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mitotic stingaree
The mitotic stingaree or blotched stingaree (''Urolophus mitosis'') is a little-known species of stingray in the family Urolophidae, so named because it has light blue blotches on its back that resemble cells undergoing mitotic division. Though not uncommon, it is found only in a small area of the outer continental shelf off northwestern Australia, at around down. This species attains a length of long and has a diamond-shaped pectoral fin disc with broadly rounded corners and a skirt-shaped curtain of skin between the nostrils. Its tail has subtle skin folds running along either side, no dorsal fin, and a slender leaf-shaped caudal fin. The International Union for Conservation of Nature (IUCN) has listed the mitotic stingaree under Least Concern, as there is little fishing within its range.
==Taxonomy==
The mitotic stingaree was described by Peter Last and Martin Gomon in a 1987 issue of ''Memoirs of the National Museum of Victoria'', in which they gave it the specific epithet ''mitosis'' (derived from the Greek ''mitos'', meaning "thread") in reference to its unique color pattern. The type specimen is a female across, collected by the research trawler FRV ''Soela'' on 2 April 1982. A close relative is the brown stingaree (''U. westraliensis'').〔
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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