106 THE NAUTILUS. 
of the Nauritus to record the fluke found in Philomycus caro- 
linianus collected at Munsonville, N. H., July 7, 1919. So 
little is known regarding this interesting and important micro- 
scopic animal and its destructive nature to sheep, cows and even 
man, I think it is well worth recording. As far as I know this 
is the first instance of the fluke being found in Philomycus. 
The life history of the fluke is so meagre it is impossible for me 
to determine the species, but the accompanying enlarged figures 
will give an idea of their appearance. They were transparent 
and without pigment spots.—J. H. BLake. 
Figs. 1, 2 from life; fig. 8 camera drawing, under cover glass. 
PUBLICATIONS RECEIVED. 
Descriptions oF NEw Spectres oF MoLiusca FROM THE NorTH 
PaciFic OCEAN IN THE COLLECTION OF THE UNITED STATES 
NationaL Museum. By William H. Dall (Proc. U.S. Nat. 
Mus., vol. 56, pp. 293-371, 1919). In this paper 222 new 
forms are described. The standing of the genus Neptunea Bol- 
ten, is discussed, the name restricted to the boreal Trophons and 
Sars’ Boreotrophon relegated to the synonymy. 
New SpeEcizs OF AMNICOLA FROM GUATEMALA. By Bryant 
Walker (Univ. Mich., Occasional Papers, Mus. Zool., No. 73, 
Sept. 30, 1919). Four new species are described and figured. 
They were collected by Mr. A. A. Hinkley. 
NotEs oN NortH AMERICAN NataDEs IJ. By Bryant Walker 
(Univ. Mich., Occasional Papers, Mus. Zool., No. 74, Sept. 
30, 1919). The Unio tenerus Ravenel, and the Lampsilis modio- 
liformis Lea, are both thoroughly reviewed and figured. 
