Corydendrium fruticosum Fraser, 1914a

Calder, Dale R. & Choong, Henry H. C., 2018, Names of hydroids (Cnidaria, Hydrozoa) established by Charles McLean Fraser (1872 - 1946), excluding those from Allan Hancock Expeditions, Zootaxa 4487 (1), pp. 1-83 : 9

Corydendrium fruticosum Fraser, 1914a

? Corydendrium fruticosum Fraser, 1914a: 112 , pl. 2, figs. 2Α, B.

Syntypes. BCPM 976-00163-001 : USA, Washington, Friday Harbor , July 1912 ; 60% IPA.

BCPM 976-00163-002 : USA, Washington, Friday Harbor , July 1912 ; 60% IPA.

BCPM 976-00164-001: Canada, British Columbia, Dodd Narrows, 1901; 60% IPA.

BCPM 976-00165-001: Strait of Georgia; slide.

BCPM 976-00165-002: Strait of Georgia; slide.

Lectotype, by present designation. RBCM 976-00163-003 : USA, Washington, Friday Harbor, outside Brown Island , 73–110 m, July 1912, one colony, 2.7 cm high, in fair condition, without gonophores; 70% ethanol.

Paralectotypes. BCPM 976-00163-001 : USA, Washington, Friday Harbor , July 1912 ; 60% IPA.

BCPM 976-00163-002 : USA, Washington, Friday Harbor , July 1912 ; 60% IPA.

BCPM 976-00164-001: Canada, British Columbia, Dodd Narrows, 1901; 60% IPA.

BCPM 976-00165-001: Strait of Georgia; slide (missing from slide box).

BCPM 976-00165-002: Strait of Georgia; slide.

Type locality. USA, Washington: Friday Harbor, outside Brown Island , 73–110 m ( Fraser 1914a).

Current status. Valid.

Remarks. No name-bearing types were designated by Fraser (1914a) in establishing Corydendrium fruticosum . However, syntypes of the species exist in the Fraser Hydroid Collection at the RBCM (BCPM 976- 00163-001, BCPM 976-00163-002, BCPM 976-00164-001, BCPM 976-00165-001, BCPM 976-00165-002). The lectotype designated here (RBCM 976-00163-003) is a single colony selected from specimens in BCPM 976- 00163-002. One of the syntype slides (BCPM 976-00165-002) also bears a specimen in reasonably good condition, but its collection locale, whether from British Columbia ( Canada) or Washington state ( USA), could not be determined (and see ICZN Recommendation 74E). Another syntype slide (BCPM 976-00165-001) is currently missing from its slide box.

The only certain records of Corydendrium fruticosum appear to be those of Fraser (1914a) from Friday Harbor, Washington, and from Snake Island and the Northumberland Channel near Dodd Narrows, British Columbia. Both of the latter locations are in the Strait of Georgia area near Nanaimo, BC. Later accounts of the species in his books on hydroids ( Fraser 1937a, 1947a) were almost certainly based on the original description. Hydroids identified with question as C. fruticosum were reported from waters off southern California and Baja California, Mexico, by Fraser (1948: 192).

The species is currently taken to be valid ( Cairns et al. 2002; WoRMS).