Clarkcoma bollonsi (Farquhar, 1908)

Ophiocoma bollonsi Farquhar, 1908: 108.—Clark, H.L., 1915a: 293.—Clark, H.L., 1921: 132.—Mortensen, 1924: 120–122, fig. 9.—Mortensen, 1936: 260.—Fell, 1952: 24.—Fell, 1958: 29.—McKnight, 1967a: 305–306.

Ophiotreta valenciennesi.—Koehler, 1930: 66–67 (in part).—Clark, H.L., 1946: 187 [Non Ophiotreta valenciennesi (Lyman T, 1879); see O'Hara, 1990].

Ophiocoma canaliculata.—Madsen, 1967: 142 [Non Clarkcoma canaliculata (Lütken C F, 1869); see O'Hara, 1990].

Clarkcoma bollonsi.—Devaney, 1970: 5–9, figs. 4,5,10,12,14.—Fenwick & Horning, 1980: 440.—Rowe, 1985: 67–68, pl. 2(3–8).—O'Hara, 1990: 294.—McKnight, 1993b: 194, 199.—Rowe & Gates, 1995: 383.

Material Examined. Bay of Islands. TAN0906/60, NIWA 77840 (1); NIWA 55181 (3). TAN0906/181, NIWA 57142 (3). TAN0906/236, NIWA 57412 (4). TAN0906/240, NIWA 57509 (9); NIWA 77841 (3). East Coast North Island. TAN1108/253, NIWA 77873 (1). TAN1108/268, NIWA 77809 (4); NIWA 77872 (3). Far North. TAN0906/152, NIWA 56473 (1). TAN0906/162, NIWA 56715 (1); NIWA 77853 (1). North Canterbury. TAN1108/5, NIWA 74009 (2). TAN1108/24, NIWA 74170 (1). Otago. TAN1108/53, NIWA 74260 (3). TAN1108/ 66, NIWA 77805 (20). TAN1108/108, NIWA 74665 (2). TAN1108/117, NIWA 74739 (8). TAN1108/122, NIWA 74812 (23). TAN1108/131, NIWA 74858 (1). TAN1108/138, NIWA 74913 (6). TAN1108/148, NIWA 74794 (10). Stewart Island. TAN1108/77, NIWA 77799 (1); NIWA 77874 (1). TAN1108/96, NIWA 74592 (9). TAN1108/102, NIWA 74630 (4). Three Kings Islands. TAN1105/35, NIWA 77871 (1). TAN1105/53, NIWA 77870 (1). West Coast North Island. TAN1105/104, NIWA 77864 (1). TAN1105/115, NIWA 73740 (2).

Diagnosis. Disc plates covered in small rounded granules, occasionally elongated near arm base, absent from proximal ventral disc area. Seven thin, flattened arm spines, middle 3–4 longest (as long as 4 arm segments) sometimes with thickened club on end of spine, spines decreasing in length ventrally. Adoral shields meet proximally to oral shield. Two leaf-like tentacle scales throughout arm. Disc, arms and arm spines dark red when live, pale grey or brown when preserved.

Description. See Mortensen (1924).

Distribution. New Zealand (1–366 m), Gascoyne Seamount (143 m), southern Australia (9–630 m).