Bcpfiles and Amphihinns of Illinois. B21 



Rana utricularia, Harlan. 



Raiia vfriovJarins, Amer. Jour. Sci. and Arts, 1825, X., p. 60; 



Jour. Acad. Nat. Sci. J'hila., 1820, V., p. 337. 

 H(f))a hnJeciiKi (in part), Dum. et JMbr., Erp. Gen., 1841, Vllf., 



p. 352. 

 Rana berlandieri, Eaird, Mex. Bound. Surv., 1859, III., Reptiles, 



p. 27, pi. 36, fig. 7. 

 liana hahama, subsp. heiiandieri, Cope, Check List N. A. Batr. 



and Rept., 1875. 

 Rana utricalaria, Boulenger, Cat. Batr. Sal. in Coll. Brit. Mas., 



2d ed., Sal. Ecaudata, p. 40. 



Size large; body about tbree inches long. Olive-green 

 above, v^ith isolated subcircular black spots. Legs spotted and 

 banded with black. Pale below. Males with saccular dila- 

 tions of the skin behind the angles of the mouth for the accom- 

 modation of the vocal sacs. 



Length of body, 2.50; from tip of snout to axilla, 1.25; 

 femur, 1.25; tibia, 1.37; tarsus and fourth toe together, 1.94. 

 The above measurements are from a male taken near Phila- 

 delphia, Pa. A male from Macomb, Miss., is smaller. 



Dunleith (Ridgway), Union Co. 



The major part of the description of B. pipiens will ap- 

 ply to this species. The size, proportions, and the plan of 

 markings are about the same in both species. The saccular 

 dilations of the skin in the males of this species will readily 

 distinguish them. Both sexes can probably, in most cases, be 

 distinguished from those of B. pipiejis hy the character of the 

 spots and by the general color. In this species the spots are 

 fewer in number, are smaller, rounder, and more widely sepa- 

 rated. The anterior of the three spots of the head is smaller 

 than the other two, or may be wanting. The general color is 

 more brown than green, and gives specimens a slight general* 

 resemblance to B. palastris. A few immature specimens of 

 Ran 33 from Villa Ridge and Anna are referred with some hesi- 

 tation to this species. One of the largest of these is a male of 

 the year, and shows the distended skiu at the corners of the 

 mouth. The ground color of these specimens in life was slate- 

 gray with a slight coppery tinge. The head, above, in males 

 was pale green with a brassy tinge over the eyes and along the 

 sides of the snout. Pupil of eye black; iris coppery above and 



