"en RESA til NORRA AMERICA." 95 



americana Laur.), a species of Leptodactylus (possibly 

 L. pentadactylus Laur. ; Blgr.), and apparently, in the de- 

 scription, a species oi Hyla (possibly i?. licheiiata Gosse ; 

 Blgr.). Kahn's reference is probably to the leopard frog ; 

 Catesby's is without doubt to the bull frog ; and Seba's 

 figure is that of the marine toad, JBufo marinus. Conse- 

 quently i?a7ia ocellata L. includes seven distinct species, 

 belonging to five different families. From this, if we con- 

 form to general usage, we get no scientific name for Kalm's 

 frog, and must take that next in order of time properly 

 applied to this species. 



Rana virescens having been ruled out, there seems to be 

 none available previous to Ranapipiens of Schreber. In 

 the eighteenth volume of the periodical "Der Naturfor- 

 scher," Halle, 1782, p. 182, he describes and figures the 

 species in a manner that leaves no doubt whatever as to 

 its identity. He discards previous names on account of 

 the confusion and uncertainty attending their use. His 

 synonymy is quoted entire : 



"Der Pipfrosch. 



Rana pipiens. — S. Tab. iv. 



Rana aquatica. Catesb. Carolin. 2 p. 70. 

 tab. 70. Klein quadrup. p. 119. 



Rana virescens, plantis (muss heissen : pal- 

 mis j tetradactylis fissis, palmis (muss heis- 

 sen : plantis) pentadactylis semipalmatis ; 

 macula depressa fusca pone oculum. Kalm 

 resa til norra America torn. 3. p. 46. 



Rana halecina, Sill-hoppetossor. Kalm 1. c. 

 p. 45." 



As seen above, R. halecina does not occur in the Resa. 

 Schreber's use of R. virescens^ with his punctuation, does 



