Epitokous

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Epitokous

 

abrupt changes in the body structure of many creeping worms of the class Polychaeta. Epitokous occurs in the period of sexual reproduction, when the worms become adapted to swimming. It sometimes involves only those parts of the body containing eggs or sperm, usually the posterior segments. As a result there is a sharp division of the body into a sexless anterior section, or atoke, and a sexual posterior section, or epitoke. The latter usually detaches and swims independently, dispersing eggs or sperm.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
lucipeta based upon some atokous and epitokous specimens collected in Southern Angola.
Epitokous or schizogenic metamorphosis has never been observed in this population.
Morphogenesis of epitokous setae during normal and induced metamorphosis in the polychaete annelid Nereis grubei.
Placement of these specimens in this genus is dubious since they have slender notoseate, suggesting that all of them are epitokous forms.