NATURAL SCIENCES OP PHILADELPHIA. 157 



and posterior face of the tibia. A light line on the posterior face of each 

 femur. 



Habitat. Near Turbo, New Granada. Mus. Smithsonian, (No. 4347.) Acad.. 

 Philadelphia. 



The fewness of the dermal plica?, the less prominence of the muzzle, and 

 the want of spots on the back, separate this species from the f us c u s. In 

 tseniatus there are no folds, and the vomerine teeth are in fasciculi. 



Pseudacris feriarum. EeloecetesferiarumB&ird, Proc. Acad. Nat. Sci. Phila. 

 1854, p. 61. 

 The differences between Pseudacris Fitz and ITeloecetes Baird, do not seem 

 obvious. The present species was described from specimens found near 

 Carlisle, Penna. I have found it abundant near Gloucester, New Jersey, and 

 in the valley of Trough Creek, in the southern part of Huntingdon Co., Pa. 



Phrynocerus testudiniceps. 



Top of the head plane, the profile of the muzzle descending from the nasal 

 process of the frontal bone at an obtuse angle. Space between the orbits 

 slightly concave, wider than the diameter of the orbit. Temporal ridge not 

 prominent. Dermo-ossification roofing over the temporal fossae, as in Spix's 

 figure of Rana scuta ta, but not enclosing the tympanum posteriorly or 

 inferiorly. Its posterior border is nuchal, continuous, concave; it is further 

 behind the orbit than the end of the muzzle is anterior to the latter. Tym- 

 panum vertically oval, longest diameter equal to the length of the third phalanx 

 of the third anterior digit. Vomerine teeth in separate transverse series ante- 

 rior to the inner margin of the internal nures. Anterior digits free; posterior 

 fully webbed, except the extent of the last two phalanges of the median. 



Skin (in a stuffed specimen) without folds, but with obtuse warts. Length 

 of head and body V in. Head 1 in. 9 1. Tarsus aud longest toe 3 in. 9 1. 

 Breadth of jaws on the gular region, 2 in. 9 1. 



Above bright yellowish and brownish green, marbled with black. Sides and 

 inferior surfaces of extremities without marbling. Subanal region blackish, 

 spotted with yellow. Belly and gular region whitish, a few black vermicula- 

 tions on the latter. 



Habitat. Panama. Mus. Academy, Philadelphia. Lieut. Fields. 



Phrynocerus* appears to be a name applicable to the Ranid genus, which 

 differs from Ceratophrys, in wanting a dorsal dermo- osseous shield. Whether 

 the P. testudiniceps truly belongs to it, is yet uncertain. It is remarka- 

 ble in the relatively small head, plane profile, and anterior position of orbits. 



Bufo hasmatiticus. 



Form slender. No bony ridges on the superior surface of the head. Muzzle 

 short, high, angular; canthus rostralis a sharply-defined right angle, con- 

 tinuous with a fold on the eyelid, the paratoid gland, and the side nearly to 

 the groin. Nostrils latero-vertical. Mouth large, its commissure directed ob- 

 liquely downward. Tongue elongate, oval, extensively free. Ostia pharyngea 

 smaller than internal nares. Tympanic disc vertical, elliptic, one-fourth the 

 extent of the eye. Paratoid gland lateral, smooth, elongate, angular externally. 

 Anterior extremities slender, reaching beyond the posterior face of the femur. 

 Palmar tubercles few, one large, oval, median. Hinder extremities slender : 

 heel reaching to the orbit. Sole smooth ; three metatarsal tubercles all 

 slightly developed, especially the median. Palmare of the toes slight. Skin 

 everywhere smooth, except a few granulations on the occiput. Length of head 

 and body 1 in. 6 1. Hinder extremities 1 in. 10 1. 



Above fawn brown, tinged with pink. Sides of the head and body, beneath 

 the lateral fold, red-brown, brighter posteriorly. A pale spot anterior to and 

 beneath the eye. Two black, white-bordered spots on the interscapular region, 

 arranged en chevron; two similar sacral spots. Small spots on the femur. 



*Bibron, Techudi, Classif. der Batrachier, p. 44. 



1862.] 



