General Discussion 47 



tail in tail length of tail 2.4-3.5, average 

 2.8; tail tip obtuse ; second upper row in 

 upper fringe 1/4 to 2/7; median space in 

 second upper row i 1/2 in either lateral 

 part; third lower row in first lower row 

 1/4-1/ 5 shorter; teeth 2/3 rarely 3/3. 

 Transformation size 43-59 mm. Egg 

 mass, a surface film. North America east of 



Rockies Rana catesheiana. 



hh. Tadpoles to 84-100 mm.; eye on or just 

 above lateral axis; tail tip acute or acu- 

 minate (rounded in R. onca) teeth 2/3; 

 second upper row in upper fringe 1/6 to 

 1/15: median space in second upper row 

 2.5-11 in either lateral part; third lower 

 row in first lower row 1/2-1/3 shorter, 

 i . Depth of tail in length of tail i . 45-1 • 8, 

 average 1.7; tail tip acuminate; dorsal 

 crest equal or less than tail muscula- 

 ture; muciferous crypts indistinct; 

 spiracle 1.08- 1.44 nearer vent than 

 snout; mouth in interorbital distance 

 1 . 5-2 .37, average 1.94; internasal 

 space in interorbital distance i . 8-2 . 6, 

 average 2.16; 2nd upper row 1/6 to 

 1/8 of the upper fringe; median space 

 of 2nd upper row 2 1/2 to 4 1/2 times 

 either lateral row ; third lower row i . 5 

 less than horny beak, much shorter 

 than single row of lower labial papillae 

 and I /3 shorter than first lower row of 

 teeth; ist row of lower teeth equal to 

 horny beak. Transformation size 32 

 or 37-48 mm.; Egg mass, a surface 

 film. Georgia — Florida — Louisiana . . 



Rana grylio. 



ii . Depth of tail in length of tail 2.5-4.7 

 averages 3.1-3.87; tail tip acute; 

 dorsal crest less than tail musculature ; 

 muciferous crypts distinct; spiracle 

 1. 07-1. 08 nearer vent than snout; 

 mouth in interorbital distance i . 3-1 . 8, 

 average 1.5; internasal space in inter- 

 orbital space 1.25-2.0, averages 1.6- 

 1.75; second upper row of teeth equal 

 to or greater than horny beak; 



