Tin: IJATUACIIIA OF NOKTII AMKKICA. 



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Mody sleiulorest of all the Nortli Aiin-rican s|(eci«'S : limlis elon^jati'd. 

 Outline of lioiul acute, aiij^led, sli;>li(ly cuivt'd on sides, latlu-r l(ni;,'er 

 tliau broad. Snout rather pointed; sides of the snmit somewhat ob- 

 Iii|Uo; leiiffth of head enterinjjf total a little over three times. Tym- 

 iKiiiiiiii small, about half the diameter of the eye, a fold of skin above it. 

 Ti)ii;;ue nither ovate, slijjhtly notched behind, where it is free for one- 

 third its lenji'lh. Vomerine protuberances small, roun«led, their axis 

 sli^iitly inclined, almost exactly between the posterior nares; sepa- 

 rated iVomeach other and tlui nares by tlu^ same interval. The ranj^es 

 ol tcetli are a little behind, about on a line with the posterior mary;ins 

 of tilt' nares. 



Tlie extremities arei rather slender and elontrated. The heel of the 

 cxteinlcd hind lej^s marks the end of the muzzle. Tibia about half 

 K>it;;tli of body; hind foot as lon<^ as arm from elbow: two and a half 

 times in total len},'tli. The lln>;»'rs are dilated at the tip into disks, two- 

 thirds as hw'^ii as the tympanum, and webbed at the base to the 

 iiiili'iMiiMltimate articulation of the lonj,'est. Tlu' third is lonj^est, the 

 loMiili lit tie shorter; then the second and first. The hind feet are webbed 

 to the disks (the penultimate articulation in the fourth an<l loni^est toe), 

 the web want in;,' on the inner si«le of the lu'uultimate Joint of these(;ond 

 ami tliiitl. The third toe is a little longer than the lifth. There is a soft 

 tubenle at bast; of inner toe and a very rudinu-ntary one at base of 

 outer. 



The skin abov(^ ami on ui>per part of sides is smooth, without any 

 pustules; in larger speciirni: a faint and softetu'd ;,'rauulati(Ui : the belly 

 and inlerior fac(! of thighs strongly graiudated : the throat moderately 

 so; smooth between the arms. 



Color of body and legs above and sides olivaee«)us-brown or olive- 

 green, with a few scattered, well detined spotsof white. l!eneatli white, 

 no iimttling anywheic, A well-deliiied line of white starts, on the 

 siittut, generally u;iited with its fellow on the opposite side, and passt-s 

 haikwards, parallel with the vA'^i' of the npi»er jaw, under the tym- 

 pamnu and over the armpit; extends half way or more along the sides. 

 It has as a liorch'r a deei»>r shade of the dtusal color. A similar line ex- 

 tends along the posteri(U' margin of the fore h-gs. most conspicuous 

 at theclb(»w, and reaches to tht; outer tingrr. On the hind leg a simi- 

 lar line passes from the knee, aiul extends along the posterior or superior 

 margin of the tibia along tin; exterior edge of the tarsus and foot to 

 tin- tip, and a second line is seen in some on the anterior margin of the 

 tibia; a short transverse white line abovi- the anus. According to Dr. 

 Ilolbrook, this species in life is bright grass green above, the light lines 

 straw color. 



8pociinens from west of the "..^sissippi vary in appearing a little more 

 granulated aliove. Some males exliil»it a more oi- less tinge of green 

 on the sides of the chin. Sometimes the hiteral white line is int<'r- 

 rupted, and those on the sides of the legs more v.r loss obsolete. 



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