40 
Annals of the Transvaal Museum. 
Date. Donor. 
6 
Serowe 
Blackbeard 
Hobson 
8 to 11 
No records (C.C. ?) 
Bitis inornata {Smith). 
A. 1 
Gape Puff Adder. 
Brakkloof, Grahams- 1892 White 
town 
Bitis perinoueyi Boulenger. 
A. 1 
Per inguey' s Puff Adder. 
No records (C.C.) 
Atractaspis bibroni Smith. 
Oviparous Adder. 
Shilowane, Zoutpans- 1904-5 Junod 
berg District 
Atractaspis duerdeni Gough. 
Snout prominent, subcuneiform, rostral with a rounded 
horizontal edge ; the portion visible from above a little longer 
than its distance from the frontal. Internasals and prse- 
frontals much broader than long. Suture between the 
internasals shorter than that between the praefrontals. 
Frontal broader than long, shield shaped, longer than 
its distance from the end to the snout. Longer than the 
parietals an azygous enlarged shield behind the parietals. 
One prae- and one post-ocular ; a large temporal wedged 
in between the fourth and fifth upper labials ; five upper 
labials, first very small, third and fourth entering the eye, 
fourth largest. 
Posterior nasal much larger than the anterior. 
First lower labial in contact with its fellow behind the 
symphysal ; three lower labials in contact with the chin- 
shields, third very large, corresponding with the second, 
third and fourth labials. 
Two pairs of chin-shields, first pair very large and broad, 
second pair two-thirds the length of the first and much 
narrower, wedged in between the first chin-shield and the 
labial, their posterior tips separated by three scales, of which 
the middle one is slightly enlarged. 
Scales in 21 rows. Yentrals 199. Anal entire. Sub- 
caudals 22 ; all except the first entire. 
Cream coloured above and below. 
Serowe 
District. 
Date, Donor. 
1904 Blackbeard 
(type) 
A. 1 
