22 HERPETOLOGY OF MICHIGAN. 



c^ Paraspheuoid teeth absent. Yomero-palatine 

 teeth in transverse or posteriorly diverging 

 series extending posteriorily over the para- 

 sphenoid. Tail compressed. Outer and 

 inner toes on hind foot rudimentary. Sala- 

 inandridav. 



d\ Costal grooves indistinct. Color 

 varying from olive green to red- 

 dish brown above 



. . . .Dlcmlctylus viridesccns, p. 36. 

 a-. Tail absent in adult. Body short and broad. Hind limbs 

 adapted for leaping. Salientia. 



b\ No maxillary teeth. Parotid glands present. Skin 

 Avarty. BufonicJae. 



c^. Parotids oval. Cranial crests divergent be- 

 hind Bufo americanus, p. 39. 



b-. Maxillary teeth present. Parotid glands lacking. 

 Fingers and toes enlarged at ends to form adhesive 

 disks. HyUdae. 



c^. Disks large. Color green, gray or brown with 

 irregular dark blotches. Irregular dark 

 star-shaped blotch on upper i)art of back. 



Hijla vcrsicoJor, p. 41. 



C-. Disks medium. Oblique dark cross on back. 

 J^ark mark between eyes. Limbs barred. 



Hyla pk'keHngil, p. 43. 



c". Disks small. Color - variable with three 

 oblique blotches on sides. Dark triangular 

 spot between eyes. Light line from eye to 



arm Acris (jrylhis, p. 45. 



c*. Disks small, scarcely discernable. Color 

 changeable. Three longitudinal dark stripes 

 on back. Dark line from eye to arm. 



Chorophilus nigritiis^ p. 47. 



b". Maxillary teeth present. Parotid glands lacking. No 

 adhesive disks. Ranklae. 



c^. Lateral folds large. Color green with two 

 irregular rows of rounded dark spots 

 edged with lighter color on back. Legs 

 barred or spotted Rami pipiens, p. 49. 



