128 EANID^. 



12. MEGALIXALUS. 



Eucnemis, sp., Tscliudi, Batr. p. oo; Dum. lV Bihr. yiii. p. 525. 

 Hyperolius, sp., Bapp, Arch. f. Naturg. 1842, p. 289; Giinth. Cat. 



p. 85 ; Cope, Nat. Hist. Bev. 1865, p. 116. 

 Rappia, sp., Giinth. Zool. Bee. i. p. 130. 

 Megalixalus, sp., Giinth. Froc. Zool. Soc. 1868, p. 485. 



Pupil vertical. Tongue heart-shaped or subrhomboidal, nicked 

 and free behind. Vomerine teeth none. Tympanum distinct or 

 hidden. Fingers and toes more or less webbed, the tips dilated into 

 large disks. Outer metatarsals not separated. Omosternum and 

 sternum with a bony style. Terminal phalanges obtuse. 



Tropical Africa. 



Synojms of the Species. 



I. Tympanum distinct. 



Fingers half webbed 1. seycliellensis, p. 128. 



Fingers slightly webbed 2. Jlavomacidatus, p. 128. 



II. Tympanum hidden. 



Skin quite smooth above ; tongue 



subrhomboidal 3. madagascariensis, p. 129. 



Skin quite smooth above; tongue heart- 

 shaped 4. leptosomus, p. 129. 



Skin of upper surfaces with very small 



tubercles 5. fornasinii, p. 130. 



Upper surface of head studded with 

 .acute tubercles 6. spinifrons, p. 130. 



Skin of upper surfaces covered with 

 spinous warts ; fingers two-thirds 

 webbed 7. sjoinosus, p. 130. 



1. Megalixalus seycliellensis. 



Hyperolius seycbellensis, Giinth. Cat.'p. 89. 

 Eucnemis seyclielleusis, Tschudi, Batr. p. 76 ; Dnm. ^ Bihr. p. 537. 

 Megalixalus iufraruf us, Giinth. Froc. Zool. Soc. 1868, p. 485. 



Tongue subrhomboidal, nicked behind. Head large ; snout 

 rounded, longer than the orbital diameter ; tympanum distinct. 

 Fingers half webbed, toes nearly entirely webbed. The hind limb 

 being carried forwards along the body, the tibio-tarsal articulation 

 reaches the eye. Skin smooth, granular on the belly and under the 

 thighs. Uniform greenish above, rufous beneath ; lips and upper 

 eyelid margined with white ; thighs coloured. 



Seychelles, 



a-b. 2 & yg- SeycheUes. E. P. Wright, Esq. [P.]. (Types of 



Megalixalus infranifus.) 



2. Megalixalus flavomaculatus. 



Hyperolius flavomaculatus, Giinth. Froc. Zool. Soc. 1864, p. 310, 



■pi. 27. f. 1. 

 Kappia flavomaculata, Giinth. Froc. Zool. Soc. 1868, p. 481. 



