204 



G. A. BOULENGÉR 



tail; an annulus on tlie body contains 19 segments, 12 above 

 and 7 below the lateral lines, the median ventral 6 times as 

 broad as long. Vertebral and lateral grooves distinct. 4 anal 

 segments; 6 praeanal pores. Pale brown above, white beneath. 

 Total length 175 millim. ; tail 15. 



Nine specimens from the Cassine River District , Portuguese 

 Guinea. 



26. Monopeltis magnipartita, Peters. 

 French Congo: Fernand Vaz. 



Grerrlrosauri<la^e. 



27. Gerrhosaurus nigrolineatus, Hallow. 

 French Congo: Fernand Yaz. 



Scineiclae. 



28. Macroscincus coctasi, D. & B. 



Cape Verde Islands: Ilheo Razo. 



29. Mabuia fogoensis, 0' Sh. 

 Cape Verde Islands: S. Nicolao. 



30. Mabuia stangeri, Gray. 



Cape Verde Islands: Boa Vista, Ilheo Razo. 



31. Mabuia spinalis, sp. n. 



Snout short, obtuse. Lower eyelid with an undivided transpa- 

 rent disk. Nostril behind the vertical of the suture between the 

 rostral and the first labial; a postnasal; anterior loreal usually in 

 contact with the first labial; supranasals in contact behind the 

 rostral; frontonasal' broader than long; praefrontals in contact 

 with their inner angles or forming a short suture; frontal as 

 long as frontoparietals and interparietals together , in contact 

 with the second and third, or first, second, and third supraoculars; 

 four supraoculars, second largest; four or five supraciliaries ; fron- 

 toparietals distinct, larger than the interparietal; parietals forming 

 a suture behind the latter shield; a pair of nuchals; fifth or sixth 

 upper labial largest and i^elow the eye. Ear-opening oval , nearly 

 as large as the eye, with a few slightly projecting granules on 

 the anterior border. Nuchal and dorsal scales strongly tricarinate; 

 36 or 38 scales round the middle of the body, subequal. The 



