G. A. BOULENGER—REPTILIA. 241 
The following description is taken from the Ruwenzori specimens :— 
Vomerine teeth in two strong, slightly oblique series between the choane. Head as 
long as broad, or a little longer than broad; snout rounded, scarcely projecting, 
slightly longer than the diameter of the orbit ; canthus rostralis obtuse ; loreal region 
very oblique and slightly concave; nostril equally distant from the eye and from the tip 
of the snout, or a little nearer the former; interorbital space a little narrower than the 
upper eyelid ; tympanum very distinct, two-thirds to three-fourths the diameter of the 
eye. Fingers obtusely pointed, first and second equal; toes slender, obtusely pointed, 
two-thirds webbed; subarticular tubercles small; a small elliptical inner metatarsal 
tubercle, measuring one-third the length of the inner toe. ‘Tibia as long as or a little 
longer than the fore limb, as long as the foot; tibio-tarsal articulation reaching the tip 
of the snout or beyond. Skin smooth; a narrow but very prominent glandular dorso- 
lateral fold from the upper eyelid to the sacral region. Greyish or olive-brown above, 
with more or less distinct darker spots; a broad, light, dark-edged vertebral band some- 
times present; a dark streak from the end of the snout, through the nostril, to the eye; 
a dark temporal spot ; a light streak from below the eye to the angle of the mouth; 
limbs with dark cross-bands ; lower parts white, throat with brownish marblings. 
The largest specimen measures 64 mm. from snout to vent. 
Rana nutti is very nearly related to R. angolensis Bocage. 
Two female specimens, showing variations in the markings, are figured on 
Plate VIII. figs. 1 & 2. 
REPTILIA. 
The species of Lizards obtained on Ruwenzori by Mr. Woosnam are Agama atricollis, 
A. Smith, Lacerta jacksonii Blegr., Mabuia maculilabris Hallow., Mabuia striata Peters, 
and the undescribed Lygosoma for which I proposed the name L. meleagris. This is 
here redescribed and figured, and I have appended notes on the specimen of the little- 
known Lacerta jacksoni. 
Chameleons are represented by Chameleon senegalensis Daud. (/evigatus Gray) and 
C. ellioti Gthr., obtained at the foot of the mountain (5000-6000 feet) by Mr. G. F. 
Scott Elliot; C. johnstoni Blgr., and C. xenorhinus Blgr., two remarkable forms 
discovered by Sir H. H. Johnston, and of which further examples were collected 
during the Expedition; and a small species, C. rudis Blgr., of which a female had 
been previously obtained by Sir H. H. Johnston, but which could not be properly 
understood until the male was discovered by Mr. Woosnam and his party. 
Of Snakes, Leptodira hotambeia Laur. and Elapechis guentheri Bocage were brought 
home from the foot of Ruwenzori by Mr. G. F. Scott Elliot ; Chlorophis emini Gthr. 
VOL. XIX.—PART 111. No. 33.—December, 1909. 2 
