de Buen (1960)は本種をチリで3亜種に分けた:S. o. darwini (Cramer)-北部チリ,S. o. oculatus Cuvier-中部チリ,S. o. chilensis Steindachner-南部チリ。
(中村 泉)
Material examined:
9 from Argentina (205.9-301.8 mm SL), 10 from Chile (179.0-312.2 mm SL), FAKU 43239, AP 762-769; CP 56, 285, 287, 393, 396, 398, 400, 452, 453, 903.
Description:
D ]U, 12-14; A V, 6-7; P1 17-19; P2 T, 5; GR 7-10+1+19-21=28-32; BR 7; LLS 50-66.
HL 38.7-42.5% of SL; ED 7.5-9.0; BD 32.3-37.2; SN 10.0-11.5; IO 5.8-7.1; UJ 19.1-20.6; CP 9.2-10.5; P1L 23.8-31.0; P2L 20.4-22.8; D1H 11.9-15.0; D2H 12.4-15.9; A 15.4-19.6.
Body elongate and compressed. Head large, about 2.3-2.5 times in SL. Snout moderate, larger than eye diameter. Eye large, 4.5-5.0 times in HL. Two nostrils, anterior one with pailla. Mouth large, end of maxilla extending to below posterior margin of orbit. Villiform teeth in bands on both jaws, palatines and vomer. A pair of small projections with minute teeth on anterior part of upper jaw. Vomerine tooth band forms V-shape. One nasal spine, 1 preocular spine, 1 supraocular spine, 1 postocular spine, 1 tympanic spine, 1 parietal spine, 2 humeral spines, 5 preopercular spines and 2 opercular spines present. Pseudobranchiae present. Gill-rakers well developed. Small ctenoid scales on body, head, opercle and maxilla. Dorsal and anal spines strong and pungent. Pectoral fin large, round with 8-9 unbranched rays on lower side, its posterior end reaching above anus. Anus situated at midbody between tip of pelvic fin and anal fin origin. Anal fin origin situated below second and third dorsal fin rays. Single lateral line running from upper insertion of opercle to caudal fin base. Five dark blotches on dorsal part of body. Four to five spots on lateral part of body.
Distribution:
Both Chilean and Argentine Patagonia.
Remarks:
Three subspecies, S. o. darwini (Cramer) from northem Chile, S. o. oculatus Cuvier from central Chile and S. o. chilensis Steindachner from southern Chile, were recognized by de Buen (1960).
(Izumi NAKAMURA)
Distribution of Sebastes oculatus in Patagonia.
Head with opercular (1) and preopercular (2) spines.