163 



not being confluent with the skin of the isthmus, and notched as 

 far as the chin. Mouth of moderate size, anterior, the upper jaw 

 the longer. Nostrils distant one from the other. Barbels con- 

 sisting of a short maxillary pair, and either two pairs or none on 

 the mandible. Teeth villiform in both jaws, and in an uninter- 

 rupted band across the palate. One spine and six rays in the first 

 dorsal; adipose h'n present, it and the anal of moderate length. 

 Ventral with six rays, situated behind the base of the dorsal ; 

 caudal forked. Air-bladder not enclosed in bone. 



GeoyrapJiical Distribution. Eastern Bengal, Assam and Burma, 

 to the Malay Archipelago. 



* Synopsis of Indian Species. 



A. 16. A dark shoulder-mark. Body with short 



vertical dark marks. 3 pairs of barbels. ... 1. L. rama, p. 163. 

 A. 11. Two black blotches on the lateral line. A 



pair of maxillury barbels only 2. L.flnviatilis, p. 164. 



173. (1.) Liocassis rama. (Fig. 65.) 



Pimelodus rama, Ham. Such. Fish. Ganges, pp. 176, 377, pi. 3, 



fig. 55. 

 Leiocassis rama, Day, Fish. India, p. 451, pi. cxv, fig. 2 (see synon.). 



B. vi. D. 1/6 | 0. P. 1/9.' V. 6. A. 16 (3/13). C. 18. 

 Length of head 4 to 4, of caudal fin 4|, height of body 4| to 5 

 in the total length. Eyes subcutaneous, diameter 3 to 3| in the 

 length of the head, 1 diameter from the end of the snout, and also 

 apart. The greatest width of the head equal to its length excluding 

 the snout. There is a considerable rise in the dorsal profile to the 

 base of the rayed fin. Upper jaw the longer. Upper surface of 



Fig. 65. Liocassis rama, 



the head covered with skin ; a rather wide median longitudinal 

 groove extends up the first third of the occipilal process, which 

 is twice as longns \\kle at its base, and a distinct oval interneural 



M2 



