VOL. XIII, PP. 75-78 SEPTEMBER 28, 1899 



PROCEEDINGS 



OF THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



NEW TREEFROG FROM THE DISTRICT OF 

 COLUMBIA* 



BY GERRIT S. MILLER, Jit. 



In June, 1893, Mr. W. P. Hay added to the known fauna of 

 the District of Columbia f a treefrog which he found in consid 

 erable numbers in a marsh at Mount Vernon, Virginia. He pre 

 sented eighteen specimens of the animal, identified as Hyla cinerea 

 (Daudin) (=H. ' carolinensis J ), to the United States National 

 Museum. Two years later Mr. Hay collected specimens at Little 

 Hunting Creek, Va. Four of these are now in the National Mu 

 seum. This frog was first brought to my notice early in June, 

 1898, when, in company with Mr. A. H. Howell, I heard its notes, 

 strikingly different from those of the other batrachians of the 

 region, at Four Mile Run, Va. A week later seven were captured 

 here by Mr. Howell and Mr. E. A. Preble. Since then we have 

 taken, in the marshes at Four Mile Run and Dyke, a locality 

 between Alexandria and Mount Vernon, Virginia, about thirty 

 individuals, some of which I have had in captivity for over a 

 year. Comparison of these with living examples of Hyla cinerea 

 from Bay St. Louis, Miss., shows that the northern and southern 

 forms are readily distinguishable from each other by characters 

 of both form and color. Most conspicuous among these is the 

 normal absence in the northern animal of the stripes on sides 



* Published by permission of the Secretary of tho Smithsonian Institu 

 tion. 



t The ' fauna of the District of Columbia ' is generally understood to in 

 clude that of the region within a radius of twenty miles from the Capitol. 



19-Bior, Soc. WASH., VOL. XIII, 1899 (75) 



