shakes of east africa. 629 



7. Hemirhagerrhis. 

 Boettg. Zool. Anz. 1893, p. 119; Bouleng. Oat. Su. iii. p. 119. 



1. Hemirhagerrhis kelleri Boettg. 1. c. ; Bouleng. 1. c. 

 Somaliland and British East Africa. 



8. Amplorhinus. 

 A. Smith, 111. ZooL S. Afr., Kept. ; Bouleng. Cat. Sn.iii. p. 124. 



Two species :— 



'reuiporals 1 + 2 or 2 + 2 : ventrals 154-187 A. nototwrna. 



Temporals 3 + 4; ventrals 147 ^. tcBniatas. 



1. Amplorhinus notot.ienia. 



Coronella nototcenia Giinth. P. Z. S. 1864, p. 309, pl.xxvi. fig. 1. 

 Amplorhimis nototcenia Bouleng. t. c. p. 125. 

 Amjjlorhinus guntheri Mocquard. Bull. Mus. Paris, 1896, 

 p. 251. 



Egyptian Soudan to Nyassaland ; Angola. 



2. Amplorhinus t^eniatus Sternf. Mitth. Zool. Mus. Berl. iv. 

 1908, p. 241. 



Lamu Id., British East Afiica. 



9. Trimerorhinus. 



A. Smith, 111. Zool. S. Afr.. Rept. ; Bouleng. Cat. Sn. iii. 

 p. 138. 



Two species : — 



Rostral as deep as broad, its upper portion at least half as long as 



its distance from the frontal T. trUceniatun. 



Rostral slightly broader than deep, its upper portion about one 



third its distance from the frontal T. variabilis. 



1 . Trimerorhinus trit^niatus. 



Rhagerrhis tritceniata Giinth. Ann. & Maff. N. H. (4) i. 1868, 

 p. 423, ph xix. fig. H. 



Trimei'orhiwas tritceniatus Bouleng. t. c. p. 139. 



East, Central, and South Africa. 



Probably only a variety of the S. African 2\ rhomheatas. 



2. Trimerorhinus variabilis. 



Psammojihylax variabilis Giinth. P. Z. S. 1892, p. 557, pi. xxxv. 

 Tyimerorhinus variabilis Bouleng. t. c. p. 140. 

 Nyassaland . 



