470 DR. J. E. GRAY ON THE CHAMAELEONIDE. [Noy. 8, 
c. Occiput produced and acute behind, with a distinct central keel, 
with large hood-like occipital flaps, from apex to side of the 
temple, covered with flat scales. 
5. CHAMELEON PETERSII, 0, s. B.M. 
C. dilepis, Peters, MS. 
Back compressed, with a series of large compressed scales ; fore- 
head narrow, covered with flat scales with a strong sharp edge on 
each ; occiput contracted and short-edged behind, with a well-raised 
central keel arched on its upper edge ; occipital flaps broad, rounded, 
covered with large, flat, hexagonal scales ; scales small, equal; chin 
and belly dentated, covered with flat scales. 
In spirits, dark green, with a white spot behind the temple, and 
also a white streak from the axilla; forehead, temple, and side of 
occiput white. 
Hab. E. Africa, Mozambique (MacLeod, Dr. Peters). 
Var. kirkii. The occipital lobes smaller. B.M. 
C. dilepis, Gray, P. Z.S. 1864. 
Hab. Eastern Africa (Dr. Kirk). A female. 
Chameleo petersii. 
d. Occiput produced and acute behind, with alow keel, and two large 
broad flaps behind, covered with large, irregular, convex shields; 
scales of body and limbs with larger tubercles. 
6. CHAMALEON MoNACHUS. (Pl. XXXI.) B.M. 
Brown (in spirits), dorsal keel and body white-speckled, upper 
and lower lip at the gape and ventral crest white; the occipital flaps 
large, with irregular, unequal, flat shields ; the body and limbs with 
low, convex, larger tubercles. 
C. cucullatus, A. Duméril, Arch. du Mus. vi. t. 6. f. 9 (not Gray). 
C. parsonii, Cat. Mus. Zool. Soc. MS. 
Hab. Madagascar. 
The head of this species is not well figured as that of C. eucul- 
latus by M. A. Duméril. It is at once known from that species 
