106 On new Reptiles and Batrachians from Madagascar. 



webbed to the disks ; disks as large as the tympanum ; sub- 

 articular tubercles moderate ; a small inner metatarsal 

 tubercle. The tibio-tarsal articulation reaches the tip of the 

 snout. Skin smooth above, granular on the throat and belly ; 

 the gular granules very unequal in size ; a strong fold from 

 the eye to the shoulder ; a slight dermal ridge along the outer 

 side of forearm and tarsus. Bluish above (green in life), 

 limbs with rather indistinct narrow darker cross bands ; 

 a white streak round the upper lip and along the outer side 

 of forearm and tarsus ; lower parts pale brownish. Male 

 with an external vocal sac on each side behind the angle of 

 the mouth. 



From snout to vent 75 millim. 



A single male specimen. Eastern Imerina {R. Baron). 



ManteUa Baroni. (PI. VI. fig. 2.) 



Differs from M. hetsileo in having the skin of the back 

 smooth, not granular, and in coloration. Head, body, fore 

 limbs, and femora black ; tibife, tarsi, and feet reddish (ver- 

 milion during life ?) ; a greenish streak along the supraciliary 

 edge and the canthus rostralis, continuous with its fellow on 

 the other side ; a very large, circular, greenish spot at the 

 shoulder, continued as a band along the upper surface of the 

 fore limb to the wrist ; another similar large spot at the 

 groin, continued on the femur; three roundish greenish spots 

 on the chin, a pair on the belly, one under the elbow, and one 

 under each thigh ; upper surface of tibia and tarsus with 

 irregular, large, black spots or cross bars. Male with an 

 internal subgular vocal sac. 



From snout to vent 27 millim. 



A single male specimen {R. Baron). 



Platypelis poUicaris. (PI. VI. figs. 3, 3 a.) 



Head as long as broad ; snout rounded, as long as the 

 diameter of the eye ; canthus rostralis scarcely distinct ; inter- 

 orbital space a little broader than the upper eyelid ; tym- 

 panum two fifths the diameter of the eye. Fingers with a 

 rudiment of web, first shorter than second, third much longer 

 than the others, the tips dilated in rather large round disks ; 

 a large, oval, compressed tubercle or rudimentary inner 

 linger ; toes short, one-third webbed ; inner metatarsal tubercle 

 narrow, very feebly prominent. The tarso-metatarsal articu- 

 lation reaches beyond the end of the snout. Skin smooth. 

 Brownish above, with small darker and lighter marblings ; 



