308 Alexander G. Rüthven, 



the latter imder logs in darap places, but it was also taken in 

 immbers in the grass and low Vegetation both near the ponds and 

 on higher ground. It breeds in the ponds and in July and August 

 numbers were observed about the shores of the temporary pools in 

 low partially cleared woods, and in swampy places on the shore of 

 Lake Catemaco. 



Engystoniops pustulosus (Cope). 



Not uncommon at Cuatotolapam. 



The colors of this species have not been accurately described, 

 probably because the red fades rapidly in alcohol. The ground 

 color above is gray, relieved by irregulär black blotches. Most of 

 the warts on the head and nape and a few on the body are dull 

 orange (142) or red orange (78c or 78d), as are also the light 

 coccygeal line, the broad light area on the fore limbs, and more or 

 less of the light cross bands on the bind limbs, particularly on the 

 feet. The light spot in the interscapular region and the one on 

 either side of the back are present in all specimens, and, with the 

 line of enlarged warts behind the angle of the mouth, are usually 

 very pale yellow, but occasionally red. The line in the coccygeal 

 region is usually well delined only to the pair of large blotches in 

 the lumbar region. It is occasionally continued narrowly to the 

 broad black margin of the interscapular spot, and occasionally 

 beyond this to the snout, in whicli case it is interrupted by the 

 supraocular band. In the Single very young example these three light 

 vertebral marks form a narrow line from snout to anus, that is 

 narrowly interrupted in the same places as in the adults. With 

 the exception of a median line, the chin throat and breast are gray, 

 generally profusely spotted with black or brown and generally 

 somewhat speckled with pale yellow. The median line, which is 

 present even in very young specimens, is whitish, or pale yellow, 

 which is the dominant color of the abdomen, the dark color of the 

 chin, throat and breast being broken up into large spots on the 

 posterior part of the ventral surface. 



This little toad was found in about the same places as B. 

 valUceps, but seemed to prefer the wetter places and was more 

 secretive. It was most numerous under logs and decaying Vegetation 

 in a low partially cleared area along La Laja Creek (Fig. 6), but it was 

 also found under logs on the shore of the prairie ponds, and in the 

 banana grove at San Juan. During the rains it was found at night 



