32. Belly granulated or pebbled; with large or small circular pads or discs on 



the ends of fingers and toes; Family HyUdae Tree Frogs 33. 



Belly smooth; fingers and toes with small, transversely oval pads or with' 



out pads or discs 63. 



33. Webs between the toes minute or absent; mostly under two inches long 



(head and body) 34. 



Fourth toe of hind foot half or more webbed; size various 44. 



34. Color on hack in two more or less well defined stripes or rows of spots, 



one on each side of the mid'line, which may or may not bend toward 

 the mid'line and join in a cross-shaped pattern 35. 



With a dark stripe or row of spots down the middle of the back (some- 

 times obscure to absent) , with or without another stripe or row of dark 

 spots on each side 37. 



35. Thighs yellow behind; back usually with a dark band on each side, these 



tending to bend toward the mid-line and join in a cross-shaped pattern; 

 Ohio to Maryland 



Pseudacris hrachyphona (Cope) Mountain Chorus Frog 

 Thighs spotted with yellow behind; back usually with dark blotches or 

 with obscure dark stripes 36. 



36. Vomerine teeth between the internal nostrils; dark band through the tym- 



panum extending back above the arm; N. C. to Florida and Louisiana 

 Pseudacris ornata (Holbrook) Ornate Swamp Frog 

 (Chorophdus ornatus of Cope) 

 Vomerine teeth behind the internal nostrils; dark band through the tym- 

 panum ending just before the arm; Texas 



Pseudacris strec\eri Wright 6? Wright Texas Chorus Frog 



37. Jaw pointed; with only one dark stripe or row of dark spots (often absent) 



down back, (not counting the dark band on each side back through the 

 tympanum); with a light line down the outer side of the tibia; getting 

 to be a little over one-half an inch long; southeastern states 

 Pseudacris ocularis (Holbrook) Little Chorus Frog 

 Jaw rounded; with three dark stripes or rows of blotches down back (be- 

 sides the tympanic stripes) ; larger; getting to be more than three- 

 quarters of an inch long 38. 



38. Usually with lengthwise dark markings on the hind legs; dark band back 



through the tympanum usually more conspicuous than the other mark- 

 ings on the back; Virginia to Georgia 



Pseudacris brimleyi Brandt and Walker Brimley's Chorus Frog 



Usually with transverse dark marking on the hind legs; dark band back 



through the tympanum not conspicuously more distinct than the other 



markings on the back; P. nigrita complex 39. 



39. Legs very short; length of leg to heel scarcely extending forward to the 



posterior margin of the tympanum; northwestern U. S. 



Pseudacris nigrita septentrionalis (Boulenger) Northwest 

 Chorus Frog 

 Legs longer 40. 



347 



