1 36 
The Ohio Naturalist. 
[Vol. VII, No. 7, 
2. Rana 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.0585 
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: 
Specimen 
No. 
Lg. of 
head & 
body 
Lg. of 
femur 
Lg. of 
tibia 
Lg. of ; 
ft. and | 
tarsus | 
Eye 
Tym¬ 
panum 
Width 
of 
head 
No. 1 male... 
. 0655 
.0315 
. 0345 
. 0350 
. 0070 
. 0080 
.0245 
No. 2 male... 
. 0635 
.0315 
. 0330 
. 0355 
. 0070 
. 0075 
.0240 
No. 3 male.. . 
. 0665 
. 0305 
. 0335 
.0355 
. 0075 
.0100 
. 0260 
No. 4 female.. 
.0700 
. 0305 
. 0340 
.0360 
. 0075 
. 0060 
. 0255 
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. Rana cateshiana 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. 
