262 



I. Tail cylindrical, obliquely truncated, xoith aflat superior disk. 

 Uropeltina. 



1. Siloboura, Gray. 



Tail obliquely truncated ; disk oblong, covered with rhombic, two- 

 or four-keeled scales, the scales on the lower edge of the disk larger, 

 tubercular above, and having two acute tubercles on its sharp lower 

 edge. 



* Scales of caudal disk four-keeled. 



1. Siloboura Ellioti (fig. 1). B.M. 

 Siloboura ceylonica, Gray, Cat. Brit. Mus. 142 (notCuvier). 



Caudal disk oblong, elongate; scales of the disk four-keeled; brown, 

 with a narrow yellow streak on each side of the neck, a broad yellow 

 band in front of the vent continued in a band on each side of the 

 tail. 



Var. Larger scales of caudal disk three- or four-keeled. 



Hab. Madras (Walter Elliot, Esq.). 



** Scales of caudal disk two-keeled. 



2. Siloboura Ceylonica. B.M. 



Uropeltis Ceylonicus, Cuvier, R. A. ii. 76 ; Cocteau, Mag. Zool. 

 1833, t. 2 (not S. Ceylonica, Gray, Cat.); Muller in Tiedemann's 

 Zeitsch. Phys. iv. 252, 273. t. 21. f. 4, 5, skull? 



Siluboura Ceylonicus, Kelaart, Prod. Fauna, 156. 



Pseudotyphlops ceylanicus, Schlegel, Abbild. 45. 



Coloburus Ceylonicus, Dum. & Bib. Erp. Gen. vii. 164. t. 59. f. 3. 



Caudal disk roundish, oblong ; scales of disk two -keeled ; black, 

 a broad irregular yellow band on each side of the neck from the 

 angle of the mouth, and some yellowish marbling on the sides of 

 the body becoming more obscure behind ; a broad yellow cross band 

 in front of the vent, continued in a broad band to the sides of the 

 tail. 



Hab. Ceylon. 



2. Uropeltis. 



Tail obliquely truncated; disk roundish, covered with a single 

 flat roundish granulated shield. 



1. Uropeltis grandis. B.M. 



Uropeltis (sp. ?), Kelaart, Prodromus, 155. 

 " Uropeltis grandis, Kelaart." In Brit. Mus. 



Caudal disk subcircular, with large scattered tubercles ; nose 

 • subacute, rather produced ; dark brown ; chin and beneath yellowish 

 brown, with some of the scales dark brown in the centre near the 

 hinder edge. 



Hab. Ceylon {Kelaart). Dr. Kelaart's type specimen. 



