摘要
本文首次系统描述了乌贼科、枪乌贼科、微鳍乌贼科和蛸科(章鱼科)浅海性种类早期生长阶段的形态特征,并与成体的形态特征相比较。对比了浅海性头足类与大洋性头足类的早期生长阶段。发现浅海性头足类在早期生长阶段中的形态变化较小,而大洋性的头足类在早期生长阶段中的形态变化较大。表明在系统演化中,浅海性头足类已走在大洋性头足类的前面。
The present paper is devoted to description of the morphological characters during the early growth stages of Sepiidae, Loliginidae, Idiosepiidae and Octopodidae, in comparison with adults. Comparisons between the early growth stages of neritic and oceanic cephalopods indicate that the morphological characters of neritic cephalopods have less changed in the early growth stages than oceanic cephalopods. This fact suggests that the oceanic cephalopods should be more primitive than neritic cephalopods.
基金
国家自然科学基金
关键词
头足类
生长阶段
Cephalopods, Early growth stages
