1. CHAMZLEON. 445 
or spur. Tail slightly longer than head and body. A white line 
from chin to vent 
Roba MBO ocx de debits he we avon MeG ede a ews 378 
From end of snout to extremity of mandible .. 43 
From end of snout to extremity of casque.... 65 
Greatest width between lateral cranial crests .. 21 
Depth of skull (mandible included) .......... 50 
Width of head 2.2... cece c eee cee ee 30 
Body ya ig ind eb ree teats Rds nes ny a ad 140 
EADIE feces sl nacalglanarn see oreia tan hate eis 8 Si loge vi 34 
aA | Saascshenate sin Gs eae aie Cane S SPOS eee hee ec as 195 
South Arabia *. 
ao. Near Aden. Major Yerbury [P.1. 
3. Chameleon calcaratus. (Puarr XXXIX. fig. 2.) 
Chameleo vulgaris, part., Gray, Cat. p. 265. 
Chameleo mexicanus, Laur. Syn. Rept. p. 45. 
africanus, Laur. 1. c. p. 46. 
calearatus, Merr. Tent. p. 162. 
zebra, Bory de St. Vine. Dict. Hist. Nat. iii. p. 97. 
vulgaris, var. B, Dum. & Bib. iii. p. 208. 
Chameleon coromandelicus, Fitz. Syst. Rept. p. 41. 
Chameeleo zeylonicus (non Laur.), Jerd. Journ. As. Soc. Beng. xxii. 
1853, p. 466; Stoliezka, Proc. As. Soc, Beng. 1870, p. 1, & 1872, p. 81. 
vulgaris, Gtinth. Rept. Brit. Ind. p. 162; Theob. Cat. Rept. 
Brit. Ind. p. 120, 
Chameeleon vulgaris, part., Gray, Proc. Zool. Soc. 1864, p. 469. 
——, var. marmoratus, Gray, 1. c. 
Casque much elevated posteriorly, with strong curved parietal 
crest; the distance between the commissure of the mouth and the 
extremity of the casque equals or nearly equals the distance between 
the end of the snout and the extremity of the mandible; no rostral 
appendages ; a strong lateral crest, not reaching the extremity of 
the parietal crest ; an indication of a dermal occipital lobe on each 
side, not reaching the parietal crest. No enlarged tubercles on the 
body ; a feebly serrated dorsal crest; a series of conical tubercles 
form a very distinct crest along the throat and belly. Male with a 
tarsal process or spur. Tail longer than head and body. Gular- 
ventral crest white; commissure of the mouth white. 
moillim. millim. 
Total length... 0... 0. ce cece eee ee eee 373 370 
From end of snout to extremity of man- 
GID ri Sine te aay gies eireleat snime cemndenat 40 38 
From end of snout to extremity of casque 57 51 
* The specimen described by Peters is said to have been obtained in 
Madagascar. 
