snakes of west africa. 291- 



13. Calamelaps. 



Gunth. Ann. & Mag. N. H. (3) xviii. 1866, p. 26 ; Bouleng. 

 Cat. Sn. iii. p. 245. 



Two species : — 



Scales in 17 rows ; 6 upper labials, 3rd and 4tli entering the ej'e C. unicolor. 



Scales in 15 rows; 5 upper labials, 2iid and 3rd entering the eye C.fea. 



1. Calamelaps UNICOLOR. 



Calamaria unicolor Reinh. Vid. Selsk. Skr. x. 1843, p. 236, 

 pi. i. figs. 1-3. 



CalmnelajJs unicolor Bouleng. I.e. 

 Sierra Leone to Niger ; East Africa. 



2. Calamelaps fe^ Bouleng. Ann. Mus. Genova, (3) ii. 1S06, 

 p. 214, fig. 



Portuguese Guinea. 



14. MiODON. 



A. Dum. Arch. Mus. x. 1859, p. 206 ; Bouleng. Cat. Sn. iii. 

 p. 249. 



Synojisis of the Sjjecies. 



I. Anal entire; ventrals 190-216 ". M. acantliias. 



II. Anal divided. 

 Internasals considerably shorter than the pra?fiontals ; nasal divided; 



ventrals 201-228 M. collarts. 



Internasals as long as or slightly shorter than the pvaefrontals ; nasal 



entire or incompletely divided; ventrals 214-249 II. gahonen^is. 



Internasals as long as or slightly shorter than the ]/ra'frontals; nasal 



divided; ventrals 181-214 31. notatns. 



1. MiODON acanthias. 



Urohelus acantliias Reinh. Vid. Meddel. 1860, p. 229, pi. iii. 

 Miodon acanthias Bouleng. t. c. p. 250. 

 Gold Coast, Ashantee, Nigeria, 



2. MionoN collaris. 



Microsoma collare Peters, Sitzb. Ges. Naturf. Fr. Ber]. 1881, 

 p. 148. 



Miodon collaris Bouleng. t. c. p. 251. 



Old Calabar to Angola. 



3. MiODCN gaeokensis. 



Elaj)omorphv.s gabonensis A. Dum. Rev. et Mag. Zool. (2) 

 viii. 1856, p. 468. 



Miodon gabonensis Bouleng. t. c. p. 252. 



Old Calabar to Congo, eastwards to the Ituri. 

 Proc. Zool. Soc— 1919, No. XXI. 21 



