18 F. Day — Monogrcvpli of Indian Cyprinidoe. [No. 1, 



diameter from end of snout, 1\ diameters apart. Abdominal profile more 

 convex than the dorsal one. Lower jaw anterior, with a slight knob at its 

 extremity ; a pair of short rostral barbels, and sometimes rudimentary maxil- 

 lary ones. — Teeth : pharyngeal, crooked, pointed, 5, 4, 2/2, 4, 5. — Fins : dorsal 

 commences midway between the end of the snout and the middle of the 

 caudal fin, it extends to above the fourth or fifth anal ray. Caudal emarginate 

 in its last foiu-th. — Lateral line : curves downwards in the pectoral region. — 

 Colours : back greenish, sides silvery, with a purplish tinge along the abdomen; 

 a badly marked broad, steel-blue stripe, extending from behind the eye to the 

 caudal fin and bounded above and below by a narrow yellow edging. 

 Sab. — Rivers on Neilgherry Hills ; attaining 3-| inches in length. 



8. Danio osteogbaphtts. 



Perilampus osteographies, McClelland, Ind. Cyp., pp. 289, 392, pi. 45, fig. 3, 

 (erroneously numbered, pi. 56, fig. 9,) *Cuv. and Val. xvi, p. 468. 

 ? Chela albuma, Heckel, Fische Kaschmir, p. 390, c. fig. 

 Perilampus Malabaricus, Jerdon, M. J. L. & S. 1849, p. 325, (Male). 



„ Canadensis, Jerdon, 1. c. p. 325, (Female). 



? „ Mysoricus, Jerdon, 1. c. p. 325. 



? Banio alburnus, *Gunther, Catal. -vii, p. 283. 



„ micronema, Bleeker, Mem. Soc. Holl. Haarlem, 1864, Ceylon, p. 19, t. 4, 

 fig. 2 ; Giintner, Catal. vii, p. 282 ; Day, Proc. Zool. Soc. 1869, p. 560 j 

 1870, p. 374. 

 „ lineolatus, Bleeker, 1. c. p. 19, fig. 3. 

 Devario cyanotmnia, *Bleeker, Prod. Cyp. p. 283. 

 ParadMnio aurolineatus, Day, Proc. Zool. Soc. 1867, p. 296. 



B. III. D. 2/11, P. 15, V. 8, A. 3 Z±, C. 19, L. 1. 35—37, L. tr. 7|/3. 



Length of head 2/11, of caudal 2/11, height of body 2/7, of dorsal fin 

 1/8 of the total length. — Eyes : diameter 1/5 of length of head, 1 diameter 

 from end of snout. Rostral barbels half as long as the orbit, maxillary 

 ones very short. In some specimens the latter are entirely absent. — Colours : 

 back steel-blue ; some irregular vertical yellow lines on the fore-part of the 

 body, and three or four blue bands along the sides, the central ones 

 coalescing, so as to form a broad bluish band down to the middle of the 

 caudal fin. 



Mab. — India and Ceylon ; attaining 6 inches in length. 



9. Danio ^quipdwatus. 



Perila/mpus wquvpinnatus, McClelland, Ind. Cyp. p. 393, pi. 60, f. 1. 

 Pteropsarion wquipinnatus, *Gunther, Catal. vii, p. 285. 



B. III. D. -1 p. 17, v. 8, A. - 2 , C. 19, L. 1. 32-34, L. tr. 1 . 



10 12 —14 3i 



Length of head 1/5, of caudal nearly 1/5, height of body 1/4 of the 

 total length.— Eyes : diameter 2/7 of length of head, 1 diameter from end of 

 snout. Rostral barbels extend to the middle of the orbit, the maxillary ones 



