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Show 702 MR. F. DAY ON NEW INDIAN FISHES. [June 27, Scales in oblique rows, passing backwards and upwards above the lateral line, and in horizontal rows below it. Some exist over dorsal and anal rays. Lateral line follows the curve of the back in the upper fourth of its course ; it is in single tubes. Colours. Rosy, with four oblique brilliant golden lines passing from the lateral line upwards and backwards, impinging on two rows of scales, leaving two intermediate rows without such lines. Four similar golden lines are also present below the lateral line: the first proceeding from the posterior margin of the orbit to the lateral finger-mark ; the second from the middle of the operculum to opposite the end of the soft dorsal, where it is lost on the lateral line ; the third from beneath the orbit to the base of the caudal fin ; the fourth from the lower margin of the base of the pectoral to the base of tbe anal. A large, deep black finger-mark exists on the lateral line opposite to the commencement of the soft dorsal. Pectoral, ventral, and anal yellowish. Dorsal and caudal pinkish. Eyes silvery, with a dark mark below the pupil. Following the opinion of Cuvier and others, and not having seen a specimen of Russell's fish, I had previously considered this to be the Genyoroge notata, C. & V. Since m y arrival in Madras I have had ample opportunities of investigating the species, which I find to be a Mesoprion, and apparently the M. russelli of Dr. Bleeker. UPENEOIDES BIVITTATUS, CUV. & Val. This fish is very similar to the U. vittatus, C. & V., with which, indeed, Dr. Gunther has placed it. But there are certain evident differences, which I propose adverting to. Its barbules extend to beyond the posterior margin of the operculum ; its caudal is more deeply lobed; its lateral line is more raised; and it possesses a rather thick and large air-bladder, which the U. vittatus is without. The coloration likewise differs. The Upeneoides bivittatus is darker along the back; its golden stripes are not so well marked; and the caudal has two horizontal brown lines on either side of its centre, and three oblique bands running across the upper lobe and two across the lower lobe. In the Upeneoides vittatus the caudal has six yellowish-brown bars with dark edges across the upper lobe, and a black extremity, whilst on the lower lobe there are also three oblique bars, and the extremity is white. The first dorsal is also black-edged. URANOSCOPUS MARMORATUS, C. & V. B.vi. D. 4/A p. is. V. 1/5. A. 13. C. 11. Length of specimen Sf^ inches. Length of head nearly f, of pectoral {, of base of first dorsal T T, of base of second dorsal |-f of base of anal |, of caudal T T of the total length. Height of head T T, of first dorsal £, of second dorsal T, of anal T T of the total length. |