102 



OHIO STATE ACADEMY OF SCIENCE. 



115- 

 115. 



19. Body bright orange yellow, with irregular black spots; tail longer than 

 rest of body. — Spelerpes longicaudus — p. 113. 



Body not bright orange yellow ; no black spots ; tale equal to or less 

 than rest of body. 20. 



,20. Lower jaw projecting beyond upper. Body slender. — 



Amblystoma microstomum — p. no. 

 Lower jaw hot projecting. [Body stout. 21. 



21 . Habits terrestrial ; never in immediate vicinity of water. Body spotted 



with white. — Plethodon glutinosus — p. 112. 



Habits aquatic, being found in or near water. 22. 



22. A dorsal band of brown. 23. 



No dorsal band of brown. — Gyrinophilous porphyria cus — p. 112. 



23. With a series of small red spots on the sides. — 



Desmognathus fusca auriculata — p. 

 Mo series of' red spots. — JJcsmognathus fusca fusca —p. 



-24. ffoes'wxfh'dut terminal discs or suckers. 25. 

 Toes 'with' terminal discs or suckers. 32 . 



25. Size very large, 5-8 in. in length. — Rana catesbiana — p. 121. 

 Size smaller, not over 4 in. in length. 26. 



26. Jaws without teeth. Skin warty. — 



Bufo lentiginosus americanus — p. 117. 

 Jaws with teeth. 27. 



27. With a very prominent brownish band running along the sides of head, 



through the eye, to the angle of the mouth. — 



Rana sylvatica — p. 122. 

 No brown band through eye. 28. 



28. Body uniform brownish or green, without blotches, 29. 

 Body with large blotches. 30. 



29. Ear smaller than eye. — Rana septentrionalis — p. 121. 

 Ear as large or larger than eye. — Rana clamala — p. T21. 



30. Blotches on back arranged it two rows, the blotches of one row being 



opposite those of the other. — Rana pahistris — p. 121. 



Blotches irregularly arranged, the blotches of one row alternating with 

 those of the other. 31. 



31. A longitudinal band on front of thigh. — 



Rana virescens virescens — p. 120. 

 No longitudinal band on front of thigh. — 



Rana virescens brachycephala — p. 120. 



32. Habits palustrine, on the ground in swamps. 33. 

 Habits arboreal, living in trees and bushes. 34. 



33. Toes webbed ; top of head bright green. — 



Acris gryllus crepitans — p. 118. 

 Toes not webbed ; head brownish. — Chorophilus triseriatus — p. 118. 



34. Length over 1 V 2 in. Green. — Hy la versicolor — p. 

 Length less than 1 %, in. Yellowish. — Hyla pickeringii — p. 



35. Four legs developed. 36. 

 Legs not developed. 51. 



36. Body encased in shell. — Tbstudinata. 37. 

 Body not encased in shell. 47. 



37. Shell flattened, leathery and pliable. 38. 

 Shell heavy, firm, more or less arched. 39. 



38. Nostrils at end of snout. — Asfidonectes spinifer — p. 138. 

 .Nostrils not at end of snout, but beneath it.— Amyda mutica — p. 138. 



120. 

 119. 



