B A T R A C H I A A N U R A. 87 



third ; the fourth is but little shorter than the second. There are 

 tubercles under the articulations, but the palm of the hand is smooth; 

 there is a very large, subcircular, metacarpal horny disk, and a smaller, 

 elongated one, at the base of the first finger. The toes are but slightly 

 palmated ; they are quite depressed, like the fingers. The first is, as 

 usual, the smallest, and provided upon its base with an elongated 

 tubercle ; there are also two metatarsal horny disks, subcircular in 

 shape. The articulations, beneath, exhibit each a tubercle, and the 

 sole of the feet, small granules. The tarsus is provided along its 

 inner edge with a thick membranous fold. 



The skin has a quite rough appearance, owing to the presence of 

 large pustules or warts, distributed all over the back, sides, and limbs, 

 to the elbow and knees. These pustules are much larger and more 

 prominent on the dorsal region, being small on the sides of the head, 

 on the abdomen, and anterior part of the limbs. The whole upper 

 surface of the head, body, and limbs throughout is minutely granular, 

 The inferior surface of the body, head, and limbs has a rather 

 smooth appearance; on the arms, thighs, and sides of abdomen the 

 pavement-like warts are somewhat more conspicuous. 



The head and dorsal region are of an apparently uniform bluish* 

 black hue ; reddish-grey upon the sides ; a black patch on the tym- 

 panum ; a black vitta on the sides of the abdomen, and black patches 

 on the limbs; the fingers and toes being reddish. The inferior surface 

 is of a soiled yellowish-white. 



The specimen, as preserved in alcohol, has been much contracted 

 by the liquid. As to the color, it is described from the sketch made 

 from life by Mr. Drayton, in January, 1839. In alcohol, the ground 

 color appears now yellowish-green, maculated or clouded with black. 



Obtained at Valparaiso, Chile. 



Plate VI, fig. 10, represents Bufo luguhrosus, sisze of life. 



Fig. 11, is a side view of the head. 



Fig. 12, an upper view of the head. 



Fig. 13, the head, seen from beneath. - . 



Fig. 14, under surface of the left hand. 



Fig. 15, under surface of the right foot, 



