头足类的分布特点及其区系特征

On the Distributional Peculiarities of Cephalopoda and its Faunal Features

本文以世界海域头足类的28个科及其重要种类的分布为依据,结合生境、生态和捕获状况,探讨了头足类的分布特点、分布趋向和区系特征。

Based on the distributions of twenty-eight families of Cephalopoda,and its impor- tant species in the world oceans in connection with habitat,ecology and catching situa- tions,the zoogeograpy of Cephalopoda with reference to their distributional peculiari- ties,distributional trends and faunal features are discussed in this paper.The distribu- tions of families may be divided into four patterns:the widespread distribution,the re- stricted distribution,the interrupted distribution and the peculiar distribution.The eu- ryoecid species,stenoecic species,endemic species,and cosmopolitan species are dis- cussed further.The faunas of oceanic cephalopods are divisible into five groups: epipelagic,upper mesopelagic,bathypelagic and abyssopelagic;they are characterized by living in the main depth zone.