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Show 648 MR. STANLEY S. FLOWER ON THE [May 16, and interparietal together; frontal in contact with the second supraocular (in one specimen in contact with the second and third supraoculars) ; four supraoculars, second largest; normally six supraciliaries, first largest (in one specimen there were six supraciliaries on one side and seven on the other, another specimen had only five); frontoparietals distinct, as long as or slightly shorter than the interparietal, which entirely separates the parietals, except in one specimen, where they just touch each other behind the interparietal ; a pair of nuchals ; four labials anterior to the subocular, which is large and not narrowed interiorly. Ear-opening oval and oblique or nearly round, as large as or a little larger than a lateral scale; no projecting lobules. 28 scales round the middle of the body in fourteen specimens, 30 in four specimens; dorsals very slightly larger than the remainder; dorsals distinctly bicarinate in seven specimens, feebly so in one specimen, distinctly tricarinate in two specimens, and in the remainder some are bi- and some tricarinate, tbe keels being either distinct or indistinct; ventrals very feebly bicarinate or smooth. The hind-limb reaches the elbow of the adpressed fore-limb. Subdigital lamella? smooth, 24 to 26 under the fourth toe. Colour (in life). Above bronze-brown, the back generally uniform and immaculate, but sometimes with five more or less distinct narrow longitudinal black lines ; along each side from behind the eye to the basal part of the tail a broad black or dark brown line, 2\ to 3 scales wide (in two specimens this dark line was sparsely dotted with light bronze), separated from the bronze back by a narrow, sharply defined, pale yellow line, one scale wide. Labials, sides of neck and body pale sulphur or greenish yellowT, usually sharply defined from the dark lateral line above, but in a few specimens spotted with dark brown. Lower surfaces pale or bright emerald, or yellowish green. Size. Total length 330 m m . (snt. to vnt. 116 m m . ; tail 214 m m . ) ; arm 37 m m . ; leg 52 m m . ; width of head 16*5 m m . Hab. Siam, Hainan. 78. MABUIA LONGICAUDATA (Hallow.). Mabuia longicaudata, Blgr. Cat. Liz. iii. p. 189. Hab. Siam. 79. LYGOSOMA ANOMALOPUS Blgr. Lygosoma anomalopus, Blgr. P. Z. S. 1890, p. 84, pl. xi. fij?. 4. Hab. Malay Peninsula (Penang), Sumatra. 80. LYGOSOMA MAOULATUM (Blyth). Lygosoma maculatum, Blgr. Cat. Liz. iii. p. 242. Localities. Of this skink, which does not seem to have been previously recorded from either the Malay Peninsula or Siam, I have seen twelve specimens. One I got in the Larut Hills, Perak, elevation 1000 feet; one I caught in the jungle of the Dong Phya |