4. nvr.A. 401 



the tibio-tarsaJ articulation reaches the front of the orbit. Skin 

 Bmooth above, sides rugulose. Dark olive above, with a short lon- 

 gitudinal black bar over each scapula, and one from eye to eye, with 

 a trace along the coccyx ; below yellowish. Male with a large gular 

 vocal sac. From snout to vent 28 millim. 

 Mexico. 



104. Hyla punctariola. 



Hyla punctariola, Peters, Mori. Berl. Ac, 1863, p. 402 ; Cope, Jaunt. 

 'Ac. Philad. (n. s. ) viii. 1876, p. 106. 



Tongue heart-shaped, openly emarginate. Vomerine teeth in two 

 small groups behind the level of the choanse. Snout slightly longer 

 than the diameter of the eye ; tympanum somewhat more than one 

 third the diameter of the eye. Fingers quite free ; toes three- 

 fourths webbed : disks moderate. The hind limb being carried 

 forwards along the body, two thirds of the tarsus extend beyond the 

 lip of the snout. Skin smooth. Brown above; a cross band between 

 the eyes and a large spot on the snout ; upper lip with whitish bars 

 alternating with brown ones; limbs cross-barred with dark brown ; 

 fingers and toes cross-barred with brown and white ; beneath dirty 

 white : the throat brown, dotted with white. From snout to vent 

 22 millim. 



Veragua. 



Mr. Cope, I. <•., distinguishes three varieties of coloration, which 

 he describes as " subspecies,'' suspecting, however, that they may be 

 true species. These are named pictipes, mcesta, and monticola. All 

 three from Costa Rica. Mr. Cope describes these Costa-Bican 

 Specimens as having a web at the base of the outer fingers, and the 

 •• lii iel extends nearly or quite to the end of the muzzle," thus 

 'lilleiing widely from the original description by Trot'. Peters. 



105. Hyla bistincta. 

 II; la bistincta, Cope, Proc. Am> r. Philos. Soc. xvii. 1877, p. . v 7. 



Vomerine teeth in two small groups between the choanse. Head, 

 particular!) the interorbital region, broad and flat j canthus rostralis 

 iifltincl : tympanum exceedingly small, one fifth the diameter of the 

 eye. overhung by a thick dermal fold. Fingers free ; toes not fully 

 wehhetl. The hind limb being carried forwards along the body, the 

 til >io-t 1 1 s.il articulation reaches nearly the tip of the snout. Dark 

 bluish plumbeous above, yellow beneath ; Bides marbled with the 

 two colours; hinder side of thighs pale brown, with a few yellow 

 specks along the superior border. Male with rugosities- on the inner 

 side of the first finger during the breeding-season. From snout to 

 vent to millim. 



Vera Cruz. 



2 D 



