132 TELEOSTEI. PHJCSOSTOMI. 



139. (4.) Callichrous pabo. 



Silurus pabo, Ham. Bush. Fish. Ganges, pp. 153, 375, pi. 22, fig. 48. 

 Callichrous pabo, -Day, Fish. India, p. 477, pi. ex, fig. G (see synon.). 



B. xii. D. 5. P. 1/14. V. 9-10. A. 66-71 (3/63-66). C. 17. 



Length of head 5 to 5|, of caudal fin 8|, height of body 5 to 5.| 

 in the total length. Eyes diameter 4 to 4| in the length of the 

 head, 1^ diameters from the end of snout, and 2| apart. The 

 greatest width of the head equals its length behind the middle of the 

 eyes. The lower jaw slightly in advance of the upper ; the width of 

 the gape of the mouth equals half the length of the head. Barbels 

 the maxillary reach the hind edge of the eye or a little further ; 

 the mandibular are fine and short. Teeth in two short trans- 

 verse patches rather distant from one another in the median line. 

 Fins the dorsal situated in the commencement of the second third 

 of the length of the body. Pectoral fin as long as the head behind the 

 angle of the mouth, the spine feebly serrated (entire in Burma) 

 and half as long as the head. Ventral with ten rays in India, nine 

 in Burma. Colour silvery, with a badly marked shoulder-spot. 



I found in Burma a variety of this fish, clouded all over with 

 fine dark spots ; it had black tips to the caudal lobes, and nine 

 ventral rays. 



Hab. Jumna and Ganges rivers, also Burma. Ham. Buchanan 

 observed that it was- termed at Patna TdmbuKya pdpta, or Callichrous 

 resembling a betel-leaf. 



140. (5.) Callichrous macrophthalmus. 



Pseudosilurua macrophthalmos, Bli/th, J. A.S. P. xxix, 1800, p. 1515. 

 Callichrous macrophthalmus, Day, Fish. India, p. 478, pi. ex, figs. 2 

 & 3 (see synon.). 



B. xv. D. 4. P. 1/12-15. V. 8. A. 69-73 (2-3/66-70). C. 18. 

 Length of head 5| to 6, of caudal fin 6 to 7, height of body 5 to 6 

 in the total length. Eyes diameter 3f to 4 in the length of head, 

 1 to 1 \ diameters from end of snout, and 2 to 2 apart. The 

 greatest width of the head equals its length excluding the snout. 

 Cleft of the mouth descends to opposite the upper third of the 

 eye ; the width of the gape equals one half to four ninths of the 

 length of the head. Barbels the maxillary pair reach to opposite 

 the eighth or tenth anal ray; the mandibular are nearly one 

 half the length of the head. Teeth in a very narrow oblong 

 patch on either side of the vomer, and not continuous in the 

 median line. Fins the dorsal half as high as the body, narrow 

 (especially in Madras specimens), and situated in the commence- 

 ment of the second third of the length of the fish excluding 

 the snout. Ventrals equal 1| diameters of the eye. Anal not 

 united to the caudal, the latter deeply forked. Colour silvery, 

 a dark round shoulder-spot over the middle of the pectoral spine ; 



