74 Trans. Acad. Sci. of St. Louis. 



Life Coloeation - . 



Examples of Lithodytes from Waco are not as brightly 

 colored as those from the type locality, nor are the mark- 

 ings of the upper surfaces as well defined. Miss Dick- 

 erson 2 mentions Helotes specimens in which the superior 

 surfaces were tinged with salmon-pink. As a rule, San 

 Antonio and Waco examples of the same species, both in 

 reptiles and amphibians, have widely different colors. 

 Specimens of Holbrookia texana Troschel, and Sceloporas 

 consobrinus B. & G., from the San Antonio district dis- 

 play shades of red not exhibited by examples from Aus- 

 tin northward. 



The following description was written in the field : 



(Baylor University Collection No. 5281, male, Waco, 

 Texas, March 5, 1910.) Skin very smooth. Superior 

 surfaces brownish gray with a few large brown spots 

 having pale greenish centers. (These spots were very 

 distinct in the living animal, but are now much faded, 

 their outlines being barely perceptible. The animal was 

 accidentally suffocated in the collecting can.) Outer and 

 inner surfaces of limbs, bright yellowish green, this color 

 extending along the side of the body to a point midway 

 between the fore- and hind-limbs and forming conspic- 

 uous patches. Below pale grayish dotted with white on 

 the chest and throat as in pale Eastern examples of 

 Engystoma carolinense Holbrook. Throat pale yellow- 

 ish, a blackish line along the edge of the under lip. Bars 

 on upper surfaces of the limbs present, but rather indis- 

 tinct. Spots along side of body and head very conspic- 

 uous, blackish brown in color. Spot in front of arm 

 insertion pale in color but distinct. Spaces below dark 

 spots under eyes and along upper lip, white. Iris bronze. 

 Vocal pouch well developed. 



This specimen is only about half grown and the limbs 

 are comparatively shorter than in larger examples. Total 

 length, head and body, 1-13/16 in. The coloration, how- 



2 The Frog Book 163. 1906. 



