The atokous-epitokous border is determined before the onset of heteronereid development in Platynereis dumerilii (Annelida, Polychaeta)

Abstract

In most nereids sexual maturation is accompanied by a dramatic reorganization of the body that enables swarming of the formerly benthic worms. However, a border exists between unchanged anterior (atokous) and metamorphosed posterior (epitokous) segments. The site of this atokous-epitokous border (a/e border) is different in sexually mature males and females… (More)
DOI: 10.1007/BF00376367

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