480 



BOULENGER. 



Measurements in Millimeters 



1. 2. 3. 4. 5. 6. 7. 8. 9. 



From snout to vent 39 45 39 56 46 44 41 57 57 



Head 13 15 13 18 16 15 14 19 19 



Width of head 11 13 12 18 16 13 13 19 17 



Snout 5 6 5 6.5 6 6 5.5 6 7 



Eye 5 6 5,6.5 6 6 5.5 6 7 



Interorbital width 3 3.5 3 4 4 3.5 3.5 4 4 



Tympanum 3 3.5 3 4 4 3 3.5 4 4 



ForeUmb 22 27 25 36 30 28 29 36 33 



1st finger 4.5 6 4.5 7 6 6 5 7 7 



2nd " 4 5 4 6 5 5 4 6 6 



3rd" 6 7 6 9 7 7 7 9 8 



4th « 4 5 4 6 5 5 4 6 6 



HindUmb 67 70 69 99 70 71 73 101 93 



Tibia 21 24 22 31 23 22 24 31 29 



Foot 21 22 20 30 21 22 23 31 29 



3rd toe 12 12 11 16 12 13 13 17 15 



4th " 17 18 16 24 17 19 19 26 23 



5th " 12 12 11 17 12 13 13 18 16 



1-2. Bebedero, Costa Rico. — 3-5. S. Carlos, Costa Rica. — 6-8. La Palma, 

 Costa Rica, 1600 m. — 9. Costa Rica. 



This species is not without analogy with the Old-World forms 

 connecting the subgenera Rana and Hylorana; another case of para- 

 lleHsm, according to me. 



