78 THE NAUTILUS. 
Power of Maine, Augusta, 1869,’’ states: ‘‘The total count of 
those [lakes] represented upon the maps as connected with our 
rivers * * * not including the multitude of small ponds * * * 
is not less than one thousand six hundred and twenty.’’ Of 
the above lakes 1568 are located within the State. In the 
‘¢Fourth Annual Report of the State Water Storage Commis- 
sion,’’ 1913, page 322, the number of lakes and ponds in Maine 
is given as 2,222. 
I have examined many of the Maine lakes, and from Moose- 
head Lake in the center of the State north to Temiscouata 
Lake, in Quebec, has been my collecting ground for over 30 
years. 
I have found specimens of Lymneus emarginatus Say, that 
seem to compare with Say’s description in only one lake; this 
is located on the east branch of First River between Long Lake 
and Cross Lake, Aroostook County, in Township XVII, Range 
4, about lat. 47° 10’ N., and long. 68° 16’ W. It is called 
Mud Lake or Second Lake. Prof. F. C. Baker has examined in 
his studies of the ‘‘ Lymneide of North and Middle America,”’ 
a large series of specimens from Mud Lake, and his opinion is 
that we have the true type in this lake. If students of shells 
will agree with me, let us call this the type locality of Say’s 
Iymne@us emarginatus. For a description of this locality see 
THE Navtiuus, Vol. XV, page 127. 
Prof. Edward L. Morse visited this locality (Mud Lake) in 
June, 1859, hoping to rediscover Limnzxa ampla of Mighels, and 
gave me a full account of his trip at the meeting of the Boston 
Malacological Club, Feb. 10, 1918. Prof. Morse in going to 
this lake, followed the account given by Dr. Mighels, and I 
followed the published accounts given by both Mighels and 
Morse. The fact is Lymnea ampla Mighels is not found in Mud 
Lake (or Second Lake). 
There is no name on any of the old maps of Mud Lake (or 
Second Lake). Say’s original paper gave the locality: ‘‘ In- 
habits Lakes of Maine,’’ and others say ‘‘ Lakes in northern 
Maine (Say).’’ If northern is correct, Mud Lake is the type 
locality. 
The type specimen of Lymnaea ampla was lost in the fire that 
