极地研究

极地研究 ›› 2007, Vol. 19 ›› Issue (1): 10-18.

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南极水域一种章鱼的形态特征及分类

刘必林;李曰嵩;陈新军;   

  • 出版日期:2007-03-30 发布日期:2007-03-30

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

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

PDF (PC)

1637

被引次数

3

摘要：

本文对我国“雪龙号”船第22次南极考察(2005/2006)时采集的一尾章鱼的形态特征进行描述与鉴定。鉴定认为,系无须亚目、蛸科(章鱼科)、爱尔斗蛸亚科Pareledone属的Parele-done turqueti种。皮肤柔软光滑,无疣突。漏斗器官VV型。中腕型,腕式为Ⅱ=Ⅲ.Ⅰ=Ⅳ。腕吸盘单列,无扩大的吸盘。腕间膜较深,腕间膜式为c=d.e.b.a。雄性右侧第三腕茎化,茎化部分(端器)具独特的舌叶和交接基结构,舌叶勺状,凹槽无横脊,交接基短。具前后唾液腺、嗉囊和墨囊。齿舌发达,由7列异形小齿组成。半鳃内外侧各具鳃小片7个。

关键词: Pareledoneturqueti;南极;形态特征;分类

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.