Calcigorgia simushiri sp. nov.

urn:lsid:zoobank.org:act:2 F87071 C-526E-4770-AE7D-ABC 45DEC 0828

Figs 6–13; Table 1

Diagnosis

Polyps remote from each other, arranged irregularly on the surface of the branch, in alcohol preserved material 5–10 mm high and 4 mm wide. Polyp body wall cylindrical in shape and with smooth surface. Sclerites are unordered in the tentacles, the body wall and the coenenchyme.

Polyp tentacles contain: (1) warty clubs, up to 0.28 mm long; (2) club-like spindles, up to 0.3 mm long; and (3) spindles up to 0.4 mm long. The polyp body wall contains (1) warty clubs, up to 0.28 mm long; (2) club-like spindles, up to 0.4 mm long; (3) capstans and ovals, up to 0.15 mm long; and (4) spindles up to 0.4 mm long. The outer layer of coenenchyme densely filled with capstans and ovals, up to 0.15 mm long, and may contain warty spindles up to 0.19 mm long.

Etymology

The specific epithet is for Simushir Island (Kurile Islands, Sea of Okhotsk), nearest to the locality where the holotype was found.

Type material

Holotype

KURILE ISLANDS: 120 × 84 mm, expedition of PFRC and ZIN RAS on RV “Tikhookeansky”, east of Simushir Is., 46°46′41″ N, 151°55′23″ E, 200 m, dredged, 16 Aug. 1987, S. Grebelnyi leg. (MIMB 20721).

Paratype KURILE ISLANDS: 1 specimen, 70 × 22 mm, expedition of PFRC and ZIN RAS on RV “Tikhookeansky”, Iturup Is., V. Lukin coll., 45°09′40″ N, 148°52′21″ E, 400 m, dredged, 29 Sep. 1987 (MIMB 20703) .

Additional material

three specimens were collected near Kurile Islands and stored in MIMB

KURILE ISLANDS: 1 specimen, Rikord Str., cruise of RV “Akademik Oparin”, 47°25′ N, 152°42′ E, 140–166 m, dredged, 1 Jul. 1988 (MIMB 20697); 1 specimen, Matua Is., cruise on RV “Tikhookeansky”, station 306, sample 895, 48°01′ N, 153°22′ E, 100 m, 18 Aug. 1987 (MIMB 20725); 1 specimen, Rasshua Is., cruise on RV “Tikhookeansky”, station 300, sample 877, 48°01′ N, 153°22′ E, 100 m, 12 Aug. 1987 (MIMB 20726).