7<> Miller A Neiv Trccfrog from tlic District of Columbia. 



and legs so conspicuous in Hyla cmerea. It may therefore be 

 called : 



Hyla evittata sp. nov. 



Type adult tf (in alcohol) No. 26,291, United States National Museum, 

 collected at Four Mile Run, Alexandria County, Virginia, July 15, 1898, 

 by Gerrit 8. Miller, Jr., and Edward A. Preble. 



Zonal position. This frog is probably confined to the Upper Austral 

 zone. 



Geographic distribution. While the animal is at present known from 

 the marshes of the Potomac River near Washington only, it is to be looked 

 for near the coast from Chesapeake Bay to Long Island Sound. 



General characters. Like Hyla cinerea (Daudin) but with broader, deeper 

 muzzle and normally unstriped body and legs. 



Color. Entire dorsal surface varying from olivaceous brown through 

 deep myrtle-green to pale yellowish grass-green ; ventral surface white, 

 irregularly tinged with yellow, especially on chin and throat; colors of 

 back and belly fading rather abruptly into each other on lower part of 

 sides ; skin of under surface of limbs unpigmented, transparent ; legs and 

 jaws slightly paler on sides than above ; eye very bright and iridescent, 

 the pupil black, the iris golden greenish yellow, thickly dotted with 

 black; back with a few usually less than half a dozen inconspicuous, 

 minute, yellowish dots. 



Measurements. Type:* head and body, 48; hind leg, 69; femur, 20; 

 tibia, 21; tarsus, 11; hind foot, 17 ; humerus, 8 ; forearm, 8; front foot, 

 10; greatest width of head, 14; eye to nostril, 3.5; distance between 

 nostrils, 3.5. An adult $ from the type locality: head and body, 50; 

 hind leg, 70 ; femur, 21 ; tibia, 21 ; tarsus, 11 ; hind foot, 17 ; humerus, 8 ; 

 forearm, 8; front foot, 10; greatest width of head, 14; eye to nostril, 4; 

 distance between nostrils, 3. 



Remarks. Hyla evittata is at once distinguishable from H. cinerea, its 

 only near ally, by the absence of the stripes on sides and legs, so con 

 spicuous in the latter. Except for the differences in the shape of the 

 head, the two animals agree perfectly in form and dimensions. Hyla 

 evittata, however, probably averages slightly larger than H. c-nerea. The 

 peculiarities in the form of the head are more readily seen than described. 

 Tn Hyla evittata the outline of the muzzle when viewed from above is dis 

 tinctly more bluntly rounded than in H. cinerea, and as a result the nos 

 trils are wider apart and less distant both from eyes and tip of muzzle. 

 Viewed from the side, the depth from nostril to mouth is perceptibly 

 greater in H. evittata than in H. cinerea. The granulation of the skin of 

 belly and hind legs is identical in the two animals. These comparisons 

 are entirely based on living individuals. 



*An adult tf H. cmerea from Bay St. Louis, Miss., measures: head and 

 body, 48; hind leg, 68; femur, 20; tibia, 21; tarsus, 11; hind foot. 15; 

 humerus, 9; forearm, 9; front foot, 10; greatest width of head, 13; eye 

 to nostril, 4; distance between nostrils, 2.5. 



