158 PROCEEDINGS OF THE ACADEMY OF 



and larger ones near the middle of the tibiae, black, white-bordered. Ex- 

 tremities shaded with pink. Belly and gular region pinkish brown. Digits 

 tipped with pink. 



Var. lac hry mans. Skin minutely glandular above, lateral fold strong, 

 extending to the groin. Above pink, without dorsal spots. Spots on the tibiae 

 not white-bordered. A pink spot beneath and in front of the eye. Gular 

 region yellowish. 



Habitat. Region of the Truando, New Granada. Mus. Smithsonian, 

 (No. 4344.) Acad. Philada. 



This curious toad is further removed from the Bufo vulgaris than the 

 types of many genera are from each other, but it is difficult to seize upon 

 special characters upon which to base a generic diagnosis, without further in- 

 vestigation. Its general form is similar to that of B. gr a c i 1 i s Gird. It is in 

 some degree allied to Otilophus margaritifer, but, besides wanting the 

 cranial crests, the spines of the dorsal vertebrae are not developed in the same 

 manner. 



Bufo politn s. 



Head without any osseous ridges ; canthus rostralis none, profile of muzzle 

 gradually descending nearly to the lip. Emargination of the latter broad. 

 Nostrils transverse, vertical. Skin of the whole body smooth, shining, with- 

 out rugosities or spines ; abdomen areolated, most coarsely posteriorly. Ex- 

 tremities stout, toes iuUy webbed, soles smooth, without tubercles except that 

 formed by the first cuneiform bone, which is very prominent, oblique, conic, 

 yellow, not brown tipped. A tarsal ridge, no fold. Fingers free ; palm smooth, 

 a large indistinct median callosity ; a tubercle at the base of the thumb. 

 Tympanum one-fourth the size of the eye, narrowed above ; paratoid imme- 

 diately above it, oval, moderate. A series of flat glands on each side of the back 

 symmetrically arranged. Glands also on the superior surfaces of the humerus, 

 antebrachium, femur and tibia: three on the last remarkably large. Length of 

 muzzle to sternum 7 I. ; sternum to vent 1 in. 10 1. : anterior extremity 1 in. 101. ; 

 posterior extremity 3 in. Above olive brown, the glands bordered with deep 

 brown. Inner faces of the extremities straw colored with large brown spots. 

 Beneath bright yellow with variously inosculating black bands. Palms and 

 soles slate color. 



This curious toad resembles the B. leschenaultiiD. and B., from 

 Guiana, in some respects, but differs in many points as the round canthus 

 rostrales, palmated tots, and color. It maybe related to B. trifolium 

 Tsch., but the characters of that species are little known. B. politus has 

 been taken near Greytown, Nicaragua, by Dr. Caldwell (coll. No. 191) and sent 

 to the Museum of the Smithsonian Institution, (No. 5600.) 



Fifty-nine species of toads of the genus Bufo have been described, including 

 those of the present article. 



Bufo co n ife r u s. 



Muzzle prominent, its superior outline only sloping from the concavity of the 

 ridge of the canthus rostralis. This is very prominent, and forms two parallel 

 ridges on the upper surface of the muzzle. It unites with the supraorbital 

 ridge a distance anterior to the orbit, from which angle a strong ridge descends 

 in front of the eye. Supraorbital ridges perfectly straight, a little longer than 

 their distance apart anteriorly. They diverge slightly posteriorly, where each 

 sends off a strong ridge two-thirds its length, slightly directed inward. A strong 

 postorbital ridge, from which a short prominent supratympanic takes its origin. 

 Tympanum distinct, half the size of the eye. Eustachian ostia as large as pos- 

 terior nares. Tongue very elongate, widened and rounded posteriorly, free for 

 one-third its length*. Anterior extremity slender, the distal end of antebra- 

 chium reaching the femur at the groin. Palm smooth, one large flat median 

 metacarpal tubercle ; one narrow elongate on inner border of the base of the 



[March, 



