| Koster's tryonia | |
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| Species: | T. kosteri |
| Binomial name | |
| Tryonia kosteri Taylor, 1987 | |
Koster's tryonia, scientific name Tryonia kosteri, is a species of small freshwater snail with a gill and an operculum, an aquatic gastropod mollusk in the family Hydrobiidae.
This species is endemic to New Mexico in the United States.
Tryonia is a genus of freshwater snails in the family Hydrobiidae. This genus is sometimes placed in the family Cochliopidae
Chamaecyparis obtusa is a species of cypress native to central Japan in East Asia, and widely cultivated in the temperate northern hemisphere for its high quality timber and ornamental qualities, with many cultivars commercially available.
A species that is extinct in the wild (EW) is one that has been categorized by the International Union for Conservation of Nature as known only by living members kept in captivity or as a naturalized population outside its historic range due to massive habitat loss.
The Harney Basin duskysnail, scientific name Colligyrus depressus, is a species of freshwater snail, an aquatic gastropod mollusk in the family Hydrobiidae.
The Diamond Y springsnail, scientific name Tryonia adamantina, is a species of small freshwater snail with a gill and an operculum, an aquatic gastropod mollusk in the family Hydrobiidae.
Tryonia alamosae, common name the Alamosa springsnail, is a species of small freshwater snail, an aquatic prosobranch gastropod mollusk in the family Hydrobiidae.
The sportingoods tryonia, scientific name Tryonia angulata, is a species of small freshwater snail with a gill and an operculum, an aquatic gastropod mollusk in the family Hydrobiidae. This species is endemic to the United States.
Brune's tryonia, scientific name Tryonia brunei, is a species of very small freshwater snail that has a gill and an operculum, an aquatic gastropod mollusks in the family Hydrobiidae. This species is endemic to the United States (Texas). It was formerly listed as Threatened in 1993/1994 and Data Deficient since 1996 until it was changed to Critically Endangered and possibly extinct in 2012; this is because it is found only in Phantom Lake, Balmorhea Lake, has range of less than 100 km², and was last observed in 1993. A 1991 report by the United States Fish and Wildlife Service also listed it as Endangered and they also later noted the unknown population. It is found in firm substratum and on mud before modification.
Cheatum's snail also known as the Phantom tryonia, scientific name Tryonia cheatumi, is a species of small freshwater snails with a gill and an operculum, aquatic gastropod mollusks in the family Hydrobiidae.
The grated tryonia, also known as the White River snail, scientific name Tryonia clathrata, is a species of very small or minute freshwater snail with an operculum, an aquatic gastropod mollusk in the family Hydrobiidae. This species is endemic to the United States.
The Point of Rocks tryonia, scientific name Tryonia elata, is a species of freshwater snail, an aquatic gastropod mollusk in the family Hydrobiidae.
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.
The Gila tryonia is a species of freshwater snail in the family Hydrobiidae, the mud snails. It is endemic to Arizona in the United States, where it is known only from Graham County.
The California brackish water snail, also known as the mimic tryonia, scientific name Tryonia imitator, is a species of very small brackish water snails that have an operculum, aquatic gastropod mollusks in the family Hydrobiidae.
The Quitabaquito tryonia, scientific name Tryonia quitobaquitae, is a species of small freshwater snail with a gill and an operculum, an aquatic gastropod mollusk in the family Hydrobiidae. This species is endemic to the United States.
The Amargosa tryonia, scientific name Tryonia variegata, is a species of small freshwater snail with a gill and an operculum, an aquatic gastropod mollusk in the family Hydrobiidae. This species is endemic to California, United States. The common name refers to the Amargosa River.
Amblyptilia kosteri is a moth of the family Pterophoridae that is known from Argentina and Brazil.
Tryonia is a genus of ferns in the subfamily Pteridoideae of the family Pteridaceae. Species are native to the east of Brazil and to Uruguay.
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