Larval development of brachiopod Coptothyris grayi (Davidson, 1852) (Brachiopoda, Rhynchonelliformea)статья
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Дата последнего поиска статьи во внешних источниках: 11 марта 2017 г.
Аннотация:The larval development of the Brachiopod Coptothyris grayi (Davidson, 1852) from the Sea of Japan is described for the first time. Ciliated blastula proved to represent the first free-swimming stage. The blastopore is initially formed as a rounded hole stretching later along the anteroposterior axis. The larva is first divided into two lobes (the apical lobe and the trunk); the mantle lobe is formed later as two lateral folds. Two pairs of seta bundles appear in the late larvae. The apical larval lobe is supposed to match the pre-oral lobe in
brachiopods and the trunk anterior part with tentacles in phoronids.