hydrobiinae and allied forms chiefly made upon materials in the museum of the Smithsonian Institution". Smithsonian Miscellaneous Collections 7(201): 1-59. page 48.