OCR Text |
Show 524 SURGEON F. DAY ON INDIAN FISHES. [Nov. 11, Length of the head 2 of the total length. Height of body ^, width of head nearly -±- of the total length. The maxillary cirri extend to the end of the pectoral fin, the external mandibular pair to the posterior third of the pectoral, the inner pair to the base of the pectoral. Head rugose superiorly, occipital process keeled, granulated, as long as wide at the base, and extending in a concave extremity ; basal bone crescent-shaped. The superior longitudinal furrow on the head extends to opposite the end of the opercle. Fins. Dorsal spine upwards of \ of the total length, serrated on both sides on its upper half, rugose anteriorly in its lower half, having a short termination. Pectoral spine rather stronger but not nearly so long, being only |- oi the length of the head, serrated on both sides. Adipose dorsal low, Caudal lobed. GLYPTOSTERNUM TELCHITTA, Ham. Buch. In Hamilton Buchanan's MSS. is one of this species termed Pimelodes 1 nibriundus. The drawing is 3^ inches long. Six specimens exist in the collection ; they are identical with the three typical specimens of G. trilineatus, Blyth. In the genus Hara, Blyth, there are examples of the //. buchanani, Blyth, and 77. filamentosus, Blyth. The species given in the 'Fishes of Malabar' as H. malabarica, Day, does not belong to this genus, but is a Macrones. In the genus Amblycetis, Blyth, the two specimens oi A. many ois, IT. B., and A. tenuipinnis, Blyth, are identical. As to the A. ceecu-tiens, Blyth, the specimens are not in a good state; they, however, appear very similar to A. mangois, H. B. EXOSTOMA ANDERSONII, sp. n. D. yO. P. 1/11. V. 6. A. 1/7. C. 15. Length of head \, of pectoral -j!*-, of base of first dorsal fa, of base of adipose dorsal i, of base of anal y1^, of caudal y of the total length. Height of head y1^, of body \, of first dorsal y\j, of ventral r 2^, of anal y^ of the total length. Eyes. Very minute and covered by skin, situated on the upper surface of the head, midway between the snout and posterior extremity of the opercle, whilst their space apart equals their distance from the posterior nostril. A cirrus exists between the two nostrils, which are situated close together and a little posterior to the short maxillary cirrus, which has a widely dilated base consisting of a flap of skin having a second attachment which passes to the lower lip. Mandibular cirri on a transverse line ; they are rather short, but the outer pair are the longer. Lips thick and studded with glands. The isthmus is divided by a slight sulcus from the body, but is continuous with the branchial membrane. Branchial aperture narrow, not extending on to lower surface of head. Upper surface of head covered with skin. Humeral process large. Head depressed, rounded anteriorly. Mouth transverse. |