A Revision of the Lizards of the Genus Nucras, Gray. 205 



3. NUCRAS BOULENGERI. 



Nucras boulengeri, O. Neumann, Ann. and Mao;. N. H. (7), v, 1900, 

 p. 56 ; Sterufeld in Sclmbotz, Wiss. Ergebn. Deutsch. Z.-Afr. Exped., 

 iv, ii, p. 222 (1912) ; Nieden, Mitt, Zool. Mus., Berl., vii, 1913, p. 76. 



" Body elongate; head not depressed, its length (to ear-opening) con- 

 tained 4|- to 5 times in the length from snout to vent ; two postnasals ; 

 no granules between the supraoculars and the superciliaries ; inter- 

 parietal not so long and narrow as in N. tessellata and N. delalandii ; 

 occipital very small ; subocular bordering the lip between the fourth 

 and fifth upper labials ; two supratemporals bordering the parietals ; 

 tympanum half as large as the ear-opening. Dorsal scales small, 

 pointed behind, larger on the sides of the body ; 45 to 53 scales round 

 the body ; ventrals in 6 longitudinal and 27 to 30 transverse series. 

 Femoral pores 11 or 12. Foot much shorter than the head. Tail 

 thinner than in N. tessellata and N. delalandii, lj to 1^ as long as 

 head and body.* Colour brown above, with small indistinct blackish 

 spots ; bluish white boneath." 



Distinguished from N. delalandii by the smaller size, the smaller 

 and pointed dorsal scales, fewer ventrals, and the shorter foot. 



Lubwas, Usoga, British East Africa (two specimens). 



This species, which is only known to me from the above description, 

 appears to be perfectly distinct. 



A third specimen, a male 63 mm. long from snout to vent, from 

 Lake Victoria, has since been described by Sternfeld. 51 scales round 

 the body, ventrals in 8 longitudinal and 34 transverse series, 12 femoral 

 pores on each side. A fourth, from the Eldaina River, British East 

 Africa, with 10-11 femoral pores, has been noticed by Nieden. 



4. NTJCRAS INTERTEXTA. 



Forma typica. 



Lacerta intertexta, A. Smith, Mag. N. H. (2), ii, 1838, p. 93.f 

 Lacerta delalandii, var. &, Dum. & Bibr. Erp. G-en., v, p. 243 (1839). 



* Tail probably regenerated. In the specimen noticed by Nieden, it is 

 nearly twice as long as head and body. 



f The type specimen, described by A. Smith and by Dumeril and Bibron, 

 was presented to the British Museum by the former author in 1865, tinder the 

 name of L. delalandii, along with the types of the other Nucras in his private 

 collection, and its absolute concordance with the original description was over- 

 looked by me, when, following Smith himself, I placed L. intertexta in the 

 synonymyof N. delalandii. Although not labelled as such, the specimen is cer- 

 tainly A. Smith's type. It was referred by me to N. tessellata. 



