1864. ] DR. J. E. GRAY ON THE CHAMZLEONID. 471 
by the form of the occiput, and the crest on the chin and belly. It 
is a fine large species. We received it from the Zoological Society 
in 1855. 
e. Occiput broad and rounded behind, flat above, with a scarcely 
raised central line behind. 
+ The sides of the occiput with small granular scales. Erizia. 
* Chin and belly with a distinct denticulate line of white scales. 
7. CHAMELEON SENEGALENSIS, Gray, Cat. B. M. 286; A. Dum. 
Arch. du Mus. vi. t. 22. f. 7 (fig. bad) ; Fitz. Syst. Rept. 41. B.M. 
? C. leptopus, Fitz. Syst. Rept. 41. 
Scales large; head broad and rounded behind; occiput covered 
above with convex scales. 
In spirits, brown or purplish. 
Hab. West Africa, Senegal (Earl of Derby). 
8. CHAMALEON LzvicaTus, Gray, P. Z.S. 1863; Ann. & Mag. 
N. H. 1863, xii. 248. B.M. 
Scales minute ; the dorsal crest very indistinct, only visible on 
the nape; head rhombic behind; occiput covered above with flat 
thin scales. 
Hab. Central Africa, Chartoom (Petherick). 
Probably only a young specimen of the preceding. 
9. CHAMZLEON GRACILIS, Hallowell, Journ. Acad. N. S. Philad. 
vill. 324, t. 18 ( 2 and eggs); Proc. Ac. N.S. Philad. 1854, 99; 
A. Dum. Arch. du Mus. x. 173 (a note only). B.M. 
C. senegalensis, var., Gray, Cat. 
Scales large ; head broad and acute behind ; occiput covered above 
with convex scales. 
In spirits, olive, with a white spot on the shoulder, or interrupted 
on the upper part of the back, and with a band of white spots from 
the axilla. 
Hab. W. Africa, Senegal (4. Gerrard), Angola, Congo, Cuanga, 
and Pungo Adongo (Dr. Welwitsch), ? Liberia (Dr. Ford). 
Var. ? leiocephalus. B.M. 
Scales and colour like the former; the scales on the crown and 
occiput above flat, smooth, hexagonal. 
C. dilepis, Gray, Cat. Mus. 
Hab. W. Africa, Fantee (Capt. Marryat), Ashantee (Mus. Ley- 
den.). 
The figure of Dr. Hallowell is a moderately good representation of 
this species; but the name is not the best, as it is a stouter and 
stronger species than O. senegalensis. 
