378 HriiBiB. 



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

 articulation marks the front of the eye. Skin smooth above, granu- 

 late beneath. Purplish blue above, immaculate, the colour sharply 

 defined along the sides ; upper lip white-margined ; beneath whitish, 

 immaculate. From snout to vent 32 millim. 

 Costa Eica. 



ff. $ . Oosta Kica. 



55. Hyla pulchrilineata. 



Hyla pulchrilineata, Cope, Proc. Amer. Philos. Soe, xi. 1869, p. 163. 



Form that of H. arlorea. Tongue slightly free behind. Vome- 

 rine teeth in a single transverse series opposite the posterior margin 

 of the choanse ; the latter much larger than the ostia pharyngea. 

 Canthus rostralis distinct ; loreal region concave ; eye large, tym- 

 panum one fourth its size. Fingers free ; toes webbed to the base 

 of the penultimate phalange ; disks well developed. The hind limb 

 being carried forwards along the body, the tibio-tarsal articulation 

 marks the front of the orbit. Skin smooth above ; granules of the 

 abdomen unusually weakly developed. Pale ashy brown above, 

 with five longitudinal citron-yeUow bands, the outer broadest; 

 femora finely yellow above and behind ; a yellow longitudinal line 

 on both the inner and outer sides of the tibia. From snout to vent 

 38 millim. 



San Domingo. 



56. Hyla andersonii. 



Hyla andersonii, Baird, Pi-oc. Ac. Philad. vii. 1854, p. 61 ; Cope, eod. 

 loo. 1862, p. 154. 



In proportions and general appearance similar to H. arhorea. 

 Tongue broad, slightly emarginate. Vomerine teeth in two oblique 

 series between the choanse, each directed inward and backward. 

 Tympanum about one third the size of the eye. Skin of upper sur- 

 faces smooth, minutely corrugated ; lower surfaces granulate ; a 

 fold across the chest. Above dull olive-brown ; the concealed 

 surfaces of limbs, especially those in contact with each other, thickly 

 sprinkled with circular yeUowish-white spots on a pale brown 

 ground, seen also on the armpits and sides of body behind ; a post- 

 ocular dark vitta extended down tho sides, and sending a dark 

 branch across the arm to the chin ; no bars on the limbs. From 

 snout to vent about 2 inches. 



United States — New Jersey to South Carolina. 



57. Hyla eximia. 



Hyla euphoi'biacea, Qilnth. Cat. p. 109, pi. x. f . 0. 



Hyla eximia, Baird, Proc. Ac. Philad. 1861, p. 61, and U.S. Me.v. 

 Bound. Sun. p. 29, pi. 38. f. 8-10; Peters, Mon. Berl Ac. 1869, 

 p. 880; Broochi, Bull. Sac. Philom. (7) i. p. 128. 



euphorbiacea, Steindachn. Nbvara, Amph. p, 69. 



