BATRACHIA. 



Plate V, fig. 15, represents Bnfo thaul, size of life. 

 Fig. 16, is a side view of the head. 

 Fig. 17, an upper view of the head. 

 Fig. 18, under surface of the right hand. 

 Fig. 19, under surface of the right foot. 



7. BUFO POEPPIGII, Tsch. 



SPEC. CHAR. Upper surface of head plane. Parotids narrow and 

 elongated. Tympanum very small. A membranous tarsal fold. 

 Toes subpalmated. Skin pustulous. Reddish-brown above, macu- 

 lated. Beneath white, with a medial black line. 



SYN. Bufo poeppiijii, Tscn. Faun. Peruan. Herp. 1845, 71. 



OBSERV. The only batrachian which fell within the reach of the 

 Expedition, while on the coast of Peru, is a small toad, one inch and 

 a quarter in length, and which answers to the species described in 

 the " Fauna Peruana," under the name of B. poeppiyii, which appears 

 to be a rather small species. The specimen before us is smaller than 

 the one described by Tschudi. 



DESCR. The head is subpyramidal, when seen from either above or 

 below. In profile it resembles more a flattened disk. The upper 

 surface is almost plane, from the occiput to the tip of the snout, which 

 is prominent and vertically truncated. The oblique nostrils are situa- 

 ted towards the upper part of the extremity of the snout, from which 

 extremity it is only separated by a small protuberance, which gives 

 to the snout its prominent feature. There is no can thus rostralis 

 distinct from the surface of the snout. Behind the nostrils, and 

 obliquely situated on the sides of the snout, may be seen a shallow 

 depression. The eyes are proportionally large ; their diameter being 

 greater than the distance between the anterior rim of the orbit and the 

 extremity of the snout. The upper lid is covered with small granules, 

 similar to, but somewhat larger than, those seen on the head. The 

 upper jaw is slightly emarginated. The tongue is elongated, subhemi- 



