380 



GEOGRAPHICAL ZOOLOGY. 



[part IV. 



Family 15.— LYCODONTID^. (11 Genera, 35 Species.) 



General Distribution. 



Nkotropical 

 sub-eegionr. 



Nearctic 

 Sub-regions. 



Pal^arctic 

 sub-hegions. 



Ethiopian 

 Sub-regions. 



Oriental 

 Sub-regions. 



Australian 

 sub-beoions. 



1.2.3—1.2.3.4 1 



The Lycodontidse, or Fanged Ground Snakes, are confined to 

 the Ethiopian and Oriental regions, over the whole of which they 

 range, except that they are absent from Madagascar and extend 

 eastward to New Guinea. The genera have often a limited dis- 

 tribution : — 



Lycodon ranges from India and Ceylon to China, the Philip- 

 pines, and New Guinea; Tetragonosoma, the Malay Peninsula 

 and Islands; Leptorhytaon and Ophites, India ; Gercaspis, Ceylon ; 

 and Cyclocorus, the Philippines. The African genera are Bomdon, 

 Lycophidion, Hohiropholis, Simocephalus, and Lamprophis, the 

 latter being found only in South Africa. The species are nearly 

 equally abundant in both regions, but no genus is common to 

 the two. 



Family 16.— AMBLYCEPHALID^. (5 Genera, 12 Species. 



General Distribution. 



The Amblycephalidse, or Blunt Heads, are very singularly 

 distributed, being nearly equally divided between Tropical 

 America and the eastern half of the Oriental region, as will be 

 seen by the following statement of the distribution of the 

 genera : — 



Amblycephalus (1 sp.), Malay Peninsula to Borneo and the 

 Philippines ; Pareas (3 sp.), Assam, China, Java, and Borneo ; 



