4. HTLA. 403 



behind the level of the choanae. Head broad, snout very short ; 

 canthus rostralis obsolete ; tj'mpanum two fifths the diameter of the 

 eye. Pingers free ; toes quite short, only about half -webbed ; disks 

 nearly as large as the tympanum." The hind limb being carried for- 

 wards along the body, the tibio- tarsal articulation reaches the posterior 

 portion of the orbit. Superior and lateral integument thickened, 

 and studded on the back with rather large, obtuse warts. Light 

 purplish brown, with or without a broad blackish band extending 

 from above the tympanum to the groin, separating the darker dorsal 

 region from the sides, i'rom snout to vent 38 miLlim. 

 Vera Cruz. 



109. Hyla acuminata. 



Hyla acuminata, Cope, Proo. Ac. Philad. 1862, p. 354. 

 Scytopis acuminatus, Cope, Proo. Ac. Philad. 1874, p. 124. 



Tongue subcircular or suboval, slightly nicked and scarcely free 

 behind. Vomerine teeth in a straight series between the large 

 choaniB. Head depressed, longer than broad ; snout subacuminate, 

 twice as long as the diameter of the eye; canthus rostralis indistinct; 

 loreal region not concave ; eye rather small ; interorbital space 

 broader than the upper eyelid ; tympanum very distinct, a little 

 more than half the diameter of the eye. Fingers free ; no projecting 

 rudiment of poUex ; toes three-fourths webbed, first quite free ; disks 

 nearly as large as the tympanum ; subarticular tubercles moderate. 

 The hind limb being carried forwards along the body, the tibio- tarsal 

 articulation reaches between the eye and the tip of the snout. Upper 

 surfaces tubercular, the tubercles most distinct on the head and the 

 sides of the body ; heel with a conical tubercle ; lower surfaces gra- 

 nulate. Brown above, marbled with darker ; limbs cross-barred ; 

 whitish beneath, throat and chest dotted with brown. From snout 

 to vent 40 miUim. 



S. Apierica. 



a. 5 . British Guiana. 



b. $ . Surinam. Mr. Bartlett [0.1. 



c. 5 . Santarem. Mr. Wickham [0.]. 



110. Hyla rubra. 



Hyla rubra, Giinth. Cat. p. 110. 

 Hyla rubra, Baud. Rain. p. 26, pi. 9, and Pept. viii. p. 53 ; Latr. 



'Pept. ii. p. 176 ; Dum. Sf Bibr. p. 592 ; Burmeist Erlautr. p. 109 ; 



Eeinh. Sf Liitk. Vidensk. Meddel. 1861, p. 196 ; Steindachn. Novum, 



Amph. p. 60; Peters, Mon. Berl. Ac. 1872, pp. 207 & 218. 

 Calamita ruber, Merr. Tent. p. 171. 

 Hyla lateristriga, Spix, S^iec. Nov. Test. Pan. p. 32, pi. 6. f. 4. 



CEerulea, Spix, I. c p. 37, pi. 10. f. 1. 



x-signata, S]nx, I. c. p. 40, pi. 11. f. 3. 



Auletris rubra, Wagl. Syst. Amph. p. 201. 



Hvla cynocephala. Bum. Sf Bibr. p. 558; Peters, Mon. Berl. Ac. 



"1873, p. 613. 



2d2 



