Sertularia Gayi Lamouroux, 1821: 12 Sertularella gayi Notes on a small collection of thecate hydroids (Cnidaria: Hydrozoa) from Tristan da Cunha, south Atlantic Galea, Horia R. Zootaxa 2010 2336 1 18 Lamouroux, 1821 Lamouroux 1821 [151,599,935,961] Hydrozoa Sertulariidae Sertularella Animalia Leptothecata 9 10 Cnidaria species gayi    Sertularia GayiLamouroux, 1821: 12, pl. 66 figs 8–9.   Sertularella gayi– Ramil et al., 1992: 496, figs 1A, 2–3. – Cornelius, 1995b: 71, fig. 16.   Material examined. Stn. T10, 15.ii.2005: one sterile colony, 5.5 cm high, with polysiphonic stem. Stn. T19, 07.iii. 2005: one fragmentary colony, 6.5 cm high, polysiphonic basally, and a large, polysiphonic colony, 11 cmhigh ( NHM2009.21), both sterile.   Distribution. Sterile specimens of this species, from off Gough Island (depth 183 m), were previously collected by the S.Y.  Scotia(Ritchie 1907). This species is widely distributed in the Atlantic, though absent from Antarctic waters; also present in the northern Pacific (Vervoort & Watson 2003).