Varanus (part.), Men. Amph. p. 58.
The nostrils are an oblique slit, situated in, or nearly in, the middle between the eye and the extremity of the snout. Scales elliptic, small; those on the back and on the sides not imbricate, each being surrounded by small, circular, granular fold. Tail with a low crest, formed by two or four series of strongly keeled scales. Throat with a transverse fold.
The species are the following:-
The free part of the middle fore toe (without claw) is half as long as the snout .......... V. flavescen, p. 65.
The free part of the middle fore toe (without claw) is much longer than the half snout; all the superciliary scales equally small. Ventral scales in 90 transverse series. Neck
    without angular dark cross bands     V. dreceene, p. 65.
The free part of the middle fore toe (without claw) is much longer than the half snout; all the superciliary scales equally small. Ventral scales in 105 transverse series. Neck with
    dark angular cross bands, their points being directed backwards     V lunatus, p. 66.
Superciliary scales small, with a series oflarger ones along the middle     V nebulosus, p. 66.