THE HERPETOLOGY OF HISPANIOLA 29 



bars on the legs; lips edged with an irregular dark line, followed by a 

 metallic light stripe; lower surfaces olive-buff, except the throat and 

 lower parts of extremities, which are suffused with slate color; where 

 the colors of the upper and lower surfaces meet, on the legs and on the 

 sides, there is an area where the slate color makes a coarse reticulated 

 pattern enclosing prominent small spots of light olive-buff; above 

 this on the femur there is a wide irregular light bar. 



Variations. — Some differences in the length of the snout are ap- 

 parent in a series of these frogs. Among six from Laguna, the snout 

 length is one and one-third to one and two-thirds the diameter of the 

 eye. The toes are as usual somewhat different in the size of the disks. 

 In a series of 24 individuals of all ages from the San Juan River, the 

 skin is found to be intensely roughened and glandular in the young, 

 while in big females the skin is practically smooth on the entire upper 

 surface. 



A surprisingly great variation in color occurs at all ages. Some of 

 the young are much more strikingly patterned than others, and their 

 colors are darker. In U.S.N.M. No. 74619, for instance, the bars on 

 the hindlegs stand out with great distinctness, the entire dorsal 

 region is slate color, and the pale interorbital bar is conspicuous, 

 while the heavy glands on the back are pale in color. No. 74622, 

 another young one from the same collection, is a pasty light olive- 

 gray, on which the interorbital bar is almost lost; the limb bars are 

 distinct but much lighter than in the preceding specimen, while the 

 back has the same light tone as the glandular ridges. The adult 

 frogs show nearly as much variation in hue, although the glandular 

 ridges are very much reduced and scarcely differentiated by color. 

 Often the throat, chest, and lower surfaces of arms and legs are 

 suffused with slate color. 



The largest of the frogs at hand, measuring 88 mm. in length, is 

 U.S.N.M. No. 74600 from Rio San Juan. The tibia is 63.6 percent 

 of the length of head and body in this specimen. The tibial length is 

 surprisingly constant in 24 individuals (exceeding 40 mm. in length) 

 ranging from 58.5 to 63.9 percent, with an average of 61.7 percent of 

 the length of head and body. 



The specimen described, as well as 20 other adults from the north- 

 eastern part of the Dominican Republic, differs substantially from 

 the description of the unique type of inoptatus, which came from 

 Diquini, Haiti. In the first place, the interorbital diameter is said to 

 be over twice the width of the upper eyelid in the type, while in my 

 series it is never over one and one-half times the width of the upper 

 eyelid, and in one case is equal, in one slightly less. The tarsometa- 

 tarsal articulation of the adpressed foot in the type reaches the nostril ; 

 in the present series it extends far beyond the tip of the snout con- 



