Calm—Notes on the Vertebrate Fauna 487 
Green Frog. Rana clamitans Latreille. 
Quite abundant in Iron, and common in Houghton county. 
In the former they are found less often about the larger lakes 
than around the small ones, while in Houghton county they are 
found along the streams. 
Wood Frog. Rana cantabrigensis Baird. 
Common in Houghton and abundant in Iron county. Enroute 
to Lake 33 this species was met with continually in the path 
leading through the deep woods, and was never found except in 
the woods. The species is very active and difficult to catch, both 
because of this activity and the protectiveness of its coloration. 
Often found several miles from any permanent body of water, 
and never seen in the immediate vicinity of either lake or stream. 
Northern Frog. Rana septentrionalis Baird. 
Several individuals were found in Iron county, especially 
about the smaller of the lakes. Search about Lake 33 yielded but 
one specimen, while the smaller lakes beyond afforded some dozen 
specimens. With the exception of one Northern frog found in 
the basin of the spring which afforded the drinking water— 
some quarter of a mile through dense woods from the lake—the 
species was seen only in the lakes. Stomach examination of four 
showed the food to be small aquatic beetles (Dytiscus and Gyril- 
Ins), and immature aquatic insects as May-fly and damsel-fly 
nymphs. 
SYNOPSIS OF AMPHIBIA.NS. 
Species. 
Iron. 
Houghton. 
Necturus maculosus . ... ... ......_•. 
Plethodon erythronotus .... 
*2 
__ 
Diemictylus viridescens ..... 
*5 
X 
Bufo americanus ....... 
*c 
Hyl(i versicolor..... .. .... ..... .... 
*l 
*f 
Hyla pickef'ingii .......... 
1 
ChoropMlus nigritus . . . ... 
Rana pipiens ....... 
c 
c 
Rana clamitans.. ....... 
*c 
c 
Rana cantahrigensis ...._................ 
=^c 
’^f 
Rana septentrionalis ... . 
X 
(In che above table; * = new record for couTity; c = common; f = few; x = re¬ 
ported previously, but not found by the writer.) 
