Sertularella albida Kirchenpauer, 1884

Choong, Henry H. C., 2015, Hydroids of the genus Sertularella (Cnidaria: Hydrozoa: Sertulariidae) from the Pacific coast of Canada in the collection of the Royal Ontario Museum, with descriptions of four new species, Zootaxa 3925 (3), pp. 387-408 : 389-390

Sertularella albida Kirchenpauer, 1884

( Figure 1 )

Sertularella robusta Clark, 1877: 225 , pl. 13, figs. 32–33 [not Sertularella robusta Coughtrey 1876: 300 ]. Sertularella albida Kirchenpauer, 1884: 42 .— Nutting, 1904: 86, pl. 19, figs. 1–2.— Linko, 1912: 116.— Fraser, 1937: 151, pl. 33, fig. 176.—Naumov, 1969: 375, fig. 239.

Material. CANADA: British Columbia. 54˚07’00”N, 132˚06’42”W, 0 4. v.1961, 18.3 meters. Hydrocauli, branches, without gonothecae, ROMIZ B4027.

Reported distribution. North of the Sea of Japan in the Tartar Strait (=Strait of Tartary, Russia) (Naumov 1969); across the Bering Sea from Kamchatka to the Schumagin (=Shumagin) Islands ( Kirchenpauer 1884). Northeastern Pacific: Alaskan coast ( Clark 1877); Queen Charlotte Islands (=Haida Gwaii), western portion of Houston-Stewart Channel ( Fraser 1936b; 1937); as far south as Matia and Waldron islands, San Juan archipelago ( Fraser 1914).

Remarks. This species was originally described as Sertularella robusta from the Aleutian Islands, Alaska by Clark (1877). That binomen is a permanently invalid junior primary homonym of S. robusta Coughtrey, 1876 ( Calder & Stephens 1997) . Kirchenpauer (1884) proposed the valid current name of the taxon, S. albida .

Figures

FIGURE 1. Sertularella albida, ROMIZ B 4027: (A) Branch showing hydrothecae on branchlets and internodes; (B) close-up of branchlet showing the characteristic deeply immersed and alternating hydrothecae. Scale bars equal 1.0 mm.