3. Trionyx ornatus.
Back of the young animal, in spirits, brown, with large, unequal-sized, irregularly disposed black circular spots: head olive, with symmetrical small black spots on the chin, forehead, and nose: throat and sides of neck with large, unequal-sized, irregular-shaped, and nearly symmetrically disposed yellow spots: legs olive, yellow spotted in front: sternum and under side of margin yellow: sternal callosities not developed.
A single specimen has been found by M. Mouhot in Cambodia, which is now in the British Museum. (Described by Dr. J. E. Gray, Proc. Zool. Soc., 1861, p. 41, pl. 5.)
b. Lizards.
1. Draco tæniopterus.
Tympanum not scaly: nostrils above the face-ridge directed upwards: a low longitudinal fold on the neck: scales on the back of equal size, obscurely keeled: gular sac covered with large smooth scales, uniformly coloured: wings dark-greenish olive, with five arched black bands, not extending to the margin of the wing, some being forked at the base. (Günth., Proc. Zool. Soc., 1861, April 23, and Ind. Rept., p. 126, pl. 13, fig. E.)
2. Acanthosaura coronata.
The upper orbital edge serrated, without elongate spine posteriorly; a short spine on each side of the neck; a yellowish-olive band edged with black across the crown, from one orbital edge to the other; an oblique, short, yellowish band, broadly edged with brown, from below the orbit to the angle of the mouth.
This and the following species belong to the genus Acanthosaura, as defined by Gray (Catal. Liz. p. 240). The tympanum is distinct; a short spine between it and the dorsal crest, which is rather low; no femoral or præanal pores: a short spine behind the orbital edge, and separated from it by a deep notch: back and sides covered with small smooth scales, slightly turned towards the dorsal line, and intermixed with scattered larger ones which are keeled: belly and legs with larger keeled scales: tail slightly compressed at the base, the rest being round, and without crest; all its scales are keeled; those on the lower side being oblong, and provided with more prominent keels: throat without cross-fold, and without distinct longitudinal pouch: a slight oblique fold before the shoulder. (Günth., Proc. Zool. Soc., 1861, April 23, and Ind. Rept., p. 149, pl. 14, fig. E.)