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1. Tryonia: Tryonia is a genus of freshwater snails in the family Hydrobiidae. This genus is sometimes placed in the family Cochliopidae Snails of this genus are very small with narrow shells. (Biology) [100%] 2024-01-19 [Tryonia] [Cochliopidae]...
2. Minute tryonia: The minute tryonia scientific name Tryonia ericae, is a species of very small or minute freshwater snail with a gill and an operculum, an aquatic gastropod mollusk in the family Hydrobiidae. This species is endemic to the United States. (Biology) [70%] 2023-11-08 [Tryonia]
3. Quitabaquito tryonia: The Quitabaquito tryonia, scientific name Tryonia quitobaquitae, is a species of small freshwater snail with a gill and an operculum. It is an aquatic gastropod mollusc in the family Hydrobiidae. (Species of gastropod) [70%] 2025-04-29 [Endemic molluscs of the United States] [Tryonia]...
4. Point of Rocks tryonia: The Point of Rocks tryonia, scientific name Tryonia elata, is a species of freshwater snail, an aquatic gastropod mollusk in the family Hydrobiidae. This species is endemic to the United States. (Biology) [50%] 2023-06-28 [Tryonia]