136 



The Ohio Naturalist. 



[Vol. VII, No. 7, 



2. Raiia palustris Le Conte. Pickerel Frog. There was one 

 specimen of this species in the collection. It was taken at 

 Heyden, Ontario, Canada, and differs in no way from western 

 Pennsylvania specimens of this species. The measurements in 

 meters are as follows: 



Length of head and body 0.585 



Length of head to posterior edge of tympanum 0195 



Width of head at posterior edge of tympanum 0205 



Diameter of tympanum 0045 



Diameter of eye 0055 



Length of tibia 0340 



Length of femur 0295 



Length of foot and tarsus 0250 



3. Rana septentrionalis Baird. There were four specimens 

 of this frog, all taken at Heyden, Ontario. Three are males and 

 one a female. Measurements in meters: 



No. 1 has a very pale coloration; the vermiculations are 

 scarcely visible ; snout obtuse ; no cross bars on the hind legs. 



No. 2 has a very dark coloration; markings indistinct; snout 

 medium obtuse ; faint cross bars on the hind legs. 



No. 3 has a bright coloration; markings distinct and of small 

 pattern; snout sharply pointed; distinct cross bars on hind legs. 



No. 4 has bright coloration; markings large and distinct; 

 snout sharply pointed; distinct cross bars on the hind legs. 



The coloration of these four specimens varies greatly, also 

 the size of the tympanum and form of snout. 



The skin of the back is smooth anteriorly, but becomes rough 

 and tuberculated posteriorly and on the sides; belly entirely 

 smooth. Cope says "The present distribution of the species is 

 entirely northern " and he includes it in a list of batrachia typical 

 of the Canadian fauna. It has been taken in the upper Mich- 

 igan Peninsula, and the writer took it at Vanceboro, Maine, 

 during May, 1901, where it was abundant. 



4. Kana catesbiana Shaw. Bull Frog. There was one 

 small adult and two young of this species in the collection. The 

 coloration of these specimens is dark, but not more so than some 

 Pennsylvania specimens, neither is the dorsal surface more 

 nodular. 



