DIVISION: OPISTHOGLYPHA. 1Z7 
Genus DISPHOLIDUS. 
This Genus is vepresented by one Species. 
KEY TO THE SPECIES. 
Scales keeled in 19 or 21 rows. Eye very large. See 
synopsis of genera of Dipsadomorphine .. .. Dispholidus typus 
1. DISPHOLIDUS TyPUS. Tree Snake or Boomslang. 
Synonyms—Bucephalus typus; Dispholidus lalandu ; Bucephalus 
capensis ; Dendrophis pseudodipsas. 
Colour—tThe colour is variable. The colourations of the various varieties 
are as follows :— 
A. Brown above, upper lip and lower parts yellowish or greyish ; 
young with darker and lighter spots, and the belly speckled 
with brown. 
B. Olive-brown above, yellowish beneath, scales and shields edged 
with blackish. 
C. Green above, uniform, or scales narrowly edged with black. 
D. Green or olive above, all the scales and shields edged with black ; 
head often much spotted with black. 
E. Black above, each scale with a yellowish or greenish spot; head 
spotted or marked with black ; ventrals and sub-caudals yellowish 
edged with black. 
F. Uniform black above, blackish grey beneath. 
G. Brownish-black above. Light yellow beneath. The abdominal 
shields blotched with dark brown on their sides, and edged with 
a narrow line of brown. 
Average length—4 to 5 feet. Some specimens attain a length of over 
6 feet. 
Distribution—Common all over South Africa in bush-clad localities; 
North to Tropical Africa. . 
Genus AMBLYODIPSAS. 
This Genus is represented by one Species. 
KEY TO THE ‘SPECIES. 
Scales in 15 rows. No internasals; sub-caudals in two rows; head 
small, not distinct from neck. Refer to synopsis of the genera of 
the sub-family Dipsadomorphine. 
1. AMBLYODIPSAS MICROPHTHALMA. The White-lipped Snake. 
Synonym—Calamaria microphthalma. 
Colour—Dark brown above ; uppewtlip, two outer rows of scales, outer 
ends of ventrals, and lower surface of head and tail white; a 
dark brown stripe along the middle of the belly. 
Average length—1 foot 6 inches. 
Distribution—Zululand ; Portuguese East Africa. 
Genus CALAMELAPS. 
Two Species in South Africa. 
KEY, TO EHE SPECIES: 
Scales in I9 rows; ventrals 161-174 .. ae .. Calamelaps warreni. 
Scales in 17 rows; ventrals 133-134.. ae .. Calamelaps concolor. 
