70 THE AMERICAN NATURALIST. [Vor. XXXVI. 
Lühe is nevertheless to be congratulated on having produced the 
first manual on the entire group, and in having made it a well- 
balanced and useful treatise. H. B. W 
Notes. — Under the name of Causeries Scientifigues, the Zoölogical 
Society of France began last year the publication of a series of lec- 
tures on various topics of scientific importance. Among the subjects 
treated thus far are “ Vibratile Cilia,” by P. Vignon; the “ Tecti- 
branch Mollusks,” by J. Guiart ; and “Coccidia and their Patho- 
genic Rôle,” by R. Blanchard. While the method of treatment 
shows all the advantages given by the freedom of a lecture and the 
articles are very readable, they are not lacking in scientific accuracy. 
Stiles and Hassall (Annual Report of the Bureau of Animal Indus- 
try for 1899) have described carefully the mammalian lung fluke 
recorded previously from dog and cat in the United States and 
believed to be identical with the Asiatic lung fluke of man. The 
parasite is reported as frequent in the lungs of hogs slaughtered in 
Cincinnati, and the authors are inclined to regard it as identical 
with the Asiatic form, and hence as a real menace to the health 
of man in this country as it is in Asia. 
Braun has added to his previous studies on the trematodes two 
further articles. The first, on the trematodes of the chelonians 
(Mittheil. Zool. Mus. Berlin, Bd. II, 1901), deals with twenty-two 
species in detail, the large majority of which are new or poorly 
known forms. The second paper, on the trematodes of mammals 
(Zool. Jahrb., Syst., Bd. XIV, 1901), discusses thirteen forms, chiefly 
also from the Berlin collection. Noteworthy is the demonstration of 
the specific difference between Ofisthorchis tenuicollis Rud. and 
O. felineus Riv., which have recently been thrown together by a 
number of authors. The careful comparisons between related spe- 
cies instituted by Braun in these studies furnish the only hope for 
the clearing up of this much-confused territory. 
Among the parasites from Lake Nyassa recently described by von | 
Linstow (Jenaische Zeitschr., Bd. LIII, p. 408), Ziznia africana n. sp., 
from man, and Moniezia amphibia n. sp., from the | PIppopotamus, are 
noteworthy. 
The embryonic development of Anoplocephala has been worked 
out in detail by Saint Remy (Arch. Parasitol., Vol. ITI, p. mica who 
has observed for the first time in this group the formation of polar 
corpuscles, — 
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