Names of hydroids (Cnidaria, Hydrozoa) established by Charles McLean Fraser (1872 - 1946), excluding those from Allan Hancock Expeditions Author Calder, Dale R. Author Choong, Henry H. C. text Zootaxa 2018 2018-10-02 4487 1 1 83 journal article 29136 10.11646/zootaxa.4487.1.1 939f52d6-d58b-4a22-8aec-dd5c6a591067 1175-5326 1456161 524B23B9-8EAA-4BD6-8937-A1B8F1C057B9 Tetranema furcata Fraser, 1937a Tetranema furcata Fraser, 1937a : 193 , pl. 44, figs. 233a–e. Astrolabia furcata .— Schuchert, 1997 : 151 . Syntypes . BCPM 976-00948-001: Canada , British Columbia , Queen Charlotte Islands (=Haida Gwaii), Moresby Island, Kaison Bank, 28 July 1936 , 201 m, two colonies, labelled " type "; 60% IPA. BCPM 976-00948-002 : Canada , British Columbia , Queen Charlotte Islands (= Haida Gwaii ), Moresby Island , Kaison Bank , 28 July 1936 , one colony; slide. Lectotype , by present designation. RBCM 976-00948-003 : Canada , British Columbia , Queen Charlotte Islands (= Haida Gwaii ), Moresby Island , Kaison Bank , 201 m , 28 July 1936 , one colony, 3.3 cm high, with one gonotheca, in good condition; 70% ethanol. Paralectotypes . BCPM 976-00948-001: Canada , British Columbia , Queen Charlotte Islands (=Haida Gwaii), Moresby Island, Kaison Bank, 201 m , 28 July 1936 , one colony, 2.1 cm high, without gonothecae, in fair condition; labelled " type "; 60% IPA. BCPM 976-00948-002 : Canada , British Columbia , Queen Charlotte Islands (= Haida Gwaii ), Moresby Island , Kaison Bank , 28 July 1936 , one colony, 1.3 cm high, with one gonotheca, in good condition; slide. Type locality. Canada , British Columbia : Queen Charlotte Islands (= Haida Gwaii ), west coast of Moresby Island , Kaison Bank ( Fraser 1937a ). Current status. Valid, as Astrolabia furcata ( Fraser, 1937a ) . Remarks. Although Fraser (1937a) designated no name-bearing type for Tetranema furcata , syntype material of the species exists at the RBCM. Two colonies were represented in fluid (BCPM 976-00948-001), with the larger one, in better condition and with a gonotheca, being designated here as the lectotype of the species. It was removed to a new bottle and assigned a new catalogue number (RBCM 976-00948-003). The smaller colony, sterile and in poorer condition, was returned to the original bottle as a paralectotype (BCPM 976-00948-001). A second paralectotype specimen occurs on a microscope slide (BCPM 976-00948-002). Although the slide is broken lateral to the mount, the hydroid colony is in good condition and bears a gonotheca. The original description of Tetranema furcata by Fraser (1937a) included accounts of both its trophosome and gonosome. With Tetranema Fraser, 1937a being an invalid junior homonym of Tetranema Haeckel, 1879 , the specific name is now combined with a subjective synonym, Astrolabia Naumov, 1955 , as A. furcata . The hydroid is reportedly amphi-Pacific in distribution, with A. heterotheca Naumov, 1955 from a depth of 576 m near Astrolabe Strait, Kuril Islands, Russia , being a subjective junior synonym (Antsulevich 2015).