1. cHAMZLEON, 457 
similar to that of C. calyptratus; a strongly compressed long bony 
rostral process, with straight smooth edges, rounded at the end; 
this rostral process covered with flat scales. No enlarged tubercles 
on the body ; a denticulated crest along the back and belly. 
millim. millim, 
Head. wisevecewcasss 36 Greatest depth of casque 32 
Rostral appendage .... 7 Body: aight. wvhisias sis 111 
Greatest width of casque 13 Dail seca eaters Sista Seta 122 
Western coast of Madagascar. 
19. Chameleon melanocephalus. 
Microsaura melanocephala, Gray, Proc. Zool. Soc, 1864, p. 474, fig. 
Casque feebly elevated, narrow and pointed posteriorly; the 
distance between the commissure of the mouth and the extremity of 
the casque is less than the length of the mouth; no rostral ap- 
pendages ; crests feeble; a distinct parietal crest and a temporal on 
a line with the eye; the temple between the crests covered with 
large, unequal, flat scales ; no occipital lobes. Scales of back and 
sides granular, intermixed with’ scattered enlarged, round, flat 
tubercles; a series of isolated oval tubercles along the vertebral 
line ; ventral scales uniformly granular ; no ventral crest; a series 
of conical enlarged tubercles along the throat. No tarsal process. 
Tail nearly as long as head and body. 
millim 
Total length is ccic oie visas eyes ge wee aaa es 112 
From end of snout to extremity of mandible .. 13 
From end of snout to extremity of casque .... 17 
Greatest width between lateral cranial crests .. 6 
Depth of skull (mandible included) .......... 11 
Width of head .......... cee ee eee ee eens 8 
Body enas tem daaeieasoe grt weeeier eet 45 
PUD AY Sng, Sisse geste ea aseie amo eraser bseeus wre Giera's 9 
TVET, sit se olenh tag a aOagacabesace Giana g tae sbvanea ara arannte 54 
South Africa. 
‘a 9. Natal. (Type.) 
b Yg. Kingwilliamstown, 
20. Chameleon gutturalis. 
Chameleon gutturalis, Smith, Il, S. Afr., Rept., App. p. 3. 
“Occipital casque three-sided, produced and pointed behind ; 
upper surface of head covered with pointed tubercles, circular or 
compressed ; palpebral ridges and edges of occipital crest strongly 
denticulated ; temples intersected by a raised dentated ridge, the 
scales above and below large, flat, and smooth. Back and tail 
surmounted with a row of three-sided tubercles; body and tail 
