130 PROCEEDINGS OF THE NATIONAL MUSEUM vor,. 91 



to heel, and above anus a narrow white line. Below, creamy white 

 sparsely mottled with brown (or uniform) ; limbs brownish merging 

 into purplish brown on palms and soles. 



Measurements. — ^Length from snout to anus of type 5 , 28 mm. ; of 

 paratype 5 9 from Gbanga and Gibi, 29 and 33 mm., respectively; 

 of paratype $ , 29 mm. ; of a juvenile, with rudiment of tail still 

 visible, 15 mm. 



MEGALIXALUS FULVOVITTATUS (Cope) 



1860. Hyperolius fulvovittatus Cope, Proc. Acad. Nat. Sci. Philadelphia, 1860, 



p. 517 (Liberia). 

 1876. EypcroUus vittiger Petebs, Monatsb. Akad. Wiss. Berlin, 1876, p. 122 



(Liberia). 



17 $ $, 5 9 9 (U.S.N.M. Nos. 109534-53, 109664-5), Bendaja 



2 9? (U.S.N.M. No. 109618-9), Harbel 



9 (U.S.N.M. No. 109672), Reputa 



S (U.S.N.M. No. 11318), Cape Mount 



All possess the characteristic chocolate-brown dorsal stripes. 

 Length of S $ , 23-27 mm., average 24 mm. ; length of ? 2 , 24- 

 27 mm., average 26 mm., being somewhat less than that of the 

 enormous series from Ganta, Liberia, reported on elsewhere (Love- 

 ridge, 1938, p. 66). 



MEGALIXALUS PLATYCEPS (Boulenger) 



1900. Rappia platyceps Botji.enger, Proc. Zool. Soc. London, 1900, p. 444, pi. 27, 

 fig. 4 (Benito River, French Congo). 



$ (U.S.N.M. No. 109533), Bendaja 

 $$ (U.S.N.M. Nos. 109616-7), Harbel 



A broad vertebral band or hourglass pattern, dorsal spinosities, 

 and vertical pupil present in all. Length oi $ $ , 26-29 mm. See 

 remarks in Loveridge (1938, p. 66) . 



HYPEROLIUS CONCOLOR (Hallowell) 



1844. Ixalus concolor Hallowell, Proc. Acad. Nat. Sci. Philadelphia, 1844, 

 p. 60 (Liberia). 



3 $ 9 (U.S.N.M. Nos. 109531-2, 109655), Bendaja 

 9 (U.S.N.M. No. 109669), Reputa 

 9 (U.S.N.M. No. 110447), Harbel 



Fourth and first toe with one phalange free of web, third scarcely 

 {riggenbachi) or fully {concolor) webbed, second and fifth fully 

 webbed to disks. Three subadult frogs (U.S.N.M. Nos. 109531-2, 

 109655) are typically riggenbachi Nieden in their dorsal markings, 

 but Mertens (1938, p. 27) considers this to be the juvenile stage of 

 concolor^ stating that a riggenhacM, which he captured in the Cam- 

 eroons, transformed in his vivarium to a typical, uniform concolor. 



