Amphisbetia distans ( Lamouroux, 1816 )

Gil, Marta & Ramil, Fran, 2021, Hydroids (Cnidaria, Hydrozoa) from the Vema and Valdivia seamounts (SE Atlantic), European Journal of Taxonomy 758, pp. 49-96 : 67

Amphisbetia distans ( Lamouroux, 1816)

Dynamena distans Lamouroux, 1816: 180 , pl. 5 fig. 1.

Sertularia distans – Broch 1914: 34.

Sertularia distans – Millard 1975: 306–307, fig. 99e–h. — Ramil & Vervoort 1992: 227–228, fig. 63c.

Tridentata distans – Calder 1991: 105–107, fig. 55. — Cornelius 1995: 108–111, fig. 27.

Material examined

SOUTH ATLANTIC OCEAN • 4 colonies, 4–5 mm high (3 growing on algae, 1 of them with 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-2015-40377 , SEAFO-2015-40437 , SEAFO-2015-40768 , SEAFO-2015-40912 , LZM-UV slide R. 578 • 1 colony, without gonothecae; Vema Seamount , stn GRAB11A; 31°37′55″ S, 8°21′48″ E; 64 m depth; 1 Feb. 2015; SEAFO-2015 leg.; SEAFO-2015-40853 • 1 colony, without gonothecae; Vema Seamount , stn Dive 4; 91–95 m depth; 1 Feb. 2015; SEAFO-2015 leg.; SEAFO-2015-40661 .

Distribution

Amphisbetia distans was considered as a circumtropical species by Ramil & Vervoort (1992, as Sertularia distans ), and circumglobal by Calder (1991, as Tridentata distans ). In the southeastern Atlantic, it is known from Angola ( Broch 1914, as S. distans ), Vema Seamount ( Millard 1966, as S. distans gracilis ) and South Africa (Millard 1975, as S. distans ). Its bathymetric distribution ranges from 0 (Millard 1975; Cornelius 1995, as Tridentata distans ) to 826 m ( Ramil & Vervoort 1992).