Ui'ptiloi and ^liiipliihlons of Illinois. 327 



and in life is peculiar for its strong odor. It is said to utter a 

 "prolonged grating note while floating at the surface of the 

 water." 



Rana clamitans, Latr. Spring Frog, Green Frog. 



Rana clamitans, Latr., 1801, Kept., 1 1, p. 157 (S. Garman). 

 liana clamata, Dura, et Bibr., Erp. Gi'ii., 1842. VIII., p. 373. 

 Bana clamitans, Ilolbr., X. A. Ilerp., 1842, IV., p. 85, pi. 20. 

 liana fontlna/is, De Kay, Na*-. Hist. N. Y., I., Zuol. III., Rept. 



and Amph., 1842, p. «2. pi. 21. fi?. 54. 

 liana c/aniata, Kenii., Trans. 111. State Agr. Soc, 1853-54, I., 



p. 593. 

 Rana clamitans, Cope, Check List N. A. Ba'r. and Kept., 1875. 

 Rana clamata, Jioulenger, Cat. Batr. Sal. in Coll. Brit. Mus., 2d 



ed., 1882, Sal. Ecaudata, p. 36. 

 Rana clamitans, Davis and liice. Bull. Ill State Lab. Nat. Hist., 



I., No. 5, 1883, p. 24; Bull. Chicago Acad. Sci., 1883. 



Body about three inches long ; stout. Glandular folds on 

 the side of the body evident. Males with no saccular dilations 

 behind the angles of the mouth. Skin minutely roughened ; 

 granulate about the vent. Head of moderate size, obtusely 

 pointed. Margin of lower jaw notched on each side of the 

 symphysis, leaving a median projection. Tongue obcordate, 

 with two posterior lobes, extensively free posteriorly and later- 

 ally. Nostrils about midway between the tip of the snout and 

 the eye. Tympanum large, circular in outline, more than two 

 thirds the longitudinal diameter of the eye. First finger ex- 

 tending beyond the second when the two are opposed. Palms 

 with two indistinct tubercles, soles with but one tubercle. 

 Margins of webs markedly incurved between the toes; reaching 

 slightly beyond the base of the antepenultimate phalanx of the 

 fourth toe. A well-defined glandular fold extends along the 

 sides of the back from the posterior border of the eye nearly to 

 the posterior extremity of the body. An indistinct fold also 

 extends along the side of the head, lying between the tympa- 

 num and the corner of the mouth and terminating above the 

 axilla. 



Color above green or brown, darker posteriorly, with ob- 

 scure black spots of irregular size. White beneath, throat 

 yellowish. Tympanum brown. Pupil of eyes black ; irides 



