408 lUJLLirriN 3i, united stativS national muskum. 





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Dv. riolbrook thus describes the colors in life: 



liody pule brown above, witii two h)nj'itu(liiiiii rows of s(iUiiro Hpots 

 of a dark brown color on the back and on each Hank; yellowish-whitc 

 beneath ; posterior half of the thighs bright yellow, mottled witii black. 



Tiie head has a dark brown s^tot on tlu^ top of each orbit and another 

 near the snout, with an indistinct dark line extending from the nostrils 

 to (he orbit of the eye. The ui)per jaw is yellowish-white, spotted 

 with black ; the lower is white, and spotted in like manner. The eyes 

 are hirge and prominent, the i)upil black, with the iris of ii golden 

 color; the tymjjanum is bronze, with ji spot of a darker shade in the 

 middle. A yellow line begins at the eye and runs below tiie (yni- 

 panum to the base of the anterior extremities. The sni)erior surface 

 of the body is pale brown, almost covered by oblong s(piare si)ots of 

 very (hirk brown, arranged symmetrically in two lines along the back. 

 We sometimes find two of these scpiares conlluenf. A i)right-yellow lon- 

 gitudinal line, but not raised in a ciitaut'ous fold, as in litnui rir<:sccns 

 begins bt'liind each orbit and extends to the posterior extremity of the 

 body. IJi'low this line, on eacli tlank, are two otiur roAs of siiuare 

 brown spots, the superior row beginning on a level with and behind 

 the tympanum, the inferior row is less regular, iVccpuMitly consisting 

 only of small si>ots, disitosed without order. Tlui interior surfacte of the 

 neck and abdomen is yellowish- white, except at the posterior part, where 

 the yellow is nu)re decided. The anterior exticmitics are yellowish 

 brown above, marked with a few very dark blotclics; th(\ir lower sur- 

 face issilverwhite; the lingers are lour in nund)ci', iVee, of a light brown 

 color on the ui)per and yellow on thcj lower surface. The posterior ex- 

 tremities are brownish above, with transverse biuids of dark bidwn (!on- 

 tinued * the toes. The inferioi' and posterior jtait-iof the thigh are 

 grannl.iied, and of a bright yellow, with black spots. The inferi(»r sur- 

 face of the leg and tarsus is yellow. 



This species is characteristic of the eastern district of North America, 

 as it ceases to be found so soon as the Central Plains are reached, it 

 ranges this entire district, extending as far muth as Hudson's Bay. 



Ill its habits it is not gregarious like the /»'. rirenvcitu t'//r,v««.s, and is 

 even more solitary than the A', r. bniclii/nplialK. it pietcis cold springs 

 and stri'amlets, but is of all our frogs the most frecpiently seen in the 

 grass. It is the most abundant species in the Alleghany ^Tonntains. 

 Next to the J{. silrafiea, it takes the longest leaiisof any of our species- 

 its note is a low prolonged croak, somewhat resembling the sound pro- 

 duceil by tearing some coarse uiaterial. 



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