AMERICAN FROGS OF THE GENUS RANA. 463 



between the dorso-lateral folds, on the back, i to i the length from 

 snout to vent. 



Brown or orange above, sometimes speckled and spotted with black; 

 a black streak on the canthus rostralis and along the outer border 

 of the glandular lateral fold; a more or less distinct whitish streak 

 from below the eye to the shoulder; no cross-bars on the limbs, but a 

 more or less distinct dark streak along the thigh and the tibia. Lower 

 parts white. 



Male without secondary sexual characters. 



Nasal bones narrow, widely separated from each other and from the 

 frontoparietals ; only a small part of the ethmoid exposed ; zygomatic 

 branch of squamosal long, extending to below the eye. 



Measurements, in Millimeters, of the types. 



cf 9 ? 



From snout to vent 56 80 74 



Head 19 25 23 



Width of head 20 26 25 



Snout 7 10 9 



Eye 7 9 8 



Interorbital width 3.5 5.5 6 



Tympanum 4 5 5.5 



Fore Hmb 35 51 43 



1st finger 5.5 10 9 



2nd " 5 9 8 



3rd " 6.5 12 11 



4th " 5 9 8 



Hind limb 87 122 113 



Tibia 26 38 34 



Foot 27 41 37 



3rd toe 13 23 21 



4th " 21 33 29 



5th " 13 24 21 



Habitat. — Rio Sucio, Costa Rica. 



This frog strikingly resembles some specimens of the African R. 

 galamensis. — another example of parallelism between New and Old 

 World species, as close genetic relationship can hardly be postulated 

 to account for this resemblance. 



I cannot help thinking that R. godmani will some day prove to be 

 identical with Levirana vibicaria, Cope. Except for the presence of 

 feebly developed vomerine teeth, the longer inner finger and the more 



N. 



