SILUEIDJF. 151 



third to one half higher than .the body,*its spine rather 

 anteriorly rugose, indistinctly seriated posteriorly, and as long as 

 the head excluding the snout ; the length of the base of the 

 adipose dorsal equals or exceeds that of the rayed fin, while the 

 intermediate distance is of the same length. Pectoral extends 

 rather above halfway to the ventral ; pectoral spine is stronger 

 than dorsal and half as long as the head, roughened externally, 

 denticulated internally. Ventral extending two thirds of the dis- 

 tance to the anal. Caudal deeply forked, upper lobe the longer. 

 Air-bladder large, pear-shaped, and not enclosed in bone. Colour 

 brownish along the back, silvery on the sides and beneath, a 

 round black spot at the posterior end of the base of the adipose 

 dorsal fin. 



Very closely allied to. J/. aor, and chiefly distinguished by its 

 much shorter maxillary barbels. 



Ilab. The Indus, salt-ranges of the Punjab, Jumna, and Ganges 

 certainly as low as Delhi, also the Deccan, Kistna river to its 

 termination, and Assam. This species attains a considerable size. 



158. (4.) Macrones blythii. 



Batasio affinis, Blyth, J. A. S. B. xxix, I860, p. 150 (not Bagrus 



affinis, Jerdon, 1849). 

 Macrones blythii, Day, Fish. India, p. 445 (see synon.). 



D. 1/7 | 0. P. 1/7. V. 6. A. 12 (3/9). C. 17. 



Length of head nearly 5, of pectoral fin 6, of caudal 6, height of 

 body 5 in the total length. Eyes diameter 3| in the length of 

 head, 1 diameter from end of snout and 1| apart. Snout projecting. 

 Median longitudinal groove on head indistinct, but reaching the 

 base of the occipital process, which is narrow, twice as long as wide 

 at its base, and separated from the basal bone of the dorsal fin by 

 an interneural shield. Barbels the maxillary, which are the 

 longest, only reach the anterior margin of the orbit. Teeth in an 

 uninterrupted crescentic band across the palate. Fins dorsal 

 spine moderately strong, slightly serrated posteriorly in its upper 

 fourth, and rather above half the length of the head. Pectoral 

 spine slightly longer and stronger than that of the dorsal, and 

 denticulated internally. Adipose dorsal commencing not far from 

 the hind edge of the first dorsal, while the base is a little longer 

 than that of the anal. Caudal forked, the lobes of nearly equal 

 length. Colour a dark spot on the shoulder, a second on the 

 base of the adipose dorsal fin ; body with indistinct cross bands. 



Hob. Tenasserim provim.es, whence one specimen 3'5 inches 

 long was sent to the Calcutta Museum. 



159. (5.) Macrones gnlio. (Fig. 64.) 



Pimelodus gulio, Ham. Such. Fish. Ganges, pp. 201, 379, pi. 23, 



%. GO. 



Marione.s gulio, Day, Fish. India, p. 44o, pi. xcix, fig. 2 (see synon.). 

 JVw tt-ni/ijara, Beng. ; Nyajeruny, Arracan. 



