ADVANCES IN POLAR SCIENCE ›› 2007, Vol. 19 ›› Issue (1): 10-18.

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MORPHOLOGIC CHARACTERISTIC AND CLASSIFICATION DESCRIPTION OF ONE SPECIES OCTOPODIDAE IN ANTARCTIC WATERS

  

  • Online:2007-03-30 Published:2007-03-30

Abstract:

Morphologic characteristic and classification description of Pareledone turqueti collected by XUE-LONG vessel during the 22nd CHINARE(2005/2006) in the Antarctic waters.The results indicated that this species belongs to suborder Incirrina,Family Octopodidae,Subfamily Eledoninae,Genus Pareledone,Pareledone turqueti.It is characterized by having soft and smooth skin without papillae,funnel organ VV-shape,crop,ink sac,anterior and posterior salivary gland present,developed radulae with 7 small heterodont teeth,gills with 7 lamellae on the inner and outer demibranch respectively.Arms moderate with uniserial suckers no enlarged,arm formula is Ⅱ=Ⅲ.Ⅰ=Ⅳ,web formula is c=d.e.b.a.In males the third right arm is hectocotylized,copulatory organ with clearly differentiated ligulae and calamus,ligulae spoon-shape without marked transverse ridges and calamus small.