白氏文昌鱼(Branchiostoma belcheri)解剖结构名称的探讨

Re-discussion on the Labels of the Anatomic Structure of Branchiostoma Belcheri

白氏文昌鱼一直以来在动物学教学中作为头索动物的代表动物被详细介绍,终生具有脊索动物的3个主要特征即脊索、背神经管和咽鳃裂,而且都表现得很典型。广泛使用的《普通动物学》教科书中图示的白氏文昌鱼的"背神经管"、"肝盲囊"的名称标注需要重新讨论,在教科书中它们分别被标注为"神经索"和"肝"。

Branchiostoma belcheri has been introduced in textbooks as a representative of subphylum cephalochordate because it has three typical features of phylum Chordata, i.e. cotochord, dorsal tubular nervecord and pharyngeal gill slites. The labels of ＂dorsal tubular nerve cord＂ and ＂hepatic diverticulum＂, which have been labeled as ＂nerve cord＂ and ＂liver＂ in Figure 14-7 and 14-9 in the textbook need to be re-discussed.