10 Lacertidx. 



Head 4J to 5^ times in length to vent; foot not longer than 

 head ; pai-ietal foramen usually absent ; 34 to 42 scales 

 across middle of body ; ventrals in 82 to 37 transverse series ; 

 transversely enlarged plates under the fore-arm absent or 

 small 2. IV. delalandii, M.-Edw., p. 13. 



Head 4i to 5 times in length to vent ; foot shorter than head ; 

 45 to 53 scales across middle of body ; ventrals in 27 to 34 

 transverse series . . . . 3. IV". houlenrjeri, O. Neum., p. 16. 



II. A series of 2 to 7 small scales between the supraoculars and the superciliaries ; 

 40 to 60 scales across middle of body ; transversely enlarged plates 

 under the foi-e-arm. 



Head 3jj to 4.t times in length to vent ; not or but little broader 

 than deep ; foot not or but slightly longer than head ; 

 parietal foramen usually present ; ventrals in 27 to 34 

 transverse series ; 20 to 26 lamellar scales under the fourth 

 toe . . . . . . . 4. IV". intertexta, A. Smith, p. 17. 



Head 4 to 4| times in length to vent, considerably broader 

 than deep ; foot considerably longer than head ; parietal 

 foramen usually absent; ventrals in 25 to 33 transverse 

 series ; 25 to 31 lamellar scales under the fourth toe. 



5. N. tessellata, A. Smith, p. 24. 



1. NUCRAS EMINI. 



Nucnis delalandii, Toruier, Zool. Jalirb., Syst. xiii, 1900, p. 593. 



Nucras emini, Bouleng. Ann. & Mag. N. H. (7) xix, 1907, 

 p. 488; Niedeu, Mitt. Zool. Mus. Berl. vii, 1913, p. 76; Bouleng. 

 Ann. S. Afr. Mus. xiii, 1917, p. 199. 



Nucras ukerewensis, Bollcay, Areliivum Zool. (Budapest), i, 1909, 

 p. 13, figs. 



Nucras tessellata, Sternf. in Scliubotz, Wiss. Ergebu. Deutsch. 

 Z.-Afr. Exped. iv, 2, p. 222 (1912). 



But for the longer tail, proportions niucli as in Lacerta agilis. Head 

 a little broader than deep, 1? to 1^ times as long as broad, its length 

 4 to 4^ times in length to vent in males, 5 times in females ; snout 

 obtuse ; cheeks swollen in the male. Pileus twice as long as broad. 

 Body scarcely depressed. Hind limb reaching the wrist or the axil in 

 males, the limbs barely meeting when adpressed in females ; foot as 

 long as the head or a little longer ; digits feebly compressed. Tail 

 usually twice as long as head and body. 



Nasals in contact behind the rostral ; frontonasal broader than 

 long ; prsefrontals usually forming a median suture, or, rarely, frontal 

 narrowly in contact with the frontonasal ; frontal 1| to If times as 



