AMPHIBIANS 167 



and also a dark line on each side of the body; length 35 mm. : southeast 

 Virginia to Florida; the Gulf States; in pine trees. 



H. arenicolor Cope. Body robust, gray in color with or without two 

 or three rows of round brown spots on the back; length 42 mm.; skin 

 rough; lingers not webbed: southwestern States from Texas and Utah 

 into southern Cahfornia. 



H. regilla Baird and Girard. Pacific tree frog. Body small, and 

 gray, green, brown or red in color, with a wide black band from the nos- 

 tril through the eye to the shoulder; either without markings or with 

 elongated black blotches on the back and a V-shaped spot on the head ; 

 length 53 mm.: Pacific slope from Vancouver Island to Cape St. 

 Lucas; Idaho, Nevada, Arizona; ranging from sea level to 10,000 feet 

 elevation; in low bushes, trees, moist places on the ground, and in 

 burrows of animals. 



2. Acris Dumeril and Bibron. Similar to HyUu — ^ 

 except that the digital disks are minute; hind toes 

 webbed: 7 species. 



A. crepitans Baird (A. gryllus\^t Conte). Cricket 

 frog (Figs. 89 and 92). Body small, with a warty skin 

 and variable in color, being some shade of brown or pj^^ g2.— Acris 

 grav with a black triangular patch between the eves, the crepitans {from Park 



° - o i . Museum BuUettn). 



apex of which is directed backwards, and usually 2 or 3 

 oblique spots on each side of the back; eyes orange; length 25 mm.; hind 

 legs 40 mm.; toes webbed; a fold of skin over the tympanum and one 

 across the breast: eastern and central America; northward to southern 

 New York and Connecticut; westward to Texas and Dakota; a diurnal 

 frog which lives in the grass and near marshy places, but not in trees. 



3. Pseudacris Fitzinger iChrophilus Baird). Swamp cricket frogs. 

 Similar to Hyla, but without webs between the toes or very short ones, 

 and with very small digital disks: 7 species and subspecies. 



Key to the Species of Pseudacris 



ai Size larger; dorsal markings present. 



bi A median stripe or row of spots P. nigrita. 



hi Xo median stripe or row of spots. 



Ci In the Appalachian area P. brachyphona. 



C2 In the southwestern states P. ornata. 



3.2 Size very small; a black stripe through the eye; no dorsal 



markings P. ocularis. 



P. nigrita (LeConte) . Body coarsely granulated above and beneath, 

 with a narrow, pointed head and long legs; color varying from black to 



