|
''Rossia pacifica diegensis'' is a subspecies of bobtail squid native to the eastern Pacific Ocean off Santa Catalina Basin, California. It occurs at greater depths than its sister taxon ''R. p. pacifica''.〔Reid, A. & P. Jereb 2005. Family Sepiolidae. ''In:'' P. Jereb & C.F.E. Roper, eds. ''Cephalopods of the world. An annotated and illustrated catalogue of species known to date. Volume 1. Chambered nautiluses and sepioids (Nautilidae, Sepiidae, Sepiolidae, Sepiadariidae, Idiosepiidae and Spirulidae)''. FAO Species Catalogue for Fishery Purposes. No. 4, Vol. 1. Rome, FAO. pp. 153–203.〕 ''R. p. diegensis'' grows to 30 mm in mantle length.〔(Mantle Length of ''Rossia pacifica diegensis'' )〕 This subspecies is smaller and more delicate in structure than ''R. p. pacifica''. Relative to its mantle size, it possesses larger fins and arm suckers, the latter being predominantly arranged in two rows.〔 The type specimen was collected off California and is deposited at the National Museum of Natural History in Washington, D.C..〔(Current Classification of Recent Cephalopoda )〕 The validity of ''R. p. diegensis'' has been questioned.〔 ==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「Rossia pacifica diegensis」の詳細全文を読む スポンサード リンク
|