Bimeria pusilla 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 pusilla Fraser, 1925

? Bimeria pusilla Fraser, 1925: 168 , fig. 2.

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

Type material. CAS-IZ 21799.00: USA, California, San Francisco Estuary, San Francisco Bay , Marin County, Lime Point , 10 August 1896, specimen count 1, coll . University of California; 10% formalin.

Type locality. USA, California: San Francisco Bay, Lime Point ( Fraser 1925).

Current status. Species inquirenda (WoRMS).

Remarks. The only known type material of Bimeria pusilla , in collections at the CAS (CAS-IZ 2 1799.00), is listed as a syntype. The online database indicates a specimen count of “1”, and Fraser’s (1925) description of the species appears to have been based on a single colony. No other type material of B. pusilla was located, and the CAS specimen may be the holotype by monotypy.

The brief account of Bimeria pusilla by Fraser (1925) was based on sterile material. Although the hydroid appears to have been a bougainvilliid, it is not referable to Bimeria Wright, 1859 because the tentacles are not covered by a sheath of perisarc basally. Cairns et al. (1991, 2002) included the species in Garveia Wright, 1859 , but verification is warranted. Garveia pusilla is listed in WoRMS as a taxon inquirenda, and we agree.