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Show 1873.] SURGKON F. DAY ON INDIAN FISHES. 239 ones confluent; both pectorals rudimentary ; first dorsal ray thickened and prolonged, the succeeding few low. Scales cycloid. Colours, twelve to thirteen brown vertical bands, the first on the snout; fins with dark edgings. Hab. Coromandel coast of India. I obtained two specimens, both 5 inches long, from the Madras bazars. SILURUS DUKAI, sp. nov. D. 4. P. ±. V. 10. A. 78. C. 19. Length of head T 2j, of caudal ^, height of body T 2 y of the total length. Eyes just above and behind the angle of the mouth and in the anterior half of the head. Barbels four, the maxillary reach the base of the ventral, the single mandibular pair as long as the head. A single row of six widely separated open glands under the mandible. Teeth in a single uninterrupted horseshoe-shaped band on the vomer. Fins: pectoral rather pointed, its spine moderately strong, short, entire, and having a soft termination ; dorsal fin rudimentary, and in the anterior fourth of the total length; anal and caudal united, without any distinct notch. Colours uniform. Hab. Darjeeling, whence my friend, Dr. Duka, sent me several specimens, and after whom I have named it. SEMIPLOTUS BREVIDORSALIS, sp. nov. B. iii. D. 14. V. 9. A. 7. L. 1. 40. L. tr. 7/9. Length of head ^, of caudal nearly |, height of body nearly j of the total length. Eyes, diameter 3 of length of head, 1 diameter from end of snout, 1| diameter apart. Snout swollen; mouth inferior, transverse; lower jaw not covered by lip, three rows of large pores across the snout; knob at symphysis badly developed. Fins: last undivided dorsal ray osseous, very strong, entire, longer than the head by a distance equal to one diameter of the orbit; dorsal fin commences midway between the snout and the base of the caudal, the fin two thirds as high as the body below it; pectoral falciform, extending to over the ventral, which last is long, reaching to the anal; caudal deeply forked. Scales, 4| rows between the lateral line and the base of the ventral fin. Colours silvery. Hab. Rivers below the Neilgherry Hills in the Madras Presidency. ROHTEE NEILLI, Sp. 110V. B.iii. D. 4/8. P. 13. V. 10. A. 21. L. 1. 59. L. tr. 12/18. Length of head §, of caudal |, height of body f of the total length. Eyes, diameter rather above 3 of length of head, f of a diameter from end of snout, and § of a diameter apart. Profile over nape concave, thence a considerable rise to the base of the dorsal fin. Upper jaw somewhat the longer. Barbels four, all nearly as long as the eye. Fins : dorsal commences midway between the anterior edge of the orbit and the base of the caudal fin, its |