7. ELOSIA. 193 



short ; no cuneiform tubercle. The hind limb being carried for- 

 wards along the body, the tibio-tarsal articulation reaches the 

 nostril. Skin perfectly smooth. Above dark plumbeous ; below, a 

 light lead-colour, 



Juliaca, Peru (12,500 feet). 



7. ELOSIA. 



Elosia, Tschi((/i, Batr. p. 77 ; Dam. 4" Bihr. viii. p. 032 ; Gunth. Cat. 



p. 81; Coj^e, Xaf. Hist. Rev. 18Go, p. 111. 

 Eiiydrobius, sp., War/L Si/st. Ampli. p. 202. 

 Enhydrobius, Cope, Juurn. Ac. Philad. (2) vi. 1866, p. 00. 

 Hylodes, sp., SteimJachn. Verk. zool.-hot. Cfes. Wieii, 1864, p. 248. 



Pupil horizontal. Tongue subcircular, free behiud. Vomerine 

 teeth. Tympanum distinct. Fingers free ; toes nearly free, the tips 

 dilated into regular disks, the upper surface of -svhich bears two 

 rounded cutaneous divisions. Outer metatarsals united. Omo- 

 sternum cartilaginous : sternum a cartilaginous plate. Terminal 

 phalanges T-shaped. 



Brazil. 



Synopsis of the Species. 



Vomerine teeth on a level -with the hinder 

 edge of the choantc ; tarso-metatarsal arti- 

 culation reaching beyond the tip of the 

 snout 1. iiams, p. 193. 



Tarso-metatarsal articulation not reaching 



beyond the tip of the snout 2. hufonia, p. li)4. 



Vomerine teeth on a level with the front edge 



of the choanfe 3. vomerina, p. 194. 



1. Elosia nasus. 



Elosia iiasus, Giinth. Cat. p. 84. 

 Hyla nasus, Lichtenst. Verz. Doiibl. p. 100. 

 ranoides, Spiv, Spec. Kov. Test. Ban. Bras. p. --52, pi. 0. f. 3 : 



Peters, Man. Berl Ac. 1872, p. 207, 

 Enhydrobius ranoides, part., T\^ar/l. Syst. Amph. p. 202. 

 Elosia nasuta, Tschiuli, Batr. p. 77 ; Dum. ^- Bibr. p. 0-33 ; Girard, 



U.S. Expl. E:iped., Ilerp. p. 05, pi. 4. f. 30-43. 

 Enhydrobius nasus, Cope, Journ. Ac. Philad. (2) vi. 1806, p. 96. 

 Hylodes truncatus, Steindachn. Verh. zool.-bot. Ges. Wien, 1864, 



p. 248, pi. 17. f. 3. 



Tongue subcircular, entire. Vomerine teeth in two short oblique 

 series commencing on a level with the hinder edge of the choante. 

 Snout rounded, oVjliquely truncate, with angular canthus rostralis ; 

 nostril equally distant from the eye and the tip of the snout ; inter- 

 orbital space as broad as the upper eyelid ; tympanum half tho 

 diameter of the eye. Fingers rather slender, first a little shorter 

 than second ; toes rather slender, with a slight Aveb at the base 

 which extends as a fringe along their sides ; disks rather small ; 



o 



