g2 BATRACHIA. 



Their thickness gives quite a broad appearance to that part of the 

 body ; the pores are not numerous and far apart. 



The body is subelliptical, longer than broad. The limbs are well 

 developed. The first finger is longer than the second, which is the 

 smallest ; the third is the largest ; the fourth resembles the first. 

 The dried state of the specimens did not allow a further study of the 

 toes. 



All over the upper part of the body and limbs are scattered glandu- 

 lous tubercles of various sizes. Generally a double series, larger than 

 the rest, are observed on the dorsal region. On the sides of the abdo- 

 men they are also more conspicuous. These tubercles are either 

 smooth or provided with small spines, which, in the latter case, give 

 the animal a somewhat rougher appearance. Beneath, the skin is 

 always smooth, though wrinkled or folded in an irregular mesh work. 



The ground color of the largest specimen is yellowish-white, mottled 

 with black or brownish-black. Two elongated patches of black extend 

 from the head to the posterior extremity of the body, along the back, 

 leaving free a dorsal medial area of the ground color. The upper 

 surface of the limbs is mottled. The upper surface of the head, the 

 ridges, and the margin of the jaw, are brownish-black. The parotids 

 exhibit a bluish reflection over the general tint. Beneath, the color 

 is dull yellowish-white. 



Another variety of coloration exhibits a brownish-green ground, with 

 dark spots over the body, each of which spots as well as the interme- 

 diate spaces, being filled with smaller spots. The eyes and tympanum 

 are emerald-green. The specimens exhibiting this variation of color 

 have the skin studded with small asperities, whilst in the former it is 

 quite smooth. 



Procured at Rio de Janeiro, December, 1838, near the coast, and 

 sketched from life. 



Plate V, fig. 1, represents Bufo marinus, size of life. 



Fig. 2, is the under surface of the left hand. 



Fig. 3, the under surface of the right foot. 



Plate VI, fig. 1, represents another variety of the same species. 



Fig. 2, being the right hand, seen from beneath. 



Fig. 3, the under surface of the right foot. 



