444 Mr. G. A. Boulenger on 



Number of segments, ? 69, c? 68. 



Length of ? 130 millim., width 105; of <J 114, width 9*5. 



Loc. Mombasa {D.J. Wilson), $ ? . Fragmentsof a female 

 example belonging apparently to this species were brought 

 by Dr. Gregory from the Papyrus swamp north of Rangatan. 



EXPLANATION OF PLATE XVIII. 



Fig. 1. Balycurus pictus, sp. n. Enlarged. 



Fig. 2. Scorpio cavimanus, Poc. Upperside of hand of male example 

 from Ugogo. 



Fig. 2 a. Ditto. Posterior tarsus from below. 



Fig. 3. Scorpio Gregorii, sp. n. Upperside of hand of male example 

 from Tzavo. 



Fig. 3 a. Ditto. Posterior tarsus from behind. 



Fig. 3 b. Scorpio exitialis, Poc. Posterior tarsus from behind. 



Fig. 4. Eurydesmus contortus, sp. n. Right copulatory foot from the 

 inner side. 



Fig. 5. Tetracentrosternus Jlavocinctus, sp. n. Right copulatory foot 

 from below. 



Fig. 6. Lophostrepttis armatus, sp. n. Anterior aspect of left half of 

 copulatory organ. 



Fig. 7. Odontojn/ge Gregorii, sp. n. Anterior aspect of left half of copu- 

 latory organ. 



Fig. 8. Odontopyge Wilsoni, sp. n. Anterior aspect of left half of copu- 

 latory organ. 



Fig. 9. Odontopyge semistriatcij sp. n. Anterior view of right half of 

 copulatory organ. 



LXII. — Descriptions of new Lizards from Madagascar. 

 By G. A. Boulenger, F.R.S. 



Diplodactylus robustus. 



Head large, oviform, very distinct from neck, once and one 

 third as long as broad ; the skin confluent with the cranial 

 ossification ; snout longitudinally grooved in the middle, as 

 long as the distance between the eye and the ear ; ear-opening 

 narrow, vertical. Limbs moderate ; digits short, granular 

 inferiorly, very feebly dilated at the end ; the granules re- 

 placing the subdigital lamellge forming three longitudinal 

 series. Upper surface of head covered with large polygonal 

 juxtaposed tubercles ; supraocular region covered with large 

 polygonal flat scales in the middle, with granules on the 

 borders ; temporal region with small flat granules and large 

 subcorneal tubercles. Rostral nearly twice as broad as deep, 

 widely separated from the nostril ; 10 or 11 upper labials, 

 first entering the nostril ; 10 lower labials, each with a small 



me 



