12. PALCDILOLA. 13. LEPTODACTYLTIS. 237 



15. Paludicola nitida. 



Liupei'us nitidus, Peters, Mon. Bed. Ac. 1869, p. 878. 



Tongue long and nearly rhomboidal. Vomerine teeth none. 

 Habit slender. Snout subacumiuate, rounded, as long as the orbital 

 diameter ; nostril nearer the tip of the snout than the eye ; tym- 

 jmnum indistinct, one third the width of the eye. First finger a 

 little shorter than second ; subarticular tubercles well developed ; 

 similar tubercles on the palm and sole. Skin smooth, or with a few 

 very small granules on the back. Greenish above, with darker mark- 

 ings ; a dark triangular spot between the eyes ; on each side in front 

 of the thigh a blackish, light-green marbled, oval spot ; limbs cross- 

 barred ; brownish beneath, indistinctly dotted with lighter. 



Piiebla, Mexico. 



16. Paludicola? mexicana. 



Leiuperus mexicanus, Brocchi, Bull. Soc. Fhilom. (7 ) i. p. 184. 



Tongue discoid. Vomerine teeth none. Snout truncate, with 

 angular canthus rostralis ; tympanum very distinct, not half the 

 width of the eye. Toes rather long and thin, with a verj' slight 

 rudiment of web which does not extend on their sides ; tips of fin- 

 gers and toes swollen into small disks ; subarticular tubercles well 

 developed ; two metatarsal tubercles, the inner oval and much 

 larger than the outer. Skin smooth. Greyish above, marbled with 

 black ; a black spot behind the tympanum ; white beneath, the 

 throat speckled with grey. 



Mexico. 



13. LEPTODACTYLUS*. 



Leptodactylus, Fitzing. Class. Eept. p. 38. 



Cystignathus, Wagl. Syst. Rept. p. 202 ; Tschudi, Bafr. p. 78; Guntli. 



Cat. p. 27; Cvpe, Nat. Hist. Mev. 1865, p. 112, a7id Joiirn. Ac. 



riiilad. (2) vi. 1866, p. 96. 

 Cystignathus, sp., Dum. <$■ Bihr. viii. p. 392. 

 Crossodactylus, Dum. 4" Bihr. viii. p. 635. 

 ? Linmocharis, Bell, Zool. Beagle, Eept. p. 32 ; Giinth. Cat. p. 23 ; 



Cope, Journ. Ac. Philad. (2)'vi. p. 96. 

 Pleurodema, sp., Giiiith. Cat. p. 31. 



Tarsopterus, Reinh. ^ Liitk. Vidensk. Meddel. 1861 , p. 177. 

 Gnathophvsa, Cope, Nat. Hist. Rev. 1865, p. 112, and Journ. Ac. 



Philad. \2) vi. p. 96. 

 Entomoglossus, Peters, Mon. Berl. Ac. 1870, p. 647. 



Pupil horizontal, Tongue oval or rounded, entire or slightly 

 nicked, and free behind. Vomerine teeth behind the choante. Tym- 

 panum very distinct. Fingers and toes free, not or but slightly 



* 1. Cystignathus hylodes, Eeinh. & Liitk. Vidensk. Meddel. 1861, p. 168. — 

 Brazil. 



2. Cgstignathus discolor, Eeinh. & Liitk. I. c. p. 169. — Brazil. 



3. Hylodes hallowellii. Cope, Proc. Ac. Philad. 1862, p. 153 ; Cystignathus 

 halloxvellii, Cope, eod. loc. 1868, p. 115. — Carthagena, Colombia. 



