65 



"Regarding thenthis species as hitherto undescribed, I propose for 

 it the name of Chameleon Bibroni, as a tribute of respect to M. Bibron. 

 of the Musee d'Histoire Naturelle of Paris, the merit of whose Avork 

 on Reptiles, from whJch I have derived so much advantage, I am 

 anxious thus publicly to acknowledge ; and to whom, dunng his late 

 visit to London, I am indebted for assistance and information. while 

 engaged with the coUection of Sauria, in the possession of this So- 



cictv- 



" The characters of Cham. Bibroni may be summed up as follow : 

 Casąue (or upper surface of the skuU) flat, with a very slight occi- 

 pital keel ; contracted and concave between the eyes, rounded pos- 

 teriorly : superciliary ridge very little elevated, and becoming obso- 

 lete over the nostrils ; a small flap on each side from the posterior 

 edge of the casąue lies on the neck ; the dorsal ridge and median 

 line, both of the throat and belly, destitute of a denticulated crest. 

 The' grains of the body and limbs small and close-set, those of the 

 casque flat and angular. 



Cham^eleon Bibroni. Galed pland ; vix apud occiput carinatd ; 

 inter oculos angustd et concavd; postice rotundatd,et lobo par- 

 vulo utringuc instructd ; margine supercilian parūm elevato, et 

 super nares obsoleto ; culmine dorsali, linedąue medid į^er gu- 

 lam et ahdomen tendente, absque denticulis ; corpore granis par- 

 vis et confertis tecto ; galed lamellis angularibus. 



Longitudo corporis cum capite 4 unc. 



. • caudm 5į 



Hab. m Insula Fernando Po. 



" In proportion to the size of the body the head of Cham. Bibroni 

 is short, and particularly the muzzle, Tvhich is very acute at the apex. 

 Vie-wed from above the helmet it would present an elongated oval, 

 rounded behind and acute anteriorly, were it not for its contraction 

 between the eyes, which is not the case in Ch. Senegalensis. The 

 accessory lobes at its posterior part are very small, and might easily 

 be overlooked. Perhaps, however, they may be larger in the malė, 

 (for the present individual, it is to be observed, is a female,) but of 

 this I have no means of judging. The length and slendemess of 

 the tail are remarkable. The granulations of the body are small 

 and even. The general colour is purplish black, passing on the 

 Bides of the belly, on the loins, and posterior limbs, into olive green ; 

 the inside of the limbs, and the median line of the abdomen, are pale 

 reddish yellow." 



