南海浮游被囊动物火体虫科（Pyrosomatidae）一新记录种的形态特征

摘要

The family Pyrosomatidae,with 8 species in the world oceans,belongs to phylum Chordata,subphylum Urochordata,class Thaliacea and order Pyrosomida.A new recorded species Pyrosomella verticillata (Neumann, 1909)of Pyrosomatidae from the South China Sea was reported in this paper.A detail description and illustration of this new recorded species and the morphological differences between the Pyrosomella verticillata and Pyrosoma atlanticum were provided.The relationships between length and width,and length and the number of verticals of Pyrosomella verticillata colonies were analyzed.The specimens examined were deposited in Marine Biodiversity Collection of South China Sea.%火体虫科（Pyrosomatidae），隶属于脊索动物门、尾索动物亚门、海樽纲、磷海樽目，全球海域已报道8种。本文描述了采自南海火体虫科一新记录种短轮火体虫（Pyrosomella verticillata ）群体和单体的形态特征，分析了其群体长度、宽度与轮数的关系，并比较了该种与已在南海发现的大西洋火体虫（Pyrosoma atlanticum）的形态差异。研究标本保存在南海海洋生物标本馆。