THE PISHES OE MALABAR. 



1ST 



B. vi. (?) D. 1 | 0. A. 12. 



Eyes — Diameter -| of length of Load, 1 diameter apart. 



Front of mouth rouuded, Upper surface of head granulated, and twice as long as wide. 

 Occipital process long, straight, and extending halfway to the base of the dorsal. Maxillary cirri 



pass the anal. 



Fins — Fi rs t dorsal pointed, higher than the body : the adipose dorsal equals the anal in its 



length. Lobes of caudal pointed, the superior the longest. 



Colours — Grey above, silvery on the sides and white beneath. The dorsal black at its base, 

 and superiorly ; the other fins blackish. Ventrals fawn colour, with white edges. 



Grows to three inches in length. 



Habitat — Rivers and fresh waters of Malabar. 



Genus HYPSELOBAGRUS, Bleeher. 



Macrones, pt. Dumeril. 



Branchiostegals, from eight to ten. Head conical, compressed. Opercular bones articulated and move- 

 able. The occipital process which is rugose touches the basal bone of the dorsal fin, or should there be an 

 intermediate shield they articulate one with the other, and there is no intermediate free space. Back 

 compressed. Eyes free with subvertical lids. Mouth anterior. Cirri eight, one pair to posterior nasal 

 orifice which is some distance apart from the anterior which is tubular ; one pair to masillaries : and 

 two pairs to mandibular Teeth in both jaws sharp and iu many rows, those on the vomer and palate 

 villiform and continuous in one semilunar band. Dorsal inserted before ventral, with a sharp serrated 

 spine and seven rays : adipose dorsal in length equal to, or of greater extent than the anal which is 

 short. Pectoral spine denticulated. Caudal bilobed. Interbranchial membrane deeply cleft. Air bladder 

 present. 



HYPSELOBAGRUS AEMATUS. 



Macrones armatus, Day, Pro. Zool. Soc. 1865, p. 289. 



B. ix-x. D. \ | 0. P. i. V. 6. A. 11-12. C. 15. 



Length of head above \, of pectoral \, of caudal \, of base of dorsal \, of base of adipose 

 dorsal \, of base of anal \ of total length. Height of head ), of body \, of first dorsal \, of anal \ 



of total length. 



Eyes— Transversely oval : horizontal diameter f , vertical diameter \ of length of head, ¥ of a 

 horizontal diameter apart, \ a diameter from end of snout. 



Head compressed, a gradual rise from snout to first dorsal. Upper jaw the longest over- 

 lapping the lower, the cleft of the mouth hardly exceeds one-fourth of its gape, and does not 

 extend posteriorly so far as the anterior margin of the orbit, the inferior surface of 

 the intermaxillaries is on a level with the lower margin of the orbit. Upper surface of 

 head rugose with a central longitudinal groove extending nearly but not quite to the 

 base of the occipital process which is rugose. The occipital process (including its 

 second bone) is three times as long as wide, the second bone is closely articulated to it 

 and also touches the basal bone of the dorsal fin. The nostrils are wide apart, the 

 posterior having a cirrus. The nasal cirri extend to as far as the posterior margin of the orbit : the 



2 b 2 



