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pitted stingray
The pitted stingray (''Dasyatis matsubarai'') is a species of stingray in the family Dasyatidae, endemic to the waters around Japan and the Sea of Japan. It typically found near the coast at depths of , but may also venture into the open sea. Measuring up to across, the pitted stingray has a diamond-shaped pectoral fin disc with a characteristic "W"-shaped groove on the underside. Other identifying characteristics of this species include its dark gray dorsal coloration with small white spots, and the presence of dorsal tubercles in adults. Pitted stingrays are caught as bycatch in coastal fisheries and brought to market. The International Union for Conservation of Nature (IUCN) does not yet have sufficient data to assess this species beyond Data Deficient.
==Taxonomy==
Japanese ichthyologist Yasunori Miyosi described the pitted stingray in a 1939 issue of the ''Bulletin of the Biogeographical Society of Japan'', based on a specimen collected from the Hyuga-nada Sea in eastern Miyazaki Prefecture, Japan.〔(Catalog of Fishes (Online Version) ). California Academy of Sciences. Retrieved on January 9, 2010.〕 Some authors regard the multispine giant stingray (''D. multispinosa'') as the same as this species.〔
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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