1860.] Beport on some Fisles received from the Sitang Biver. 109 



dusky strise on the dorsal, nofc well defined ; tlie lower fina with one 

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



Z>. S.—A. Q—P. 7.— V. 7 .— C. 16. 



Lengfch 1\ in., by f in. deep at base of dorsal, and \ in. across base 

 of ventrals, the back much narrower. Tenasserim 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 baekward, much nearer to the tail 

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

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

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

 tinctly longer. 



P. CiNNAMOMEA. : Cobltis pangio, B. H. ; C. cinnamomea, McClel- 

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

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

 lopecl. 



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

 still further baekward, and the ventrals wanting altogetlier. The 

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

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

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

 are more minute. The spines are exceedingly Hable to be overlocked. 

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

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



A. fusca, 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 1| in. The rays of the dorsal, 

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



D. 7 or 8.—^ Q.—P. d.—C. 17. 



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

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

 remarkably narro w. Colour uniform dull brown, paler belovv. Te- 

 nasserim. 



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



