G. A. BOULENGEE— REPTILIA. 245 



A single specimen, a gravid female, of this small Chameleon was presented by 

 Sir H. H, Johnston to the British Museum in 1901. I had referred it provisionally to 

 C. Mtceniatus Fisch., from vphich it differs in the coarser scaling and in the much 

 longer spine-like tubercles forming the gular-ventral crest, and it was briefly alluded 

 to by Mr. J. L. Monk ('Zoologist,' 1903, p. 324) as likely to prove a new species, a view 

 which is confirmed by the discovery of the male by the Euwenzori Expedition, in the 

 Mubuku Valley, on the east side of the mountain, at an altitude of 10,000 feet. 



[A specimen (no. 24, 2nd Feb., 1906) was found at 10,000 ft., just where the bamboo 

 and tree-heath zones meet and intermingle, forming rather more open patchy country. 

 This specimen was much smaller than the C. ellioti met with lower down and of a dirty 

 grey-green colour. At this altitude (10,000 ft.) the vegetation was sometimes white 

 with frost in the early morning. During the time we were encamped there the native 

 porters (about 20 in number) were offered rewards for finding Chameleons, but they 

 never found but this one, which was sitting on a rotten stump of tree-heath. I fully 

 expected this alpine Chameleon to be of a different species to C. ellioti, which is met 

 with below 6000 ft., where the climate is hot and tropical. — R. B. W.'] 



Those who regard C. ellioti and C. lioehnelii as races or local varieties of C. hitoeniatus 

 would of course place G. rudis under the same species — and I should be the last to 

 blame them, having at one time held the same opinion. 



9. Chameleon johnstoni Blgr. 



[This Chameleon was ol»fained only in the Mubuku Valley, E. Ruwenzori, between 

 6000 and 7000 feet, and it did not appear to be very plentiful. It is found usually 

 among the lower bushes and shrubs just below the forest-line, or in the open spaces 

 where native clearings had been made just inside the forest. — R. B. W.'] 



10. ChAAI^LEON XElfOEHINUS Blgr. 



[This Chameleon was obtained only in the Mubuku Valley, E. Ruwenzori, from 

 6000 to 7000 feet, and was found in much the same kind of situations as C. johnstoni, 

 but it appeared to be more partial to the larger trees and was found upon the trunks. 

 We noticed, too, that this Chameleon when first caught was always of a much darker 

 colour than 0. johnstoni, almost black, and never became very much lighter. It is not 

 improbable that it lives in the large forest- trees, where its presence would be almost 

 impossible to detect. — R. B. W.^ 



