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Show 1896.] BATRACHIANS OF THE MALAY PENINSULA. 905 snout than the eye. Eyes on the upper surface of the body, nearer the end of the snout than the spiraculum; a well-marked lachrymal gland from the eye to the nostril; the distance between the eyes twdce as great, or rather more, than the distance between the nostrils and much greater than the width of the mouth. Spiraculum on the left side, directed backwards and upwards, nearer the anus than the end of the snout, visible from above and from below. Anus opening on the right side, close to the lower edge of the subcaudal crest. Tail between three and four times as long as deep, acutely pointed, the tip being inclined upwards in life; upper crest convex, about equal in depth to the lower; the upper crest does not extend on to the back. Depth of the muscular portion of the tail at its base rather more than half greatest total depth of tail. Beak broadly edged with black. Sides and lower edge of the lip bordered with papillae. Upper lip with six series of fine teeth, the upper uninterrupted, the remainder broadly interrupted, decreasing in length towards the beak, the sixth or inner series in some specimens being very small or absent. Lower lip with four long series of teeth, the inner very narrowdy interrupted, the remainder uninterrupted. Colour. The larva till it reaches a total length of from 35 to 40 mm. is blackish-brown above, white beneath, with a grey mottled tail; after this the upper parts are a warm-brown, mottled with darker brown, and the sides and lower parts yellow also mottled with brown, but the skin of the underneath of the abdomen is transparent and of a purple colour ; the tail is mottled brown and yellow; the hind legs of the tadpole are grey marbled with black, when the fore legs appear the back assumes the bright chocolate colour of the adult frog. The iris is golden, and the eye bright and noticeable. Size. Length of body 24 m m . Length of tail 44 m m . Depth of tail 12 m m . The largest tadpole, without hind legs, I observed was 70 m m . in total length ; the largest, with hind legs but without fore legs, was 77 m m . The recently transformed young measure about 25 m m . from snout to vent. 13. RANA GLANDULOSA, Blgr. Rana glandulosa, Boul. Cat. Batr. Sal. p. 73, pl. vii. There are specimens in the British Museum from Malacca from Mr. Hervey and from Singapore from Mr. Ridley. Hab. Malay Peninsula, Borneo, and Palawan. 14. RHACOPHORUS LEUCOMYSTAX, Gravh. (Plate XLIV. fig. 2.) Polypedates leucomystax, Cantor, p. 142. Polypedates maculatus, Stol. J. A. S. B. 1870, p. 148, & 1873, p. 112. Rhacophorus maculatus, part., Boul. Cat. Batr. Sal. p. 83. Rhacophorus leucomystax, Boul. Faun. Brit. Ind., Rept. & Batr. p. 474. |