A single micropyle in the eggs of the most basal living actinopterygian fish, Polypterus (Actinopterygii, Polypteriformes)

被引：13

作者：

Bartsch, P ^{[1
]}

Britz, R ^{[1
]}

机构：

[1] AMER MUSEUM NAT HIST,DEPT HERPETOL & ICHTHYOL,NEW YORK,NY 10024

来源：

JOURNAL OF ZOOLOGY | 1997年 / 241卷

关键词：

D O I：

10.1111/j.1469-7998.1997.tb04850.x

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

Breeding of Polyterus, the most basal living actinopterygian, provided the opportunity to study the surface structure of its eggs with SEM for the first time. The investigation; revealed the previously overlooked presence of a micropyle at the animal egg pole, thus rejecting recent textbook belief that the eggs of Polypterus lack a micropyle. Comparison with data for other gnathostomes demonstrates that eggs with a micropyle are a further synapomorphy for Actinopterygii and confirm membership of the Cladistia in that group.

引用

页码：589 / 592

页数：4