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''Promachoteuthis sloani'' is a species of squid from the northern Atlantic Ocean. It is known from only three specimens and very little is understood of its biology.〔 ''P. sloani'' is characterised by several morphological features: nuchal fusion is absent between the head and mantle, the arms generally bear 3-4 series of suckers, and papillae are present on the tentacles.〔Young, R.E., M. Vecchione & U. Piatkowski 2006. (''Promachoteuthis sloani'', a new species of the squid family Promachoteuthidae (Mollusca: Cephalopoda) ). ''Proceedings of the Biological Society of Washington'' 119(2): 287–292.〕 The holotype is an immature female of 58 mm mantle length (ML) in near-perfect condition. It was caught by R/V G.O. SARS in 2004 at . The paratype, also an immature female, is larger at 102 mm ML. It was caught by R/V ''Walther Herwig'' in 1973 at . Both were trawled in nets that fished to depths greater than 2,650 m.〔 ==References== *Toll, R.B. 1982. The comparative morphology of the gladius in the Order Teuthoidea (Mollusca: Cephalopoda) in relation to systematics and phylogeny. Ph.D. dissertation, University of Miami, 390 pp. *Voss, N.A. 1992. Family Promachoteuthidae. ''Smithsonian Contributions to Zoology'' 513: 183–185. *Toll, R.B. 1998. The gladius in teuthoid systematics. ''Smithson. Contr. Zool.'' 586: 55–68. 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「Promachoteuthis sloani」の詳細全文を読む スポンサード リンク
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