BATRACHIAANOURA. 53 



SPEC. CHAR. Vomerine teeth disposed upon two elongated groups, 

 situated between and behind the inner nostrils. Skin pustulous, 

 greenish-brown; upper jaw spotted. 



SYN. Hylara.no, mtndanensis, GRD. in Proc. Acad. Xat. Sci. Philad. VI, 1853, 423. 



DESCR. This appears to be the smallest species of its genus, the 

 greatest length of the body and head together measuring but one inch, 

 the head forming about the third of it, and is as long as broad. The 

 upper surface of the head is almost flat, and, when viewed from above, 

 ovoid in its outline. The snout is elevated, rounded, narrow, and 

 quite prominent. The nostrils are conspicuous, and nearer the extre- 

 mity of the snout than the anterior rim of the orbit. The space 

 between tbe nostrils and eyes is subconcave, whilst the margin of the 

 jaw constitutes a convex ridge. The eyes are proportionally large 

 arid prominent, subcircular in shape, their diameter being equal to 

 the distance between their anterior rim and the extremity of the 

 snout. The interocular space is equal to the greatest width of the 

 upper lid, which, itself, is smooth like the surface of the head. The 

 tympanum is situated very close to the eye, and is less in diameter 

 than the latter. The tongue is large, fleshy, subelliptical ; its poste- 

 rior bifurcation being narrow and diverging. The inner nostrils are 

 subcircular, of medium size, and situated near to the jaw-bone. 

 The vomerine teeth are not very conspicuous ; disposed upon two nar- 

 row, widely separated, elliptical groups or series, directed obliquely in- 

 wards and backwards from the posterior margin of the inner nostrils. 



The body is elongated, subcylindrical ; the anterior limbs slender, 

 shorter than the trunk ; the posterior ones, comparatively well de- 

 veloped, longer than the body and head together, by the whole length 

 of the foot. The fingers are subdepressed ; the first is but very little 

 longer than the second and fourth ; the latter two being nearly equal. 

 The palm of the hand exhibits ridges running in the direction of the 

 fingers. The articulations of the latter are provided beneath with 

 conspicuous though small knobs or tubercles, in every point similar 

 to the swellings on the inferior surface of their extremities. The toes 

 are webbed, very nearly to their tips, but the membrane is very deeply 

 concave between all of them. The swellings at their extremities are 

 larger than the tubercles under their articulations. There is but one 

 metatarsal tubercle, situated at the base of the inner toe, from which 



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