Notes on a small collection of thecate hydroids (Cnidaria: Hydrozoa) from Tristan da Cunha, south Atlantic Author Galea, Horia R. text Zootaxa 2010 2336 1 18 journal article 10.5281/zenodo.205235 58869148-c1e6-483c-9a76-0f1976cdeda9 1175-5326 205235 Silicularia rosea Meyen, 1834 ( fig. 5 D) Silicularia rosea Meyen, 1834: 204 , pl. 35 figs 1 –11. – Vervoort & Watson, 2003: 442, fig. 108A–D. Material examined. Stn. T14 , 23.ii.2005 : dense colonies, up to 5 mm high, bearing both male and female gonothecae, on Macrocystis pyrifera . Stn. T21 , 31.x.2007 : two fertile colonies (male and female), ca . 5 mm high, on Macrocystis pyrifera ( NHM 2009.26). Distribution . Previously recorded creeping on fronds of Macrocystis pyrifera from both Gough [Ritchie 1907, as S. hemisphaerica (Allman, 1888) ] and Nightingale islands (Vanhöffen 1910, as S. rosea ). This species has a circumglobal distribution in Antarctic and sub-Antarctic waters (Vervoort & Watson 2003).