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1864. | DR. J. E. GRAY ON THE CHAMZLEONIDE. 477 
triangular horns. Scales very minute. Chin, back, and belly not 
toothed; the sides of the back with a longitudinal series, and the 
chin with an arched series, of subulate erect scales. Tail short, 
compressed at the base. 
1. BROOKESIA SUPERCILIARIS. B.M. 
Chameleo superciliaris, Kuhl. 
C. brookesianus, Gray, Cat. B. M. 270; cop., A. Dum. Arch. du 
Mus. vi. t. 22. f. 14. 
Chameleon brookesii, Fitz. Syst. Rept. 
Hab. West Africa. 
C. Nose and orbit of male with cylindrical horns. 
9. TRICERAS. 
Chameleon, § Triceras, Fitz. Syst. Rept. 43. 
The nose of the male with three horn-like processes, covered with 
a conical, continuous, horny sheath—one from the front of each orbit, 
and the other from the middle of the nose. Chin simple. Back, 
chin, and belly not crested. Occiput flat, with a slightly raised 
central line. Scales uniform, granular. 
1. TRICERAS OWENII. B.M. 
Chameleo owenii, Gray, Cat. 269; Zool. Misc. t. 4; cop., A. Dum. 
Arch. du Mus. vi. t. 22. f. 10 (head). 
©. C. bibronii, Martin. 
Chameleon owenii, Fitz. Syst. Rept. 102. 
Dark brown in spirits, with several series of oval longitudinal spots; 
those on side of back forming a pale band; eyelid dark-rayed. 
Hab. Fernando Po (Capt. Edw. Owen). 
D. Nose with one or two bony processes covered with scales ; orbits 
simple, unarmed. 
10. CrAssonota. 
The nose (of male?) compressed in front, with a flexible com- 
pressed lobe covered with scales. Chin simple; orbit rounded. 
Back rounded, with a series of small, distant, slender, flexible, single 
scales. Chin and belly rounded, not dentated. Tail rounded above. 
Occiput flat above, produced behind, shelving on the sides, and 
covered with small scales. Scales equal, thin. 
1. CRASSONOTA NASUTA. B.M. 
Chameleo nasutus, Gray, Cat. B. M. 268; A. Smith, Zool. S. 
Africa, App. 3; A. Dum. Arch. du Mus. vi. t. 22. f. 4 (head bad). 
Chameleon nasutus, Fitz. Syst. Rept. 42. 
Pale brown ; belly paler; head and limbs white-spotted. 
Hab. Madagascar. 
Var. ‘‘ With three isolated spines, each about a line in length, on 
