CEICKET FEOff. 705 



Habitat, Penusylvania, Michigan, Wisconsin, Illinois, New Mexico, Kansas, Nebraska, 

 Colorado, and Dakotah. 



Rare in Ohio. 



Genus ACEI8. Dnmeril and Bibron. 



Head short and broad; eyes prominent; tongue cordiform; vomerine teeth in two 

 groups, between the inner nares; tympanum scarcely perceptible; skin upon the back 

 smooth cr slightly granular; digital disks small; toes webbed almost to tips; fingers 

 nearly or quite distinct ; males with an interior subgular vocal sac. 



AcKis GEYLLUS LeConte. 



var. CREPITANS Baird. 



Cricket Frog:. 



Bana gryllus, LbConte, Harlan. 



Bana dorsalis, Haklan. 



Acris gryllus, Dumkeil and Bibron, Gunthbe. 



Hyla gryllus, Holbrook. 



Hylodes gryllus, Holbeook, DeKat. 



Acris crepitans, Baird, LbContb. 



Acris gryllus, subgenus, crepitans, Cope, 



Color above varying from cinereous to olivaceous or brown, often with a triangular 

 dark spot, margined with white in the occipital region ; another dark spot, some- 

 times extending from the axilla backwards, with white on its under side ; back often 

 with minute points of black, and frequently with a vertebral stripe ; lips usually whitish, 

 speckled with darker ; chin and gular region varying from white to yellow ; abdomen 

 whitish, often varied with dusky; inner and posterior part of thighs granulated; femur 

 slightly shorter than tibia; second toe longest; posterior limbs three and a half to four 

 times as long as the anterior, the latter with a transverse cutaneous fold across the 

 breast between them. 



Length, If inches ; head to axilla, 5 lines ; hind leg If inches ; transverse diameter of 

 head, i^ lines; vertical diameter of head, 3 lines; transverse diameter of bodyj 5J lines. 



Habitat, New York, Pennsylvania, Michigan, Ohio, Illinois, Arkansas, Georgia, Flor- 

 ida and Texas. 



This is a lively and noisy little aquatic animal, frequenting the grass 

 on the borders of ponds, and never found upon trees. 



Genus HYLA.. Laurenti. 



Head short, not separable from the body, and covered with a soft skin ; eyes promi- 

 nent ; vomerine teeth between the nares ; toes long and broadly palmate ; fingers more 

 or less webbed; digital disks prominent; tongue large, nearly orbicular, entire or 

 slightly emarginate behind; males with one or two sublingual vocal sacs; arboreal in 

 summer ; hybernating in mnd or old logs ; color changeable. 



Chorophilus nigritus. Proo. Acad. Nat. Sci , Phil., 1855, p. 427, Holbrook's N. Am., 

 Herp. IV, p. 107, This animal, which I had supposed to be a Southern spscies, limited 

 to South Carolina and Georgia, is recorded by Giinther, Cat. British Museum, p. 97, 

 under the name of Pseudacris nigrita, as coming from the Great Bear Lake. Should this 

 species be found to have so wide a range, it will doubtless yet be found in our limits. 

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