366 Zoological Society: — 



The following table shows the geographical distribution of the 

 species here recorded : — 



Eastern Hemisphere. 



Fam. Trogonophida. 



1 . Trogonophis Wiegmanni. North Africa. 



Fam. Amphisbcenidce. 



2. Blanus cinereus. Spain, North Africa, Asia Minor. 



3. Amphishoinal violacea. East Africa. 



4. Cynisca leucura. Guinea. 



5. Baikia africana. West Africa. 



Tribe Cephalopeltinee. 



6. Monotrophis capensis. South Africa. 



7. Balophia Welwitschii. West Africa. 



Western Hemisphere. 

 Fam. ChirotidcB. 



1. Chirotes lumbricoides. Mexico. 



Fam. AmphisbcenidcB. 



2. AmphisbcBna alba. Brazil. 



3. A. americana. British Guiana. 



4. A. Petreei. Brazil. 



5. A. vermicularis. Brazil. 



6. A. Darwinii. Monte Video, Buenos Ayres. 



7. Bronia brasiliana. Brazil. 



8. Sarea cceca. West Indies. 



9. Cadea punctata. Cuba. 



10. Anops Kingii. Buenos Ayres. 



Fam. Lepidosternidce. 



1 1 . Lepidosternon microcephalum. Brazils. 



12. L. Grayii. Tropical America. 



13. L. phoccena. Buenos Ayres. 



Tribe Cepholopeltina. 



14. Cephalopeltis lepidosterna. Brazils. 



The rings of oblong scutella on the skin are in most species inter- 

 rupted on the sides, and in some species also on the vertebral line ; 

 these interruptions form a more or less wide depressed groove on the 

 surface of the body, and are called the lateral and dorsal lines. 



The skin at this interruption is usually marked at each transverse 

 ring with two oblique grooves, which form a cross and divide the 

 space into four minute triangular shields ; in some cases, where the 

 line is wider and less sunken, the transverse ring of shields is only di- 

 vided at the sunken line by a single oblique groove caused by the 



