Sertularella areyi Nutting, 1904

Gil, Marta & Ramil, Fran, 2021, Hydroids (Cnidaria, Hydrozoa) from the Vema and Valdivia seamounts (SE Atlantic), European Journal of Taxonomy 758, pp. 49-96 : 68

Sertularella areyi Nutting, 1904

Fig. 4C ; Table 8

Sertularella areyi Nutting, 1904: 83 , pl. 17 fig. 6.

Sertularella annulaventricosa Millard, 1975: 279 –281 , fig 91F –H.

Sertularella areyi – Vervoort 1993: 201–203, fig. 41c–g. — Vervoort & Watson 2003: 156–158, fig. 35f–i. — Calder 2013: 28–29 , fig. 8h.

Material examined

SOUTH ATLANTIC OCEAN • 5 colonies, up to 5 mm high (2 growing on algae), all 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-2015-40407 , SEAFO-2015-40513 , SEAFO-2015-40768 , SEAFO-2015-40798 , SEAFO-2015-40882 , LZM-UV slide R. 585 .

Distribution

Sertularella areyi is considered as a circumtropical species ( Calder 2013). It was reported from the east coast of South Africa by Millard (1975, as Sertularella annulaventricosa Mulder & Trebilcock, 1915 ), but not from the west coast. Our record from Vema Seamount is the first one in the South Atlantic Ocean. The bathymetric distribution ranges from 47 (Millard 1975, as S. annulaventricosa ) to a depth of 480 m ( Vervoort 1993).

Figures

Fig. 4. A. Clytia gigantea (Hincks, 1866), portion of colony with three hydrothecae. B. Amphisbetia minima (Thompson, 1879), portion of hydrocladia with hydrothecae and basal gonotheca.C. Sertularella areyi Nutting, 1904, part of hydrocladia with hydrothecae. D. Sertularella polyzonias (Linnaeus, 1758), part of hydrocladia with hydrotheca and one gonotheca. E. Sertularella patagonica (d’ Orbigny, 1846), part of hydrocladia with hydrothecae.