A Revision of the Lizards of the Genus Nucras, Gray. 201 



Particulars of Specimens Examined. 



1. 2. 3. 4. 5. 6. 7. 



c?,Loika . 63 42 29 10 21 11-10 17 



Hgr. <? , type. . 46 42 28 8 18 12 18 



1. Length from end of snout to vent (in millimetres). 2. Number of scales 

 across middle of body. 3. Transverse series of ventral plates. 4. Plates in 

 collar. 5. Gular scales in a straight line between symphysis of chin-shields 

 and median collar-plate. 6. Femoral pores (right and left if differing). 

 7. Lamellar scales under fourth toe. 



The type is from the southern shore of Lake Victoria, from the 

 collection of Emin Pasha. A second specimen, from Loika, British 

 East Africa, from the collection of Mr. W. P. Lowe, is preserved in 

 the British Museum. A third, from Shirati, east shore of Lake 

 Victoria, has been described and figured by Bolkay as N. vikerewensis. 



The lizard from Katoma, German East Africa, shortly noticed by 

 Tornier under the name of N. delalandii, is referred to this species 

 by Nieden. It is stated to have 40 scales across the body, 30 trans- 

 verse series of ventral plates, 14 femoral pores, and the foot a little 

 longer than the head. Specimens from Ilkamba and Taita, also 

 referred to this species by Niedeu, have 42 to 51 scales across the 

 body, 26 to 31 transverse series of veutrals, and 12 to 14 femoral 

 pores on each side. Sternfeld's " N. tessellata " is from the Kili- 

 manjaro district. 



2. NUCRAS DELALANDII. 



Lacerta lalandii, M.-Edw., Ann. Sc. Nat,,xvi, 1829, pp. 70, 84, pi. v, 

 fig. 6. 



Eremias (Nucras) lalandii, Gray, Ann. N. H., i, 1838, p. 280. 



Lacerta delalandii, vars. a, c, Dum. & Bibr. Erp. Gen., v, p. 241, 

 pi. xlviii (1839). 



Nucras lalandii, Gray, Cat. Liz., p. 33 (1845). 



Bettaia delalandii, Bedriaga, Abh. Senck. Ges., xiv, 1886, p. 435, 

 pi. -figs. 1,5,35. 



Nucras delalandii, Bouleng., Cat. Liz., iii, p. 53 (1887) ; Werner, 

 Jahrb. Nat. Ver. Magdeb., 1896-98, p. 141 ; Bouleng., Ann. S. Afr. 

 Mus., v, 1910, p. 475. 



Nucras delalandii, var. bedriagai, Werner, I.e. 



Head small, not or but slightly broader than deep, 1|- to If times as 

 long as broad, its length 4 to 5 times in length to vent in males, 5 

 to 5| times in females ; snout very obtuse. Pileus If to 2 \ times as 

 long as broad. Body much elongate, cylindrical. Limbs short, just 



