Английская Википедия:Arcidens wheeleri

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Arcidens wheeleri is a species of freshwater mussels in the family Unionidae, the river mussels. Its common names are the Ouachita rock pocketbook and Wheeler's pearly mussel.[1] The former monotypic genus[2] of Arkansia was named for the state of Arkansas, where the mussel was first discovered.[2]

This is a federally listed endangered species of the United States.[3]

Distribution

This species is native to Arkansas, Oklahoma, and Texas[4] in the United States, which have only four or five small, isolated populations. Of the remaining populations, only the one located in the Kiamichi River in Oklahoma is viable.[4]

Description

This mussel is not sexually dimorphic; the sexes appear the same. The shell is somewhat rounded or oval, up to Шаблон:Convert long by Шаблон:Convert wide by Шаблон:Convert high. The shell is brown or black, lustrous and iridescent. The nacre is part pink and part white or bluish.[2]

References

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Шаблон:Unionidae-stub

  1. Ошибка цитирования Неверный тег <ref>; для сносок iucn не указан текст
  2. 2,0 2,1 2,2 USFWS. Arkansia wheeleri Recovery Plan. March 2004.
  3. USFWS. Final rule to list the Ouachita rock-pocketbook (mussel) as an endangered species. Federal Register October 23, 1991.
  4. 4,0 4,1 Ошибка цитирования Неверный тег <ref>; для сносок NatureServe не указан текст