528 



ZOOLOGY— BATRACH I ANS A^D REPTILES. 



EANA SEPTENTRIONALIS, Baird. 



Rana septentrionalia, Be, Proc. Acad. Nat. Sci. Phila., 1854, CI (B. sinuata, Bd.). 



Hab. — Canada to Montana and Utah. 



Very numerous in the vicinity of Provo, Utah, which, as far as known, 

 is its most southern and western limit. 



No. 



Locality. 



Date. 



s Collector. 



F i 



F 2 



F3 



Provo, Utah 



July, 1S72 

 ....do 



Dr. II. C. Yarrow. 

 H. W. Henshaw. 



Do. 



do 



do 



....do 







RANA ONCA, Cope, sp. nov. 

 Plate XXV, Figs. 1, 2,3. 



Head oval ; muzzle sloping to the lip. Diameter of tympanic mem- 

 brane equal distance between nares and between nostril and orbit, and 

 three-fourths the diameter of the orbit or the distance from nares to 

 margin of lip in front. Vomerine teeth in fasciculi behind the line connect- 

 ing the posterior borders of the choanse. A dermal fold on each side of the 

 back, and a short one behind the angle of the mouth, with some scattered 

 warts on the sides ; skin otherwise entirely smooth. Toes obtuse, with 

 wide webs reaching to the base of the penultimate phalange. One long 

 metatarsal tubercle ; no fold on the tarsus ; a dermal border on outer toe. 

 The heel extends beyond the end of the muzzle. 



Light-brown above ; below yellow. Three rows of rather distant, solid, 

 small, black spots between the dorsal folds ; two or three rows on each side ; 

 none of the spots yellow-bordered. Head unspotted ; no band on the lip. 

 A brown, vertical band on the front of the humerus. Scattered spots on 

 tibia and femur ; clouded spots on the posterior face of the femur. Size of 

 liana clamata. 



This frog, of which a female specimen was obtained, combines charac- 

 teristics of different groups ; its coloration resembles somewhat that of the 

 eastern or typical form of liana halecina, but the full pahnation of the hind 



