326 Effa Funk Miihse. 



which extends often without interruption from just behind the snout 

 to the tip of the vertebral column. The skin over the dorsal tibular 

 portion of the legs bears warts of a similar nature. This class of 

 elevations measures from 1.5 to 4 mm. in diameter, and there oc- 

 casionally occur elongated mound-like masses which reach a length 

 of 5 or 6 mm. The warts are often in groups of two, three or more. 

 These warts or groups of warts are not bilaterally symmetrical in 

 their arrangement, nor is there any constancy in the number present. 



(3) The remaining warts, those which measure less than 1.5 mm. 

 in diameter, may be put in a third class. The warts on the upper 

 eye-lids, cheeks, flanks, outer surfaces of the thighs, distal edges of 

 the hind feet and in the spaces intervening between the larger 

 elevations previously described, constitute this class. A row of 

 these warts extends along either flank. It begins at the outer 

 posterior edge of each parotid and extends to about the point reached 

 by the knee of the hind leg when folded against the body. 



Coloration. Color. The toad follows a general rule of animal 

 coloration. The ventral surface is light and the dorsal some shades 

 darker. The transition region is at the line which separates the 

 exposed from the unexposed part, when the animal lies stretched 

 out on its ventral surface. The color of the lower surface differs 

 with individuals and is either buff, dull white, faint yellowish or 

 pale green. Between the fore limbs a few dashes of pigment occur. 

 Individual toads differ greatly in the appearance of the dorsal sur- 

 face. All are more or less conspicuously or inconspicuously spotted. 

 In some cases the spots are but slightly darker than the remainder 

 of the surface and may be very few in number. In others there is 

 the greatest contrast possible with the colors present. The ground 

 color of the dorsal surface is, as a rule, in darker shades of the 

 ventral color. The spots appear as if superimposed in still darker 

 shades of the same general color. The spots are, however, often so 

 dark as to appear seal brown or even black. Frequently the spots, 

 many of them at least, are encircled by a very narrow band of 

 jet black, red, yellow or white, which makes the contrast greater. 



Arrangement of spots. The more distinct spots occur on either 

 side of the median line of the back in a more or less regular series 



