| OCR Text |
Show 622 SURGEON F. DAY ON THE [Dec. 9, Fins. The dorsal arises midway between the posterior extremity of the orbit and the base of the caudal. The anal commences under the anterior third of the dorsal. Caudal lunate. Scales. Three and a half rows between the lateral line and the base of the ventral fin. Colours. Silvery, with a badly defined lateral band, and some vertical yellow lines in the anterior half of the body. Dorsal and anal greyish, with reddish margins anteriorly. In the immature there is a dark humeral spot, and a steel-blue lateral band goes to the centre of the caudal fin; in its last half it has a scarlet stripe along its centre. Hab. A tank near Pegu. Four specimens captured, from 2-j2^ to 4 inches iu length. CHELA SLADONI, sp. nov. B.iii. D. 2/8. P. 11. V.8. A. 2/19. C. 21. L.l. 68. L. tr. 10/8. Length of head ^, of caudal ^, height of body \ of the total length. Eyes. Diameter '\ of length of head, | of a diameter from end of snout. Posterior extremity of the maxilla reaches to beneath the anterior third of the orbit. The suborbital ring of bones is half as deep as the diameter of the orbit. Teeth pharyngeal, crooked, 5, 4, 2/2, 4, 5. Fins. Dorsal commences opposite the anal; lower lobe of caudal the longest. Edge of thorax rounded; the serrated abdominal margin commences opposite the base of the pectoral fin. Colours. Silvery ; caudal black-edged. Hab. Irrawaddi, as high as Mandalay. Very common. CHATOESSUS MODESTUS, sp. nov. D. 3/13. P. 16. V. 8. A. 3/25. C 21. L. 1. 47. L. tr. 17. Length of head \, of pectoral \, of caudal nearly \ of the total length. Height of head \, of body -fr, oi dorsal fin ± of the total length. Eyes. Diameter £ 0f length of head, | of a diameter from end of snout, 1 diameter apart. Body strongly compressed ; profile above the head slightly concave, then a great rise to the base of the dorsal fin. Abdominal profile equally convex. Mouth transverse; snout moderately projecting over the lower jaw. The posterior extremity of the upper jaw is opposite the centre of the anterior margin of the orbit. Fins. Dorsal fin arises slightly nearer to the snout than to the base of the caudal fin ; its last ray is not prolonged. Scales regularly arranged; eighteen serrations anterior to the ventral fin, and eleven posterior to it. Coloration uniform. Hab. Along the Bassein River as high as the Een-gay-gyce Lake. Many specimens were taken, up to 5£ inches in length. |
