ARCHIVUM ZOOLOGICUM 
NO 3. 
Editum est die 15. XII. 1909. 
Vol. I. 
Description of a new lizard from the Genus Nucras Gray. 
By Dr. S. J. Bolkay. 
Mr. K. Katona, colleclor of the Hungarian Zoological Laboratory, lately 
sent a small collection of Amphibia and Reptiles from Schirati on Ihe shores of 
Lake Victoria (German East Africa). 1 found in this collection a species of lizard 
unknown tili to-day for which I propose the name of: 
Nucras ukerewensis nov. sp. (fig. 1.) Body rather shorl; head not depressed, its 
length (to ear-opening) contained 42 times in the length from end ofsnont to vent. 
Head shields slightly rugose; two superposed postnasals; no grannles between the 
Fig. 1. Nucras iikereivensis n. sp. (Nat. size.) Fig. 2. Temporal region. (5;1 Nal. size.) 
supraoculars and the supraciliaries; interparietal wedge-shaped, very long and narrow, 
its breadth contained 2'3 Ihnes in its length; its posterior point in contact wilh a 
very small, triangulär occipital ; suhocnlar bordering the lip between the fourth and 
fifth npper lahials; lower pari of the temple (fig. 2.) covered with large, smooth 
shields, its upper part below the supratemporals granulär; two very large superposed 
tympanic shields; two large and one small supratemporal on each side. Collar 
strongly toothed, the median shield very broad (fig. 3.). 
Before the trne collar fonr large strongly imbricate shield-rows are to be 
fonnd. 
These shield-rows are very conspicuons, becanse they foim, together with 
the trne collar, a fivefold one. Dorsal scales small, granulär, smooth, larger on the 
sides, where they pass into the ventrals; 42 scales across the middle of the body; 
venlrals in 6 longitudinal and 32 transverse series; the median pair is much nar- 
rower, than the adjoining ones. The large praeanal, as well as the anal, girdled 
in a hemicircle by a series of small 'scales. Limbs short, the hind limb reaches the 
