1900.] BATRACHIANS AND REPTILES OF THE GABOON. 445 



the upper eyelid ; tympanum hidden. Outer fingers one-fourth 

 webbed ; toes two-thirds webbed ; disks rather large. The tibio- 

 tarsal articulation reaches the eye. Skin smooth, faintly areolate 

 on the belly. Pale brownish above, with a large blackish-brown 

 marking with indentations extending from between the eyes to the 

 sacral region ; sides of head and body and upper surface of legs 

 blackish brown ; a whitish spot on the leg above the tibio-tarsal 

 articulation ; upper surface of thigh whitish, with a narrow dark 

 brown streak; lower parts white. 



From snout to vent 29 millim. 



Two specimens from the Benito River (0. L. Bates). 



34. Eappia pusilla Cope. 

 Hab. Niger Delta to Gaboon. 



35. Megalixaltjs fortjasinii Bianc. 



Merjalixalus fomasinii, Werner, Verb, zool.-bot. Ges. Wien, 

 xlviii. 1898, p. 195. 



Hi/perolius dorsalis, Peters, Mon. Berl. Ac. 1875, p. 206, pi. i. 

 fig. 2. 



Hyperolius leptosomus, Peters, op. tit. 1877, pi. 619, pi. — . fig. 5. 



Megalixalus leptosomus, Mocq. Bull. Soc. Phdom. (8) ix. 1897, 

 p. 19. 



Hab. Gold Coast to Congo, Nyassaland, East Africa from the 

 Zanzibar Coast to Delagoa Bay. 



36. Chiromantis rufescens Ptrs. 

 Hab. Camaroons, Gaboon. 



37. Hylambates rufus Eeichen. 



Hab. Fernando Po, Camaroons, Gaboon. 



38. Hylambates breyirostris Werner. 



Hylambates brevirostris, Werner, Verb, zool.-bot. Ges. Wien, 

 xlviii. 1898, p. 199, pi. ii. figs. 5 & 6. 



In addition to the characters given by Werner from Cama- 

 roons specimens, this well-marked species is easily distinguished 

 from H. rufus by the more dorsal position of the tympanum. 

 The only specimen obtaiued by Mr. Bates on the Benito River is 

 uniform purplish above. 



Deistjrobatidje. 

 Cardioglossa, g. n. 



Pupil horizontal. Tongue large, cordiform, deeply notched 

 behind. Tympanum distinct. Fingers and toes free, the tips 

 dilated into regular disks. Outer metatarsals united. Omoster- 

 num with a slender bony style ; sternum a small cartilaginous 

 plate, without bony style. Terminal phalanges T-shaped. 



Proc. Zool. Soc— 1900, No. XXX. 30 



