1(U G. A. BOULENGER 



Tips of fingers and toes dilated into 

 distinct disks; inner metatarsal tuber- 

 cle nearer the tarsal tubercle. . . . 10. A. baiesii, Blgr. 1906. 



2. A conical or spine-like tubercle on 

 the upper eyelid; tips of fingers and 

 toes dilated into distinct disks. 



Tibio-tarsal articulation reaching the 

 tip of the snout or between the eye 

 and the tip of the snout; foot at least 



half the length of head and body . . 11. A. calcaratm^ Peters. 1863. 



Tibio-tarsal articulation not reaching 

 beyond eye; foot not half length of 



head and body 12. A. cornutus, Blgr. 1906. 



. Toes one fourth to one third webbed; 

 no spine-like tubercle on the upper 

 eyelid. 



Tips of fingers and toes dilated into 

 very distinct disks; inner metatarsal 

 tubercle considerably nearer to the 



outer than to the tarsal tubercle . . 13. A. dispar, Peters. 1870. 



Tips of fingers and toes dilated into 

 very distinct disks; inner metatarsal 

 tubercle nearly equally distant from 



the outer and from the tarsal tubercle 14. A. feae, Blgr. 1906. 



Tips of fingers and toes very slightly 

 swollen ; inner metatarsal tubercle 

 nearly equally distant from the outer 



and from the tarsal tubercle . . . . 15. A. parvulus, Blgr. 1905. 

 , Toes nearly half webbed. 



Tips of fingers and toes very slightly 

 swollen; tibio-tarsal articulation reach- 

 ing the eye 16. A. hottegi, Blgr. 1895. 



Tips of fingers and toes very slightly 

 swollen; tibio-tarsal articulation rea- 

 ching tip of snout 17. A. mooriiy Blgr. 1898 (^). 



Tips of toes dilated into very distinct 

 disks; tibio-tarsal articulation reaching 



the eye 18. A. ogoensis, Blgr. 1906. 



28. Gampsosteonyx batesii, Blgr. 

 Cameroon: Buea, 800-1200 m. 



29. Petropedetes cameronensis, Reichen. 

 Cameroon: Buea, 800-1200 m. 



(1) In addition to the type, from the south end of Lake Tanganyika, I have ex- 

 amined a specimen, apparently of the same species, obtained by the late Mr. Greshoff 

 at the Stanley Pool. 



