321 



5. Ophiocephalus gachua H.B. 



Ophioccphalus gachua Hamilton Buchanan, Fishes of the Ganges, 1822, p. 68. 



Ophiocephalus aurantiactts Hamilton Buchanan, ibid. p. 69. 



Ophicephalus marginatus Cuvier & Valenciennes, Hist. nat. Poissons, VII. 1831, 



p. 411. 



Ophicephalus limbatus Cuvier & Valenciennes, ibid. tab. 201. 

 Ophicephalus cora-mota Cuvier & Valenciennes, ibid. p. 414. 

 Ophicephalus fuscus Cuvier & Valenciennes, I.e. 

 Ophicephalus aurantiacus Cuvier & Valenciennes, ibid. p. 415. 

 Ophiocephalus montanus McClelland, Calc. Journ. Nat. Hist. II. 1842, p. 583. 

 Philypnoides surakartensis Bleeker, Verh. Bat. Gen. XXII. (1848) 1849, Blenn. 



Gob. p. 19. 

 Ophicephalus marginatus Bleeker, Verh. Bat. Gen. XXIII. (1849) 1850, Doolh. 



kieuw. p. 14. 



Ophiocephahis gachua Giinther, Cat. Brit. Mus. III. 1859 1861, p. 471. 

 Ophiocephalus kelaarti Giinther, ibid. p. 472. 



Ophiocephalus gachua Kner, Fische Novara-Exp. 1865 1867, p. 233. 

 Ophiocephalus g^tachua var. malaccensis Peters, Monatsber. Akad. Wiss. Berlin, 



1868, p. 262. 

 Ophiocephalus gachua Bleeker, Atl. ichth. IX. 1877, tab. 397, fig. 4. Verh. 



Akad. Amsterdam, XIX. 1879, Poissons pharyng. labyr. p. 38. 

 Ophiocephalus gachua Day, Fishes of India 4. 1878 1888, p. 367. 

 Ophiocephalus gachua Vinciguerra, Annal. Museo Civico Geneva (2) IX. 1890, p. 185. 

 Ophiocephalus gachua Bean & Weed, Proc. U.S. Nat. Mus. XLII. 1912, p. 608. 

 Ophiocephalus gachua Sundara Raj, Record Ind. Mus. XII. Prt. VI. 1916, p. 275. 



3(3*) 

 D. 31 35; A. 21 24; P. 13 16; V. 6; L.I. 41 43; L.tr. i . 



7 



Body somewhat cylindrical anteriorly, compressed poste- 

 riorly. Height 5.5 6.5, 6.7 8.3 in length with caudal. Head 

 3.1 3.5, 4 4.3 in length with caudal. Head depressed, flat 

 above, its upper profile sloping down in a nearly straight line 

 or somewhat convex. Eye 5 (in specimen of 65 mm.) 8 (in 

 specimen of 142 mm.), in large specimens more than twice, 

 in small specimens less than twice in the interorbital space, 

 about i 1.5 in snout. Tip of snout in the horizontal through 

 middle or upper part of eye. Cleft of mouth oblique. Maxillary 

 reaching to vertical through hindborder of eye, in small speci- 

 mens not so far. Lower jaw somewhat prominent. A band of 

 small teeth in the intermaxillaries. Teeth on the palatines and 

 on the foremost part of the vomer forming a continuous biserial 

 curved band, the outer teeth smaller, the inner teeth canines 

 or caninoid. A band of small teeth, tapering laterally, in the 

 lower jaw, the most interior row consisting of caninoid or 

 canine teeth. About 5 rows of scales between eye and poste- 

 INDO-AUSTRALIAN FISHES IV. 21 



