78 BULLETIN 151, UNITED STATES NATIONAL MUSEUM 



Genus LEIOLOPISMA Dumeril and Bibron 



LEIOLOPISMA CLATHROTIS (Boulenger) 



Lygosoma clathrotis Boulenger, 1900, Ann. Mag. Nat. Hist., ser. 7, vol. 6, 

 p. 194 (foot of Mt. Kenya, Kenya Colony). — Lonnberg, 1911, Svenska 

 Vetensk.-Akad. Handl., vol. 47, p. 16 (In forest near Meru Boma, K. C). — 

 Angel, 1929 (1928), Bull. Mus. Hist. Nat., Paris, p. 249 (vicinity of 

 Nairobi, K. C). 



1 (U.S.N. M.42517) Nairobi River, K. C. (Sm. Afr. Exped.) 1909. 



This, the fifth known and largest specimen, measures 178 (68 + 110) 

 mm. and agrees in closest detail \nth the type except that it possesses 

 24 instead of 22 mid-body scale rows and that the dotting, which 

 Boulenger mentions as being confined to the sides, occurs sparsely 

 on the back; these spots are arranged in 12 longitudinal series from 

 side to side; they appear to be brown rather than black. 



Genus RIOPA Gray 



RIOPA SUNDEVALLH (Smith) 



Eumeces (Riopa) sundevaUii Smith, 1849, Illustr. Zool. S. Africa, vol. 3, App. 



p. 11 (Natal). 

 Lygosoma sundevaUii Boulenger, 1887, Cat. Lizards Brit. Mus., vol.3, p. 307. — 



LovERiDGE, 1920, Proc. Zool. Soc. London, p. 155. 

 Riopa sundevaUii Stejneger, 1893, Proc. U. S. Nat. Mus., vol. 16, p. 722 (Tana 



River, K. C). 



1 (U.S.N.M. 20109) Tana River, K. C. (Chanler) 1892. 



1 (U.S.N.M. 40778) Wambugu, K. C. (Sm. Afr. Exped.) 1909. 



3 (U.S.N.M. 41979, 42171-2) Nairobi, K. C. (Sm. Afr. Exped.) 1909. 



There is nothing noteworthy about this small series of SundevalPs 

 sldnk though it might be remarked that the fourth toe is equal to 

 (No. 42172) or much longer (No. 20109) than the third; in the other 

 three specimens it is but shghtly longer. Some might prefer to 

 identify the Tana River specimen mth Boulenger's ferrandii from 

 Lugh, Somaliland. The only character on which I was able to 

 differentiate that species in 1923 ^^ was by the much longer fourth 

 toe. In the arid sandy thorn-bush steppe of Central Tanganyika 

 Territory (Dodoma Province) all the specimens wliich I have collected 

 agree with ferrandii in this character, but on looking over a series of 

 50 sundevaUii from Lumbo, Mozambique, I find every gradation 

 from third and fourth toes of equal length to others even longer than 

 is the case with the type oi ferrandii. I prefer to leave the status of 

 the latter until more material is available. 



RIOPA ANCHIETAE (Socage) 



Eumecia anchietae Bocage, 1870, Jorn. Sc. Lisboa, vol. 3, p. 67, pi. 1 (Huilla 



Plateau, Mossamedes) . 

 Lygosoma anchietae Boulenger, 1887, Cat. Lizards Brit. Mus., vol. 3, p. 316. 



7 (U.S.N.M. 49028-34) Kenya Colony. (Heller) 1911. 



7 (U.S.N.M. 49061-5, 49392, 49810) Kaimosi, K.C. (Heller) 1911. 



« Proc. Zool. Soc. London, p. 859. 



