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Show 382 SURGEON F. DAY ON THE FISHES OF ORISSA. [May 27, 120. CHELA BACAILA, II. Buch. Jellahri (Ooriah). B.iii. D. 2/7. P. 13. V. 9. A. j^gj. C.19. L. 1.110. Hab. Common in rivers and tanks, attaining 9 inches in length. Dr. Jerdon, in the Madras Journ. of Lit. & Sci. 1849, p. 327, expressed his doubts whether a species of Chela which he obtained in the Canvery, and termed Pelecus fiavipinnis, might not be identical with the Leuciscus novacula, Val. Having taken the former in the Canvery, I find the fins rays to be as follows:- B. iii. D. 2/7. P. 13. V. 9. A. ~^. C. 19. L. 1. 65. L. tr. 9/5. The Chela novacula is said to have the following :- B. iii. D. 9. A. 17. L. 1. 60. L. tr. 15/3. 121. NEMACHEILUS BOTIA, H. Buch. B.iii. D. 3/11. P. 13. V. 8. A. 3/5. C.19. L. 1.70-80. L. tr. 14/15. The variety existing in Orissa is that without any projection below the skin in the praeorbital region (N. bilturio, H. Buch.), whilst in all the Assam specimens I have examined this prominence is more or less distinct (N. botia, H. Buch.). Hab. Orissa, and in the Cossye river at Midnapore, where it attains 2\ inches in length. 122. NEMACHEILUS MUGAH, sp. n. Mug ah (Bengali). B.iii. D. 2/7. P. 11. V. 8. A. 546. C. 17. Length of head \, of pectoral \, of base of dorsal -\, of base of anal y1-, of caudal i- oi the total length. Height of head A-, of body y2 3, of dorsal fin y2^, of ventral -f^, of anal T 2^ of the total length. Eyes. Small, diameter £ of length of head, 2 diameters from end of snout, l-§ diameter apart. Body fusiform, with compressed sides. The free portion of the base of the caudal as long as high. Snout pointed, overhanging the jaws. Nostrils much nearer to the orbit than to the end of the snout. No enlargement of the praeorbital. The two pairs of rostral and the maxillary barbels all about as long as the eye. A rather deep central longitudinal groove extends from opposite the posterior margin of the orbit to the end of the occiput. Fins. Dorsal arises midwav between the snout and the base of the caudal fin, its upper margin is straight. Pectoral extends more than halfway to the base of the ventral, which latter is situated under the anterior third of the dorsal, whilst the fin reaches halfway to the base of the anal. The anal is situated in the posterior two-fifths of the total length. Caudal emarginate in its last fifth. Scales small but very distinct; twelve rows exist between the |
