THE BATKAC'lUA OK NOR I'll AMKKICA. 



349 



ed., 



The specimens of this species are for the present inaccessible to me. 

 I tUerelbre have given above a MS. description of Professor Buird's. 



riYLA — Lanrenti. 



Specimen SynoiLsis Reptiliiiin, 170'^, p. '.Vi; Diiin. & Bibr., p. 54'J; Giliitb., 

 Cat, p. l»8; Ciipe, Nat. Hist. Rev., Hll."), p. 110, uiul Jouni. Ac. 

 Phila. CJ), VI, l«(i(>, p. 8(), and l-^dT, p. '^00 ; lloiileiiger, Cat. Batr. 

 Sal. Brit. Mils., ISH'i, 2i\ ed., p. 337. 



Calninik'H I'it/.in-;.. N. Class. Rcptil., p. 3s ; Wasl., Syst. Ainpli.p.200 ; Tscbndi, Class. 



Batr., p. 7J; Ctipc, .Joiuii. Ac. I'liila. C-i), vi, lf^G7, p. *200. 

 Aiihtrii Way!.. /. <•.. p. -201. 

 ////(C Wajil., /. v., p. -201. 



scjiiKij- \y.i<i\., 1. f., p. "201. 



.s';i/i((wo)7(i/H(7n/8 Tscbndi, /. c, p. 71. 



I.DpliiijniH Ts( linili, /, v., \\. 73. 



IhudruUijit^ TMliudi, /. c. p. 74. 



lianouhn Tscbndi, /. c. ]>. 7t;: ('(ipi-, .lonrn. Ac Pliila. ("2), vi, l.^fiO, p. 85. 



/.i/())i(/ Tscliudi, /.<•.. p. 77 : Duin.A Bi!"!., p. .'>(i:i ; (iiin'.ii. Cat., p. l)(>. 



Ilillitiiiiilwii Bnrnn-i^ifr. I'.vliiwtiT. I-'aim. iSias., p. lO'J. 



tViirof/ci/d" Kt'l'erst., (iiitlin}{. N;iclir., l-ti", i>. ;i."jS. 



C'lphiiinuiilix IWl'yh, Mini. Iteil. Ac., 1^70, p. (!.'>1. 



Fr()nti>pari«'tal bones not developed, cjonsistinjj of two narrow, sepa- 

 rated snpiaorbitalplaU's. l']tlinioidlar;;el.vdt'V('lopedanteri()rl.v, dilated 

 over the antt'iior part of the «»rl)its, widely .separatiii}; the obliipie pre- 

 frontals. IJrostyle attaeiied to two condyles. Belly areolated. No 

 parotoid };land. Pupil r(»und or transver.se. Voiiieri'ie teeth present. 

 Tonjine attached to one-third free, posteriorly. l)i<;itai dilatations large 

 or small : a more or less extensive wel) between the posterior toes, 

 Coriiim not involved in hyperostosis of the cranial bones. 



This genus, eud)ra<!ing more than half the family of Ilylida*, fur- 

 nishesa type of structure intermediate between the extremes ottered by 

 other genera, of which that reiire-seiited by llypsiltoas may be said to 

 be th«' most typical. This genus is in some degree an epitome of the 

 family in its distribution. The llylida' have I een created to iidiabif, 

 the vast world of foliage that shades the tropics of the New World, aiul 

 restrict the insect lile that peoples it, and in prop(Ution to this profusion 

 of vegetable life i.< the abundance of spccu's. 'J'he arboreal Anura as- 

 signed to the sjime department of the Old World is of a witlely ditlerent 

 type, and, as has been shown, a branch of the higher stock of aquatic 

 frogs that abound in the Northern Hemisphere, 





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