Bimeria tenella Fraser, 1925

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 : 11

Bimeria tenella Fraser, 1925

? Bimeria tenella Fraser, 1925: 168 , figs. 3Α, B.

Garveia tenella .— Cairns et al., 1991: 14.

Type material. CAS-IZ 21 800.00: USA, California, San Francisco Estuary, San Francisco Bay , Southampton Lt. N 10° E, Blunt Point N 65° W, Alcatraz Light S 28° W, 12 August 1912, 22.5 fm (41 m), specimen count 1, coll. USFCS Albatross; 10% formalin.

Type locality. USA, California: San Francisco Bay, several locations near the entrance (close to Southampton Light, Angel Island , and Alcatraz Island ), 16–40 m ( Fraser 1925).

Current status. Species inquirenda (WoRMS).

Remarks. Type material of Bimeria tenella exists at CAS (CAS-IZ 2 1800.00). Listed there as a syntype, the specimen count is given as “1”. No other type material is known to exist, and the CAS collection may prove to be a holotype by monotypy. The single lot of B. tenella in the Fraser Hydroid Collection at the RBCM (BCPM 976- 00177-001: Cartago Bay) is non-type material. That sample was collected from Isla Isabela, Galápagos Islands, Ecuador, during the 1934 Allan Hancock Pacific Expedition ( Fraser 1938a).

Only infertile material of Bimeria tenella was available to Fraser (1925) in describing the species. His hydroid, likely a bougainvilliid, lacked a perisarcal sheath around the bases of the tentacles and is not referable to Bimeria Wright, 1859 . The species was included in Garveia Wright, 1859 by Cairns et al. (1991, 2002). Garveia tenella is listed in WoRMS as a taxon inquirenda.