G. A. BOULENGER—REPTILIA. 247 
each side of the head, from above the nostril to above the last labial shield ; the end 
of the tail is black or blackish. 
The largest specimen measures 630 mm., in which the tail enters for 85. 
[Several specimens of this very distinct species were obtained in the Mubuku Valley, 
E. Ruwenzori, between 6000 and 6500 fect altitude. 
This fine Snake may sometimes be seen coiled up round the stem of elephant-grass 
10 feet above the ground, One cf the specimens contains embryos.—L. B. W.] 
