A new family of copepods associated with ascidiaceans in the White Sea, and an analysis of antennulary segmentation and setation patterns in the order Poecilostomatoida

被引：0

作者：

Marchenkov, AV ^{[1
]}

Boxshall, GA ^{[1
]}

机构：

[1] NAT HIST MUSEUM,DEPT ZOOL,LONDON SW7 5BD,ENGLAND

来源：

ZOOLOGISCHER ANZEIGER | 1995年 / 234卷 / 02期

关键词：

copepoda; parasites; intramolgidae; ascidiacean hosts;

D O I：

暂无

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

A new genus and species, Intramolgus arcticus, of parasitic copepod is described from ascidiacean hosts in the White Sea. The new genus represents a new family of the order Poecilostomatoida. This family is characterised particularly by the sexual dimorphism of the antennules, by the plesiomorphic mandible and by the apomorphic fifth legs. The numbers and distribution patterns of aesthetascs on male antennules in key poecilostomatoid genera and families are compared in detail. This analysis reveals that a total of 10 aesthetascs is expressed within the order although nine is the maximum found in any known genus. A modified system of antennulary segmental homologies is proposed for the Poecilostomatoida, based on a 9-segmented antennule.

引用

页码：133 / 143

页数：11