54 Mr. G. A. Boulenger on 



Llackish, the two meeting on the caudal peduncle ; a small 

 black spot at the base of the caudal and another at the base 

 of the anal. 



Total length 40 milHm. 



Three specimens from the Nairobi River, Kilimanjaro, 

 6500 feet. 



In addition to these new Barhus, Mr. Percival obtained 

 examples of the following species : — Laheo monianus, Gthr. 

 (Lumi River) ; DiscoqnatJws demheensis^ Rilpp. (Nairobi 

 River) ; and Tilapia Hunteri, Gthr. (Lake Chala, east of 

 Kilimanjaro) . 



EXPLANATION OF PLATE V. 



Fig. 1. Barbus Percivali. 



Fig. 2. lumiensis. 



Fig. 3. lineomaculatus. 



Fig. 4. mnphigranima. 



[All natural size.] 



IV, — Descriptions of Two new Lizards discovered hy 

 Mr. E. Degen in his Journey to Abyssinia. By G. A. 

 Boulenger, F.R.S. 



Hemidactylus ophiolepis. 



Snout a little longer than the distance between the eye and 

 the car-opening, once and a half the diameter of the orbit ; 

 no frontal concavity ; ear-opening small, oval, vertical. Body 

 and limbs moderate. Digits moderately dilated, free, with 

 rather short distal joints ; 5 lamell-de under the thumb, 8 under 

 the fourth finger, 4 under the hallux, 9 under the fourth toe. 

 Head covered with flat juxtaposed scales, largest on the 

 snout; rostral quadrangular, twice as broad as liigh, with 

 median cleft above ; nostril pierced between the rostral, the 

 first labial, and three nasals, the upper of which is large and 

 forms a suture with its fellow ; seven upper and six lower 

 labials ; symphysial large, triangular, more than twice as 

 long as the adjacent labials ; median pair of chin-shields 

 largest and forming a suture behind the symphysial. Body 

 covered with uniform, imbricate, roundish, smooth scales, 

 largest on the back ; 50 scales round the middle of the body. 

 Male with 8 preeanal pores, forming an angular series. Tail 

 cylindrical, tapering, covered with imbricate smooth scales, 

 •which are larger than those on the body, those of the mid- 



