150 



MR. A. LOVERIDGE ON 



spot, and are obviously the same species. All the specimens agree- 

 in having 10 longitudinal ventral scale-rows, 17-19 longitudinal 

 dorsal scale-rows, and 34 transverse dorsal scale-rows. 



The colour and scale-character key given by Schmidt * breaks 

 down for the specimen^ (d) to [c/), which, according to the key, 

 would fall under Gerrhosaurus yrandis (Blgr.) of Zululand, 



Both the Lumbo specimens were taken from holes in termite 

 heaps ; in one instance two mungoose (Ilerpestes ivori) were 

 occupying the same burrow, all three creatures being found 

 huddled together at the end of tlie hole. Nearly all the Moro- 

 goro specimens were taken among the rocks bordering the river 

 at the south side of the town. The Dodoma specimen was taken 

 on a rocky kopje in desert country. 



The examination of the stomach of one of the Lumbo specimens 

 revealed small beans and gi-ass with a single leg from a beetle. 

 As ah^eady mentioned, one captive specimen seized and ate a 

 lizard {Eremias sj^ekii). From one of the Lumbo specimens five 

 tapeworms wei-e removed, each about a foot long. 



Gerrhosaurus ntgrolineatus (Hallow). 

 Blgr. Cat. Liz. iii. 1887, p. 122. 



Specimens possibly belonging to this species, and certainly 

 referable to it according to the key and descriptions in the 

 ' Catalogue of Lizaixls,' have been placed under G. jiavigidaris 

 (Gray) for reasons stated below. 



Gerrhosaurus flavigularis (Gray). 

 Blgr. Cat. Liz. iii. 1887, p. 122. 



A large series of Gerrhosaurus of this group were collected at 

 Nairobi, Moschi, Morogoro, Mkuyuni, Dar-es-Salaam, and Lumbo. 

 Also seen at Gonya, Handeni, and Kerogwe. 



In his admirable paper on the " Herpetology of the Belgian 

 Congo," Schmidt t suggests that all South and East African 

 species of this group should be known 'an Jiavigidaris Jiavigidaris ; 

 whilst he proposes to retain the name of nigrolineatus for the 

 West xVlrican forms which have a preponderance of nigrolineatus 

 characters, these to be known as Jiavigidaris nigrolineatus. The 

 key which he applies for the distinguishing of the two races is 

 as follows : — 



CC. Tympanic shield iiavrow ; a dorso-lateral stripe ; dorsals in 



54-64 transverse rows flavigularis. 



D. Dorsal scales in a transverse row 20-26, mode 22 (South and 



East Africa) subsp. flavigularis. 



DD. Dorsal scales 24-28, mode 26 (Angola, Lower Congo). 



subsp. nigrolineatus. 



In our series of thirty-nine specimens only three have 24 scale- 



* Schmidt, Bull. Am. Mus. Nat. Hist, xxxix. 1919, p. 519. 

 t X. c. 



