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THE HATKACUIA OF NORTH AMERICA. 



35: 



tlic eyes nearly parallel to the anterior bra iclies of the dorsal X. A dark 

 vitta from the snout through the ejo down the sides, and a narrow 

 mottled light line along the jaw. 



Feet not webbed beyond penultimate articulation of third and fifth 

 toes and antepenultinuite of the fourth toe. 



In its general features this species agrees with the other American 

 Ilyhe, except that the membrane between the toes is somewhat less de- 

 veloped, and the transverse apophyses of the sacral veitebra' are not 

 (piite so much enlarged towards the tip. It forms an approach to 

 Ciiorophilus, but has, however, large pallets to the extremities. It is 

 still more renioved from Acris. 



The head is acuminate-ovate anteriorly, with the muzzle projecting 

 well beyond the ui)per lip, and is contained a little over three times in 

 the total lengtli. The tympanum is about half the diameter of the 

 tye and distinct. The tongue is very thin, subcordiform, rounded and 

 eniarginate behind, where also it is free. It varies in size in different 

 individuals. The posterior nares are large, with the two gntu|»s of vom- 

 erine teeth approximated and arranged with their longer axis oblique, 

 anteriorly behind the center of the nares, and posteriorly entirely behind 

 tlioir posterior borders. 



The fingers ami toes are well developed. The hand is longer than 

 the fore-arm, and the two about equal or little longer than the hind 

 foot, but not quite as long as the tibia, wi'iich is contained about two 

 and a half times, or less, in the length of tiie l>o<ly. 



The disks are large and consi)icuous. There is no membrane at the 

 bases of (he fingers, of which the third is longest, the foui th or outer 

 longer than the second. The heel of the extended liintl leg reaches to 

 the middle of the eye. There are distin«;t tubercles beneath all the 

 joints of the hind feet, and the two at the base of the foot are well de- 

 velojicd. 



TIk' last three phalanges of the longest toe and the two last of the 

 rest are fre«' from membrane, which is also nearly jibsent idong the 

 inner e«lge of the antepenultinmte phalange of the third toe. 



The skin above is smooth, with occasional low pustules. The abdo- 

 men and lower part of the thigh are very distinctly granulated, as is the 

 pectoral region and the chin to a less degree. IVctoral fold not promi- 

 nent. 



<leneral color above, a i»ale grayi.sh yellow with a dorsal X-shaped 

 cross of inirrow lines; beneathyellowish-white. Thedorsal cross consists 

 of a short longittnlinal median dark line, w hose mitldle is a little anterior 

 to the middle of tlu! back. Anteriorly this bifurcates acutely, sending 

 olV branches which reach nearly to the eyes: posteriorly, similar bifur- 

 cations, parallel in direction (sometimes ni'.niy continuons) with the 

 first, extend on to the sides of tln^ body. Halfway between the jioste- 

 rior folk ami the anus there are two other lines meeting at an acute 

 angle and jtarallel to the brandies of the po.sterior fork just mentioned. 

 ^951— 13uU U 23 



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