128 RANIDJE. 



12. MEGALIXALUS. 



Encnemia, sp., Tschiidi, JJafr. p. ;i.>; J)iiin.d\- Bibr. viii. p. 525. 

 llvpeioliiis, sp., liapp, Arch. f. Natury. \S\2, p. 289 j Giinth. Cat. 



p. .^5 ; Cope, Xitl. Jlist. Itei'. \r^i\'>, p. 110. 

 IJainiiii, sp., Ginith. Zoo/, lice. i. p. I-'U). 

 Megiilixfilus, sp., Giintli. }')-oc. Zoo/. Soc. 1808, p. 485. 



Pupil vertical. Toiiguo heart-shaped or suhrhomhoidal, nicked 

 aud I'rce hchiiid. Vomerine teeth none. Tynii)annni distinct or 

 hidden. Fiiigers and toes more or less webbed, tlie tij)s dihited into 

 large disks. Onter metatarsals not separated. Omosterniim and 

 sternum with a bonj- style, 'rrrminal i)lialanges obtuse. 



Tropical Africa. 



St/nojisis of the Sjpecies. 



I. Tympanum distinct. 



Fingers half webbed 1 . seychellensis, p. 128. 



Fingers slightly webbed 2. J/avomaculatus, p. 128. 



II. Tympanum hidden. 



Skin quite smooth above ; tongue 



subrhomboidal 3, madugascariensis, p. 129. 



Skin quite smooth above; tongue heart- 

 shaped 4. leptosonms, p. 129. 



Skin of upper surfaces with very small 



tubercles ;">. forHrts/;;//, p. 130. 



Upper surface of head studded with 



acute tubercles 6. s^lnifrons, p. 130. 



Skin of upper surfaces covered with 

 spinous warts; fingers two-tliirds 

 webbed 7. sjilnosiis, p. 130. 



1. Megalixalus seycliellensis. 



Hyppvoliiis soycht'llcnsi5>, Giinth. Cat. p. 89. 

 Eucneniis seychellensis, Tsc/iik/i, L'ntr.y). 70; Dtim. c^j* I>i/»: p. 5.")7. 

 Megalixnliis infrarufus, Giinth. IVoc. Zoo/. Soc. 1808, p. 485. 



Tongue subrhomboidal, nicked behind. Head large ; snout 

 rounded, longer than the orbital diameter ; tympainim distinct. 

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

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

 reaches the eve. Skin smooth, granular on the belly aud under the 

 thighs. Uniform greenish above, rufous beneath ; lips and n{»per 

 eyelid margined with white ; thighs coloured. 



Seychelles. 



a-b. 2 & yg. SeycLeUes. E. 1\ \\' right, Esq. [P.]. (Types of 



Meiia/ixa/us infranifus.) 



2. Megalixalus flavomaculatus. 



Ilvperolius flavomaculatai.^i, Giinth. Froc. Zoo/. Soc. 1861, p. olO, 



'pi. 27. f. 1. 

 Eappia flavomaculata, Giinth. Proc. Zool. Soc. 1SG8, p. 481. 



