Terebellides ginkgo, Schüller & Hutchings, 2012

Schüller, M. & Hutchings, P. A., 2012, New species of Terebellides (Polychaeta: Trichobranchidae) indicate long-distance dispersal between western South Atlantic deep-sea basins, Zootaxa 3254, pp. 1-31 : 7

Terebellides ginkgo sp. n.

Figs 3–6

Etymology: The species is named after the Ginkgo tree, as its expanded lower lip resembles the leaf of a ginkgo in its shape.

Diagnosis: The species can be recognized by its expanded and fleshy tentacular membrane bearing only short, simple tentacles, the greatly enlarged foliose lower lip with a mid-anterior notch, as well as the fleshy prominent third segment with its longitudinal folds. Also, the pygidium bears two prominent lateral papillae.

Holotype: Diva 3; st 604; EBS; 03°57.67'S, 28°05.36'W, 5179.8 m (start trawl) to 03°57.68'S, 28°05.28'W, ~ 5220 m (gear off ground); 05.08.2009; Brazil Basin (ZMH-25942)

Paratypes: Diva 3; st 604; EBS; 03°57.67'S, 28°05.36'W, 5179.8 m (start trawl) to 03°57.68'S, 28°05.28'W, ~ 5220 m (gear off ground); 05.08.2009; Brazil Basin (5 specimens, AM W37758, AM W37830-32 , 16.187 , AM W37817.001 [SEM]) Diva 3; st 561; EBS; 26°34.78'S, 35°13.90'W, 4484.4 m (start trawl) to 26°34.96'S, 35°13.89'W, 4493.0 m (gear off ground); 23.07.2009; NW off Rio Grande Rise (6 specimens, AM W37818.001 [SEM], AM W35523-25 , ZMH-25941, ZMH-25942) Diva 3; st 605; EBS; 3°57.49'S, 28°4.67'W, 5188.5 m (start trawl) to 3°57.54'S, 28°4.51'W, 5184.8 m (gear off ground); 06.08.2009; Brazil Basin (9 specimens, AM W37833- 38 , AM W35526, ZMH-25943, ZMH-25944) Diva 3; st 609; EBS; 3°57.54'S, 28°3.07'W, 5170.4 m (start trawl) to 3°57.58'S, 28°2.94'W, 5171.2m (gear off ground); 06.08.2009; Brazil Basin (2 specimens, ZMH-25945, ZMH- 25946)

Additional material: Diva 3; st 524; GKG; 35°59.24'S, 49°0.93'W, 4606.6 m (gear at sea bottom); 13.07.2009; Argentine Basin (1 specimen, ZMH-25936) Diva 3; st 532; EBS; 35°59.16'S, 49°0.75'W, 4605.4 m (start trawl) to 35°59.24'S, 49°0.86'W, 4605.2m (gear off ground); 15.07.2009; Argentine Basin (1 specimen, ZMH-25937)

Diva 3; st 547; GKG; 26°34.03'S, 35°13.21'W, 4487.9 m (gear at sea bottom); 21.07.2009; NW off Rio Grande Rise (1 specimen, ZMH-25938) Diva 3; st 554; EBS; 26°34.70'S, 35°12.79'W, 4484.7 m (start trawl) to 26°34.87'S, 35°12.79'W, 4477.0 m (gear off ground); 22.07.2009; NW off Rio Grande Rise (1 specimen, ZMH- 25939)