Head large, covered with small rather unequal not imbricate scales. sides of the face rounded, without any large scales upon the edge of the eyebrows.  Parotids swollen, unarmed.  Nostrils lateral, medial.  Throat lax, with a slight cross fold behind.  The sides of the neck unarmed.  Nape and back with a crest of low angular distant scales.  Body compressed, with rings of rather small rhombic keeled rough uniform scales placed in cross rings; of the belly rather larger, obliquely keeled; of the limbs larger.  Tail elongated, tapering, rather compressed, with keeled scales, those of the under sides rather truncated, the keel of the scales of the end forming ridges, the upper surface slightly keeled, subdentated.  Toes 5-5, moderate, unequal.  Femoral and preanal pores none.

The Chelosania.  Chelosania brunnea.

Pale brown, rather paler beneath.

Inhabits West Australia.

GINDALIA, Gray.

Head moderate, subquadrangular, covered with regular keeled scales, of the occiput rather smaller.  Face-ridge rather angular, edged with small scales.  Parotids rather swollen, with a ridge of rather larger conical scales over the ears above.  Nostrils lateral, medial.  Throat rather lax, with a cross fold behind.  Nape and back rounded, not crested.  Scales of the back equal, rhombic, keeled, placed in longitudinal series; on the sides smaller, but with the keels forming rather ascending ridges; of the belly similar, in longitudinal series, with the keels sharp and rather produced at the tip.  The tail round, tapering, with imbricate rhombic seales, with the keels forming longitudinal ridges.  Femoral and preanal pores none.  Toes 5-5, unequal.

GINDALIA, Gray.

The Gindalia.  Gindalia bennettii.

Pale brown, rather paler beneath; the scales of the back small, sharply keeled, forming longitudinal ridges, which converge together just at the base of the tail towards the two upper ridges formed by the keels of the scales of the tail; of the limbs rather larger.

Inhabits North-West coast of Australia.

GRAMMATOPHORA.

The Crested Grammatophore.  Grammatophora cristata.

Olive; head black varied, beneath pale; throat, chest and under side of the thighs black; tail black-ringed; scales rather irregular, with a central and two lateral series of compressed keeled scales; nape with a crest of compressed elevated distant scales; sides of the neck with scattered single elongated conical spines; tail tapering, with uniform keeled scales, keeled above, rather dilated at the base, with indistinct cross series of rather larger scales.

Inhabits West Australia.

The Netted Grammatophore.  Grammatophora reticulata.

Grammatophora decresii, Gray, Grey’s Trav.  Austr. 2, not Dum. et Bib.

Black, yellow-spotted and varied, beneath grey, vermiclated with blackish; tail black-ringed; back and nape with a central series of larger keeled scales, with distant cross series of similar scales; sides of the nape and parotids with series of rather larger keeled scales; scales of the back small, subequal; tail tapering, with regular nearly equal keeled scales, and 1 or 2 cross bands of larger scales at the base.