BATRACHIAANOURA. 63 



entire, and free upon the half of its length. Tympanum distinct. 

 Fingers and toes free, eubdepressed, provided, upon their extremi- 

 ties, with small disks. Abdomen smooth. 



SYN. Hylodes, FITZ. N. Class. Kept. 1826, 64. DUM. & BIBR. Erp. gen. VIII, 1841, 

 619. 



HYLODES PARVTJS, Grd. 

 (Plate III, figs. 24-28.) 



CAR. SPEC. Dentibus vomerinis in figuram V, ad verticem leviter inter- 

 ruptam, dixpositi-s. Lingua crassa et cordiformi. Palmarum etplan~ 

 tarum digitis tenuibus. Colore ubiquefiisco. 



SPEC. CHAR. Vomerine teeth disposed upon a V-shaped figure, slightly 

 interrupted at the summit. Tongue thickish and cordiform. Fin- 

 gers and toes slender. Uniform dark-brown. 



SYX.ff</lodesparvus, GRD. in Proc. Acad. Nat. Sci. Philad. VI, 1853, 423. 



DESCR. The head is nearly as broad as long, and, when viewed 

 from above, it has a subovoid appearance ; it gradually diminishes 

 anteriorly, the snout being rounded and declivous. Its upper surface 

 is almost even, although a shallow depression may be observed from 

 the occipital region to the nostrils. The latter are subelliptical, situ- 

 ated towards the upper surface of the snout, immediately beneath the 

 canthus rostralis, and much nearer the margin of the upper jaw than 

 the anterior rim of the eye. The phrenic region, posterior to the nos- 

 trils, is depressed. The eyes are proportionally well developed, promi- 

 nent, subcircular; their diameter being a little larger than the distance 

 between their anterior rim and the nostrils. The upper lid is smooth. 

 The interocular space is about equal to the diameter of the eye. The 

 tympanum is rather small, vertically ovoid, the narrowest end directed 

 upwards ; a vertical line drawn through its centre intersects the angle 

 of the mouth. The latter is proportionally large ; the tongue rather 

 small, subelliptical, thickish, free posteriorly upon one-third of its 

 length, and apparently entire. The inner nostrils are proportionally 

 large, ovoid, and far apart. The openings of the Eustachian tubes are 

 very conspicuous ; in shape, like the inner nostrils, and nearly as 



