378 
GEOGRAPHICAL ZOOLOGY. 
[PAKT IV. 
Family 11. — DENDROPHIDiE. (7 Genera, 35 Species.) 
General Distribution. 
N EOTROPICAL 
Sub-regions. 
NE ARCTIC 
S UB-BEGIONS. 
Pal^arctic 
SuB-REGIONS. 
Ethiopian , 
Sub-regions. 
Oriental 
Sub-regions. 
Australian 
Sub-regions, 
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The Dendrophidse, or Tree Snakes, are found in all the Tropical 
regions, but are most abundant in the Oriental. The genera are 
distributed as follows : — - 
JDendrophis ranges from India and Ceylon to the Pelew 
Islands and North Australia, and has one species in West Africa; 
Ahaitulla is almost equally divided between Tropical Africa and 
Tropical America ; Gonyosoma ranges from Persia to Java and the 
Philippines ; Chrysopelea is found in India, Borneo, the Philip- 
pines, Amboyna, and Mysol ; Hapsidrophis and Bucephalus are 
confined to Tropical Africa; and It1iycyphus],(l sp.), is peculiar 
to Madagascar, 
Family 12. — BEYIOPHIDHS. (5 Genera, 15 Species.) 
General Distribution. 
Neotropical 
Sub-regions. 
N earCtic 
Sub-regions. 
Paljearctio 
Sub-regions. 
Ethiopian 
Sub-regions. 
Oriental 
Sub-regions. 
Australian 
Sub-regions. 
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The Dryiophidse, or Whip Snakes, are a very well characterised 
family of slender, green-coloured, arboreal serpents, found in the 
three tropical regions but absent from Australia, although they 
just enter the Australian region in the island of Celebes. In 
Africa they are confined to the West Coast and Madagascar. 
The genera are 
Dryiophis (4 sp.), Tropical America and West Africa : Tropi- 
dococcyx (1 sp.), Central India; Tragops (4 sp.), Bengal to China, 
the Philippines, Java, and Celebes; Passerita (2 sp.), Ceylon 
