410 BULLETIN 34, UNITED STATES NATIONAL MUSEUM. 



to those familiar with the subject. It is not impossible that one or the 

 other of the subspecies may come to be recognized as species, but I 

 scarcely anticipate that such will be the case. As a whole, the Rana 

 areolata is pretty well distinguished by its very short palmation. Never- 

 theless, I have seen a specimen from Guatemala with similar posterior 

 feet, which is otherwise not different from the R. virescens. 



Rana areolata areolata Bd. & Gird. 



Eana areolata Baird & Girard, Proceed. Ac. Phila., 1852, p. 173; Baird, U. S. Mex. 

 Bound. Sarv., PI, 36, fi^s. II, 12. 



Fig. 103. Eana areolata areolata. No. 3304. iBdianola, Tex. ; \ 



General shape slender and limbs elongated. The heel of the extended 

 hind leg reaches half-way between orbit and nostril. Head about as 

 broad as long; quite deep. Sides oblique, with the nostrils, as viewed 

 from the side of head oblique, a little below the upper profile or canthus 

 rostralis, and with a marginal papilla. A Nligbt excavation between nos- 

 tril and eye, continued uuder the latter, along upper edge of maxillary, to 

 the tympanum, but scarcely below it. Top of the head slightly grooved, 

 or concave longitudinally. Eyes large and prominent; in the middle 

 third of the side of the head; nostril midway between it and tip of 

 snout. Tympanum circular, not two thirds of the diameter of the eye, 

 not extending back to angle of jaw, but nearer this than to eye, nearly 

 smooth centrally. Upper uiaxillary large; no glandular ridge of skin 

 on it. Very well-developed vocal vesicles on each side, their centers 

 opposite the posterior end of mandible. 



Internal nostrils very large, open, transversely elongate, with a verj^ 

 shallow groove extending to the side of the jaw. The vomerine teeth 

 are well developed, on two oblique protuberances, nearly in contact be- 

 hind, and placed between the nostrils, the posterior edges of which are 

 about opposite the anterior canthus of the eye. The tongue is large, 

 fleshy, longer than broad, with the cornua small and wide apart. The 

 Eustachian apertures are moderate. 



