Hydroids (Cnidaria, Hydrozoa) from the Vema and Valdivia seamounts (SE Atlantic) Author Gil, Marta FFF187EB-84CE-4A54-9A01-4E4326B5CD26 Vigo - Centro de Investigación Mariña, Facultade de Ciencias do Mar, Universidade de Vigo, Spain. & Instituto Español de Oceanografía, Centro Oceanográfico de Vigo, Spain. martag@uvigo.es Author Ramil, Fran 67BAF0B6-E4D5-4A2D-8C03-D2D40D522196 Vigo - Centro de Investigación Mariña, Facultade de Ciencias do Mar, Universidade de Vigo, Spain. framil@uvigo.es text European Journal of Taxonomy 2021 2021-07-07 758 49 96 http://dx.doi.org/10.5852/ejt.2021.758.1425 journal article 10.5852/ejt.2021.758.1425 604af154-8d8e-4fa4-8492-44181607a659 2118-9773 5088125 7CA6D8AC-2312-47F9-8C17-528B94E4C8A7 Sertularella arbuscula ( Lamouroux, 1816 ) Table 9 Sertularia arbuscula Lamouroux, 1816: 191–192 , pl. 5 fig. 4. Sertularella crassipes Allman, 1886: 133–134 , pl. 8 figs 4–5. Sertularella arbuscula – Millard 1975: 281–282, fig. 91j–l . Material examined SOUTH ATLANTIC OCEAN • 2 colonies , up to 31 mm high, without gonothecae; Vema Seamount , stn PT4; 31°39′43″–31°38′10″ S, 8°22′37″–8°23′42″ E; 50–108 m depth; 31 Jan. 2015 ; SEAFO-2015 leg.; SEAFO-2015-40093 , SEAFO-2015-40123 • 2 colonies , up to 40 mm high growing on algae, without gonothecae; Vema Seamount , stn BT5; 31°37′16″–31°36′58″ S, 8°22′37″–8°23′06″ E; 71–94 m depth ; 31 Jan. 2015 ; SEAFO-2015 leg.; SEAFO-2015-40527 , SEAFO-2015-40768 , LZM-UV slide R. 588 • 1 colony , 30 mm high, growing on bryozoan, with gonothecae; Valdivia Seamount , stn PT10; 25°36′54″–25°37′26″ S, 6°12′40″–6°11′31″ E; 476–707 m depth; 5 Feb. 2015 ; SEAFO-2015 leg.; SEAFO-2015-40414 . Distribution This species has been previously recorded from the Australasian Seas, Indian Ocean, South Africa and Vema Seamount, from the littoral zone to a depth of 219 m (Millard 1966, 1975). Our records from Valdivia Bank, between 476 and 707 m, represent the deepest known localities for this species.