OCR Text |
Show 1 8 2 MR. C. TATE REGAN ON THE [Feb. 17, T r ia c a n th u s s t r ig il if e r . Tricicanthus strigilifer Cantor, Mai. Fish. p. 363, pi. ix. (1847); Bleeker, Atlas Ichth. v. p. 89, pi. ccxxix. fig. 3 (1865); Gunther, Cat. viii. p. 211 (1870). Triacanthus longirostris Hollard, Ann. >Sci. Nat. (4) i. 1854, p. 46, pi. ii. fig. 3. Depth of body about equal to the length of head, about 3 times in the total length, length of caudal peduncle 4|-5 times. Snout very slightly concave, its length 1|-1| times in that of the head, eye-diameter 3-4 times, interorbital width 4-5 times. Interorbital space concave, without distinct median ridge. Upper edge of occipital crest in the same straight line as that of the snout; distance to base of first dorsal spine from posterior margin of eye about 1| times the eye-diameter. D. V, 20-22 ; A. 15-16 ; the first dorsal spine longer than the head, the second considerably more than bfedf as long as the first, the others much shorter; the base of the anal fin about half as long as that of the soft dorsal fin; pelvis between the ventral spines moderately broad, tapering to a point posteriorly. Membrane of spinous dorsal immaculate. Total length 185 mm. JIab. Seas of Arabia and India ; East Indian Archipelago. T r ia c a n th u s b lo c i i i . Triacanthus blochi Bleeker, Nat. Tijds. Ned. Ind. iii. 1852, p. 81 ; Atlas Ichth. v. p. 89, pi. ccxvii. fig. 1 (1865). Triacanthus biaculeatus (part.) Gunther, Cat. viii. p. 210 (1870). Depth of body about 3 times in the total length, length of head 3|-3^ times, length of caudal peduncle 4|-5^ times. Snout concave, its length 14-2 times in the length of head, eye-diameter 3-3| times, interorbital width 4-5 times.* Interorbital space concave, with median ridge scarcely, if at all, distinct. Upper edge of occipital crest forming an angle of about 160c with that of the snout; distance from posterior margin of eye to base of first dorsal spine about 1| times as long as the eye-diameter. D. V, 22-23; A. 16-17; the first dorsal spine longer than the head, the others short; length of base of anal fin 1J-14- times in that of the base of soft dorsal fin. Pelvis between ventral spines narrow, tapering to a slender point. Membrane of spinous dorsal immaculate. Total length 150 mm. IIab. East Indian Archipelago; China. T r ia c a n th u s b ia c u l e a t u s . Balistes biaculeatus Bloch, Ausl. Fische, pi. 148. fig. 2 (1785). Triacanthus biaculeatus Cuv. Regne An. ii. p. 152 (1817). Triacanthus angnstifrons Hollard, Ann. Sci, Nat. (4) i. 1854, p. 45, pi. ii. fig. 2. |