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・ Spectamen rikae
・ Spectamen roseapicale
・ Spectamen rubiolae
・ Speckled ground squirrel
・ Speckled hummingbird
・ Speckled longfin eel
・ Speckled madtom
・ Speckled moray
・ Speckled moray eel
・ Speckled mosquitofish
・ Speckled Mountain
・ Speckled mourner
・ Speckled mousebird
・ Speckled piculet
・ Speckled pigeon
Speckled pocketbook
・ Speckled puffer
・ Speckled rail
・ Speckled Red
・ Speckled reed warbler
・ Speckled sanddab
・ Speckled Skink
・ Speckled smooth-hound
・ Speckled Snake
・ Speckled snake eel
・ Speckled sole
・ Speckled spinetail
・ Speckled spiny tree-rat
・ Speckled swellshark
・ Speckled tanager


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Speckled pocketbook : ウィキペディア英語版
Speckled pocketbook

The speckled pocketbook, scientific name ''Lampsilis streckeri'', is a species of freshwater mussel in the family Unionidae, the river mussels. It is endemic to Arkansas in the United States, where it is threatened by habitat loss. It is a federally listed endangered species of the United States.
This mussel is about 8 centimeters long. It is dark yellow to brown and has chevron-shaped spots and chainlike rays. It is sexually dimorphic, the females being more rounded at the posterior.
When this species was placed on the Endangered Species List it was limited to a six-mile stretch of the Middle Fork of the Little Red River in Arkansas. The damming of the river to form the Greers Ferry Reservoir changed the hydrology of the river, altering the habitat.〔
Since its listing several additional populations have been discovered in the river.〔(【引用サイトリンク】 title=Speckled Pocketbook (''Lampsilis streckeri'' Frierson 1927) 5-Year Review: Summary and Evaluation )
==References==


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Speckled pocketbook」の詳細全文を読む



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