sis. Young dark-coloured, with vermiculated marks on the
chin, chest, and abdomen. The adult dark, beneath gray, varied with black
spots placed in irregular lines.

Inhabits Van Diemen's Land.

Var. 2 adelaidensis. Young pale above and beneath, with three broad
diverging black lines on the chin, leaving an oblong spot in the centre
of the throat, with a broad streak on the chest separated into three
lines on the abdomen, which unite together again on the pubis. The adult
gray, with a few spots beneath.

58. Grammatophora decresii, Dumeril and Bibron, Erp. Gen. 4 472. ?

Tail conical, with nearly regular scales, the base rather swollen,
without any series of spines on the side; the nape and back with a series
of rather larger, low, compressed scales; back with small sub-equal
scales, and a few larger ones in cross series; side of the head near the
ears and side of neck with two or three ridges crowned with short conical
spines. In spirits black, yellow spotted and varied, beneath gray,
vermiculated with blackish; tail black-ringed.

Inhabits Western Australia.

So much smaller than G. muricata that I might have considered them as
young animals if one of them had not had the body filled with well-formed
eggs; and the tail is much shorter in comparison than even in the young
of that species.

They agree in most points with the description given by Messieurs Dumeril
and Bibron, but not in the colour and in the size of the tail. The
specimens in our collection greatly differ in their colour, but are all
very different from any other species.

59. Grammatophora cristata. Nape with a crest of distinct, rather short,
curved, compressed, spinose scales; back and tail with a series of
compressed keeled scales, forming a slight keel; occiput with separate
short strong conical spines: sides of the neck and back with folds
crowned with series of short compressed scales; base of the tail with
some scattered larger scales. In spirits, dull olive; crown black with
large white spots, beneath black; middle of the belly, and undersides of
the base of the tail white; tail with black rings at the end; feet
whitish.

Inhabits Western Australia. Mr. J. Gould.

The underside is coloured somewhat like G. maculatus (G. gaimardii,
Dumeril and Bibron) but the sides of the head near the ears are spinose,
and the nape is distinctly crested.

But as Dumeril and Bibron's species is only described from a single
specimen which is in a bad