1S60.] Report on some Fishes received from the Sitang River. 169 



dusky stria? on the dorsal, not well defined ; the lower fins with one 

 or more obscure dark striae, or merely a little powdered with dusky. 



D. 8.— A. Q.—P. 7.— V. 7.— 0. 16. 



Length 2f in., by f in. deep at base of dorsal, and -§- in. across base 

 of ventrals, the back much narrower. Tenasserira provinces. 



Other forms of spined Loches will have to be discriminated ; 

 amongst which, one very distinct may be termed — 



V. — Pangio, nobis, n. g. Of uniform thickness, elongated, slender, 

 with the dorsal fin placed very far backward, much nearer to the tail 

 than to the head ; the head short, much compressed between the 

 eyes, and each nostril furnished with a short filament, additional to 

 the six labial cirri. Anterior prong of the infra-ocular spine dis- 

 tinctly longer. 



P. cnnsrAMOMEA : Cobitis pangio, B. H. ; O. cinnamomea, McClel- 

 land. This has small fins and a round tail ; but certain Indonesian 

 species affined to it have a forked tail. The ventrals are well deve- 

 loped. 



VI. — Aptta, nobis, n. g. Much like the last, but the dorsal placed 

 still further backward, and the ventrals wanting altogether. The 

 head, and the fins, smaller than in Pangio ; the former still more 

 compressed, and the same infra-ocular forked spine, and eight cirri 

 (two of which are given off from the nareal apertures), but the cirri 

 are more minute. The spines are exceedingly liable to be overlooked. 

 Dorsal placed at the commencement of the last fourth of the entire 

 length ; the anal near the tail : all the fins being small and narrow. 



A. FTJ8CA, nobis, n. s. Of three specimens of this curious fish, the 

 largest measures 1\ in. long, by \ in. deep, and \ in. broad ; head T 5 g- 

 in. : from muzzle to base of dorsal If- in. The rays of the dorsal, 

 anal, and pectoral fins are difficult to distinguish, but appear to be 



D. 7 or S.—A- Q.—P. Q.—G. 17. 



On a cursory view, the dorsal, anal, and pectoral fins might be 

 supposed each to contain two or three rays only, these fins being 

 remarkably narrow. Colour uniform dull brown, paler below. Te- 

 nasserim. 



Had it not been for the total absence of the ventral fins, this form 



