This species, better known to English Dealers under the name of The Lace Lizard, is peculiar in having the two series of the scales, placed on the upper part of the centre of the tail, raised into a biserrated ridge, and in the outer toe, or rather thumb, of the hinder-foot being long, and reaching to the penultimate distal joint of the first or longest toe; the claws are compressed, sharp.

Genus PHELSUMA. Gray.

Pedes quatuor, digitis fere aequalibus, totis lobatis, muticis; poris femoralibus distinctis.

Caput et truncus supra tesserulis minutis, infra squamis minimis, tecti.

This genus, which appears to be confined to the Isle of France, differs from the rest of the Geckonidae, by the toes being dilated the whole length, and entirely clawless, and covered beneath with transverse scales; by the thumb being very small and indistinct, and by the thighs being furnished with a series of minute pores.

3. Phelsuma ornata (n.s.).
P. supra plumbea macula, fasciaque rufa ornata, subtus albida.
Icon. --
Inhabits Isle of France.

Head depressed, truncated in front, covered with minute ovate scales; the front of the upper part lead-coloured, with a rather broad red band a little before the eyes, and a white crescent-shaped spot on each side immediately behind it, and then some obscure red shades just behind that; the back lead-coloured and blue, with six longitudinal series of irregular-sized red spots; belly whitish; tail rather longer than the body. Body one inch and five-eighths, head half an inch, tail two inches and a half long.

This animal is very interesting, as being the second species of a genus recently established, which only consisted of P. cepedia, the Gecko cepedien of Peron; Cuv. Reg. Anim. 2 46. and 4 t. 5. f. 5.; which has somewhat the manner of colouring, but is very distinct from the Gecko ocellatus of Oppel.

Genus TILIQUA. Gray.

Pedes quatuor pentadactyli, poris femoralibus nullis.
Caput scutatum; dentes in palato nulli.
Truncus regulariter squamosus.