468 DR. J. E. GRAY ON THE CHAMELEONID. [Nov. 8, 
6. LopHosaura. Chin with a series of elongated processes covered 
with scales. 
7. Catumma. Orbit with large lobes, covered with scales behind ; 
back dentated ; belly and chin rounded, not dentated. 
B. Nose simple; orbit angularly produced in front. 
8. BRooxKEsia. 
C. Nose and orbit with cylindrical horns, covered with a sheath. 
9. Triceras. Horns, one on the nose and one on the front of each 
orbit. 
D. Nose with one or two bony prominences covered with scales. 
10. Crassonota. Nose compressed in front, with a flexible com- 
pressed lobe covered with scales; back with a distant series of 
slender elongated scales. 
11. Enstrostris. Nose-horn single, bony, central, sharp-edged 
above ; occiput lobed behind; back with a lobed, erect fin. 
12. Savroceras. Nose-horn single, bony, central, sharp-edged 
below, grooved above; occiput simple behind ; back dentate. 
13. DicranosaurA. Nose-horns two, produced, compressed ; back 
compressed ; belly and chin rounded. 
14, Cynrosaura. Nose dilated, and toothed on each side in front; 
back, chin, and belly dentate. 
A. Nose of male and female simple, not dilated ; orbit simple. 
1. CHAMELEON. 
Nose (of both sexes) simple, without any appendages or horns ; 
the chin simple; orbit round, simple. The back, chin, and belly 
with a series of compressed elongated scales, forming a dentated 
crest. 
a. Occiput produced and acute behind, with raised central keel, with 
small scales behind the temples. Calyptrosaura. 
1. CHAMELEON CALYPTRaTus, A. Dum. Arch. du Mus. vi. t. 21. 
fale 
The occipital ridge very high and large; scales equal, small. 
Hab. Madagascar (Mus. Paris.). 
I only know this species from the description and figure of M. A. 
Duméril. 
2. CHAMELEON VERRUCOSUS, Gray, Cat. B. M. 267; Dum. & 
Bib. Erp. Gen. iii. t. 27. f. 1. .M. 
Bradypodium verrucosum, Fitz. Syst. Rept. 43. 
Scales unequal ; sides with several series of larger tubercles. 
