1867.] MR. F. DAY ON INDIAN FISHES. 563 



some specimens there are three bands on the head, and those in the 

 anterior part of the body divide into two at their lower halves. 

 Hab. Madras. 



Genus Gogrius. 



Branchiostegals seven. Opercular bones with moveable articula- 

 tions. Bones on summit of head granulated and covered with thin 

 skin. Mouth wide, anterior ; upper jaw mostly the longest. Two 

 pairs of cirri, the maxillary thin, the mandibular wide apart. Nos- 

 trils approximating, the posterior provided with a valve. Eyes not 

 covered by skin. Teeth in jaws slightly villiform anteriorly, but 

 posteriorly molars with more or less large rounded crowns ; on the 

 palate also molars with globular crowns, placed in two widely sepa- 

 rated patches, converging anteriorly. Two dorsals : the first with a 

 strong serrated spine and seven rays, and placed before the ventral ; 

 second dorsal adipose and small. Pectoral spine strong, serrated on 

 both edges. Caudal forked. Air-bladder present. 



Gogrius sykesii. 



Pimelodus gogra, Sykes. 



B. viii. D. g|0. P. 1/9. V. 6. A. 12. C. 17. 



Length of head \, of pectoral ^, of base of first dorsal ^, of base 

 of adipose dorsal ^, of base of anal ^^, of caudal ^ of the total length. 

 Height of head \, of body ^, of first dorsal i, of adipose dorsal Jj, 

 of ventral \, of anal \ of the total length. 



Eye. Situated slightly above the level of the cleft of the mouth, 

 directed rather upwards and outwards, transversely oval, and its 

 transverse diameter f of length of head ; eyes 1 1 transverse diameter 

 apart, 1 3 from end of snout. 



Body stout ; cheeks puffed out. The dorsal profile more convex 

 than that of the abdomen, which last is almost straight. There is a 

 considerable rise from the snout to the commencement of the dorsal fin. 



Summit of head rather compressed, whilst the snout appears to be 

 slightly produced, and the upper jaw the longest. Gape of mouth 

 wide, and equal to twice the extent of the cleft, which last does not 

 reach to beneath the anterior margin of the orbit. Snout rather 

 pointed. The intermaxillaries do not extend the whole width of the 

 gape. A shallow longitudinal groove exists between the orbits, only 

 extending one-third of the distance to the base of the occipital pro- 

 cess, which is roughened and of equal width, which is scarcely equal 

 to half its length, whilst it embraces the basal bone of the dorsal fin, 

 which is roughened and of a V-shape. Nostrils midway between 

 orbits and end of snout ; they approximate, and are not furnished 

 with a cirrus. Maxillary cirrus thin and extending to the base of the 

 pectoral fin. Mandibular cirrus wide apart from that on the oppo- 

 site side, commencing under the vertical from the anterior margin 

 of the orbit, and reaching to beneath the root of the pectoral fin. 

 Branchial membranes of the two sides coalesce in a wide band of skin, 

 which is not confluent with that of the isthmus. 



