960 The American Naturalist. [November, 
4. Myzomymus scutatus (Müller) Stiles, 1892. (Jour. Comp. Med. 
and Vet. Archiv., pp. 65-67, Fig. 1). In this article, which is a pre- 
liminary note on a species originally placed by Miiller in another 
genus, the author describes a very common parasite infesting the œso- 
phagus of American cattle. In No. 12 a complete description with 
figures is given. 
5. A word in regard to the Filaride found in the body envii on 
horses and cattle. (Joùr. of Comp. Med. and Vet. Archiv., 1892, pp. 
143-146, Fig. 1). The author gives new diagnosis for the two spe- 
cies; describes four new sense papillæ on the head and a fifth pair of 
post-anal papillæ in F. cervina; introduces the term ad-anal to denote 
the fourth pair of pre-anal papillæ in this species of other authors; 
shows that the dorsal and ventral oral spines in the female of F. cer- 
vina are distinctly paired, while in the male of Cervina the pairing is 
indistinct; in both male and female of F. equina they are generally 
single, although occasionally a slight pairing was noticed. 
On the presence of Strongylus ostertagi (Ostertag, 1890) Stiles, 
1892, in America (Jour. Comp. Med. and Vet. Archiv., 1892, pp. 147- 
148). The author mentions that the parasite, found in the rumen of 
cattle and sheep and known by German authors under the name of 
Strongylus convolutus, is found in this country. The specific name 
being preoccupied in the genus Strongylus Stiles, changes the name to 
ertagi. 
7. A word in regard to Dr. Francis’ Distomum texanicum (Am. Vet. 
Rev., 1892, pp. 732-733). The author states that Distomum teranicum 
is identical with Fasciola carnosa seu F. Americana Hassall, ’91, and 
probably identical with D. magnum Bassi, 1875. 
8. A check list of the animal parasites of cattle Gow. of Comp. 
Med. and Vet. Archiv., 1892, pp. 346-350). The author gives a list 
of parasites found up to date in cattle. 
9. Two cases of Echinococcus multilocularis in cattle (Jour. Comp. 
Med. and Vet. Archiv., 1892, p. 350). The first case of Echinococcus 
multilocularis in this country in cattle is here recorded. 
10. A case of intestinal coccidiosis in sheep (The Jour. of Comp. 
Med. and Vet. Archiv., 1892, pp. 319-328, Figs. 1-14). The author 
describes and figures a case of Coccidium perforans in sheep found by 
Dr. Cooper Curtice. He discusses at length the new nomenclature of 
Sporozoa used by Wolters and Pfeiffer, and comes: to the conclusion 
that it is not only very inappropriate but illogical and unzoological. 
He compares in a tabulated form the various stages of development 
with the corresponding stages of lower plants. The last column of 
