1872.] 
179 
F. Day — Monograph of Indian Cyprinidce. 
6. Botca Berdmorei. 
Syncrossus Berdmorei, Blyth, J. A. S. of Bongal, I860, p. 166. 
Botia Berdmorei, Day, Proc. Zool. Soc., 1869, p. 519. 
B. III. D. 3/9, P. 13, V. 8, A. 2/5, C. 17. 
Length of head 1/5, of caudal 1/5, height of body 1/5 of the total 
length. Eyes ; diameter 1/5 of length of head, 2 diameters from end of snout 
and apart. Suborbital spine damaged in the unique example. Barbels 
eight, j Fins ; dorsal commences midway between the snout and the posterior 
margin of the anal fin. Colours , brownish, with a leaden band along the 
side. Dorsal and caudal barred in spots. An ocellus at the upper margin 
of the base of the caudal fin. 
Sab. — Darjiling and Bengal generally. 
7. Botia histrionica. 
Blyth, J. A S. of Bongal, 1860, p. 166 j Day, Proc. Zool. Soo. 1869, p. 550. 
B. in. D. 2/8, P. 15, V. 8, A. 2/5, 0. 19. 
Length of head 1/4, of caudal 1/5, height of body 1/4 of the total length. 
Eyes ; diameter 1/5 of length of head, 2£ diameters from end of snout, 2 
diameters apart. Suborbital spine not very strong, extending to opposite 
the posterior margin of the orbit. Barbels, eight. Fins ; dorsal commences 
nearer to the caudal than to the end of the snout. Caudal forked. Colow s, 
olive, with five dark vertical bands on the body, and two or three on the 
head. All the fins with two broad brown bands. 
Sab. — Pegu. 
Genus. Jerdonla,* Day. 
Platacanthus, sp. Day. 
Body elongated, and moderately compressed. Eight barbels, two of which 
are mandibular. A free, erectile, bifid, suborbital spine. Dorsal fin long 
(twenty -seven branched rays), commencing before the centrals ; the internal 
ray of the pectoral fin modified into a fiat osseous spine ; caudal slightly 
emarginate. 
Geographical distribution. Madras Presidency. 
The single species. 
1. J erdonia maculata, D. 3/27, A. 3/6. Madras. 
1. Jerdonta macttlata. 
Platacanthus rmculatus, Day, Proc. Zool. Soc. 1867, p. 911, and 1870, p. 700. 
B. III. D. 3/27, P. 5/1, Y. 8, A. 3/6, C. 21. 
Length of head 2/11, of caudal 1/5, height of body 1/6 of the total 
Ien°-th. Eyes ; diameter 1/6 of length of head, two diameters from end of 
snout. Dorsal profile ascends to the commencement of the dorsal fin. Sub- 
orbital spine reaches to beneath the anterior third of the orbit. Scales, small, 
* This name has been also applied in Conohology and Ornithology, [Editor.] 
24 
