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THE SNAKES OF SOUTH AFRICA. 
A. Irregular black cross bars ; some of the scales with a whitish spot. 
B. No black spots or bars ; some of the scales with a whitish spot. 
C. With black spots, at least on the anterior part of the back. 
D. Spots and bars absent or very indistinct. 
Average length—3 or 4 feet. 
Distribution—Delagoa Bay ; Portuguese East Africa. 
Grenus PROSYMNA. 
Five Species in South Africa. 
KY Ohi ES SPECIES: 
Scales smooth in 15 rows. Internasal paired; 
two superposed anterior temporals .. .. Prosymna sundevallit. 
Scales smooth in 15 rows.  Internasal single; a 
Scales smooth in 15 rows. Ventrals 131-153; 
Scales smooth in 15 rows. Width of the frontal 
single anterior temporal. Width of the frontal 
not half the width ot the head ; ventrals 167; 
sub-caudals 50 .. she Prosymna frontalis. 
sub-caudals 19-34 . Prosymna ambigua. 
more than half the width of the head; ventrals 
169-185; sub-caudals 38-49 .. ns .. Prosymna bergeri. 
Scales keeled in 17 rows; a single internasal .. Prosymna jani. 
I. 
PROSYMNA SUNDEVALLII. Coppery Snake. Koperachtig Slang. 
Synonyms—Temnorhynchus sundevallii ; Rhinostoma cupreum; Tem- 
norhynchus frontalis. 
Colour—Pale brown above, each scale edged with darker; head 
yellowish, with a more or less distinct brown band between the 
eyes and a large dark brown crescentric blotch bordering the 
parietals posteriorly ; two rows of small brown spots along the 
back ; uniform whitish inferiorly. 
Average length—1 foot. 
Distribution—Both provinces of Cape Colony; Natal; Orange River 
Colony ; Transvaal. 
. PROSYMNA FRONTALIS. Northern Coppery Snake. 
Synonym—Temnorhynchus frontalis. 
Colour—Very similar to the former. 
Average length—1 foot. 
Distribution—German South West Africa; Angola. 
. PROSYMNA AMBIGUA. Grey-Spotted Coppery Snake. 
Synonym—Ligonirostva stuhlmannt. 
Colour—Blackish above, each scale usually greyish in the centre ; lower 
parts whitish or brown. 
Average length—1 foot. 
Distribution—Zululand; German South-West Africa; Southern 
Rhodesia; Angola; East Africa. 
. PROSYMNA BERGERI. West African Coppery Snake. 
Average length—1 foot. 
Distribution—German South-West Africa. 
. PRosyMNA JANI. Black-headed Coppery Snake. 
Colour—Pale reddish-brown above; the greater part of the upper 
surface of the head and nape black, leaving a pale sponton, 
each supraocular and a cordiform one on the middle of the nape ; 
a black cross bar on the neck, followed by a double series of black 
