On Rearing the Hydroid Zanclea Implexa (Alder) and its Medusa Zanclea Gemmosa McCrady, with a Review of the Genus Zanclea

Abstract

Descriptions of the hydroid Zanclea implexa (Alder) in British waters have been given by the following authors, Alder (1857, as Tubularia implexa and Coryne pelagica), Allman (1859, as Coryne Briareus), Strethill Wright (1859) and Alder (1862 as Coryne implexa), Allman (1864 as Zanclea implexa and 1872 as Gemmaria implexa) and Hincks (1872, as Zanclea (Gemmaria) implexa). All these descriptions have been based upon full grown colonies in which the hydranths had a perisarc on the hydrocaulus.