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Show 526 SURGEON F. DAY ON INDIAN FISHES. [Nov. 11, form of one central lobe with a smaller one on either side and a short cirrus between. Fins as in the other species. Two specimens 4 inches long. Old Collection. EXOSTOMA BERDMOREI, Blyth. Blyth, Journal A. S. of Beng. 1860, p. 155. The typical specimen is 4 inches in length, but in a very bad state. Its snout is more pointed than in the other species. D. 1/0. P. 1/10, A. 6. One specimen from the Tenasserim Provinces, presented by Major Berdmore. In the genus Hemirhamphus the following species exist in the Museum :-Hemirhamphus buffonis, C. & V., twelve specimens from the Calcutta bazar, labelled H. striga, Blyth ; Hemirhamphus ectun-tio, Ham. Buch., many specimens, to 7 inches in length, labelled H. brachynotopterus, Blyth ; Hemirhamphus commersonii, C. & V., one specimen 11 inches in length, from the Calcutta bazar, and labelled //. notatus, Blyth. HEMIRHAMPHUS PLUMATUS, Blyth. J. A. S. of Bengal, xxvii. p. 288. D. 2/13. P. 10. V. 7. A. 2/11. C. 16. L. 1. 66. In both specimens the extremity of the mandible is broken. Length of head, in the best specimen (with the lower jaw), § of the total length. Upper jaw ^ longer than wide. Pectoral short. Eyes rather nearer to the posterior extremity of the head than to the anterior extremity of the upper jaw, 1| diameter apart. Upper surface of head flat. Teeth in numerous villiform rows in the upper jaw, less numerous in the lower. Fins. Ventral arises in the posterior * of the length from the snout to the base of the caudal fin; it reaches to under the base of the dorsal, which last is in advance of the anal. Caudal forked, lower lobe the longest. Upper margin of dorsal fin concave. Lateral line in lower fifth of the body. Colours. Bleached, silvery stripe visible. Two specimens, 8 inches long, from Ceylon. HEMIRHAMPHUS NEGLECTUS, sp. n. H. ectuntio, Blyth (not Ham. Buch.). D. 14. P. 9. V. 6. A. 8-|-0. C. 15. L. 1. 48. Length of head about \ of the entire length, of the lower jaw (anterior to the upper) A of the total length. Eyes 2\ diameters from end of snout, 1\ diameter apart, 2\ diameters from the posterior extremity of the opercle. Upper surface of head nearly flat, and covered with pores. Upper jaw twice as long as broad at its base. |
