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Bat star
The Bat star (''Patiria miniata''), also known as a Sea bat, Webbed star, and Broad-disk star, is a sea star (also called a starfish) in the family Asterinidae (Class Asteroidea, Phylum Echinodermata). It typically has five arms, with the center disk of the animal being much wider than the stubby arms are in length.〔(【引用サイトリンク】title=''Asterina miniata'' )〕 Although the bat star usually has five arms, it sometimes has as many as nine.〔 Bat stars occur in many of colors, including green, purple, red, orange, yellow and brown, either mottled or solid.〔(【引用サイトリンク】title=Bat star, Kelp Forest, Invertebrates, ''Asterina miniata'' )〕 The bat star gets its name from the webbing between its arms, which is said to resemble a bat's wings.
The bat star is usually found in the intertidal zone at an average depth of .〔(【引用サイトリンク】title=''Asterina miniata'' (Broad-Disk Star) )〕 Its range extends from Sitka, Alaska to Baja California in the Pacific Ocean.〔 It is most abundant along the coast of Central California and the Monterey Bay.〔
==Classification==
The genus of this species has transitioned back and forth between ''Asterina'' and ''Patiria'' since its inclusion in Fisher's 1911 North Pacific Asteroidea monograph.〔https://archive.org/details/bulletinunitedst7611911unit〕 However, recent revisions based on molecular systematics have constrained ''Asterina'' and identified ''Patiria'' as a complex of three closely related species in the North Pacific, including ''P. miniata'', ''P. pectinifera'' in Asia and ''P. chilensis'' in South America.〔http://www.marinespecies.org/Asteroidea/aphia.php?p=taxdetails&id=123285〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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