Ward. — Fish Parasites and Parasitic Diseases 235 



Nickerson, W. S. — Continued. 



1902. Cotylogaster occidentalis n. sp. and a revision of the family 

 Aspidobothridas. Zoologische Jahrbiicher, Abt. Syst., bd. 

 xv, p. 597-624, 2 taf. 



Detailed description of parasite found in sheepshead in Minnesota. 

 Systematic outline of this family of flukes. 



Osborn, H. L. 



1902. Notes on the trematodes of Lake Chautauqua, N. Y. Science, 

 n. s., vol. xv, p. 573-574. 



Records Microphallus opacus (Ward) as frequent in black bass, and 

 its larva in crayfishes. Bunodera (sp.) occurs also in the black bass. 

 Two other undetermined flukes are found in rock bass, darters and 

 sunfish (cf. following titles for data regarding these parasites). 



1903a. Bunodera cornuta sp. nov., a new parasite from the crayfish 

 and certain fishes of Lake Chautauqua, N. Y. Biological 

 Bulletin, vol. v, p. 63-73, 7 fig. 



This parasite occurs in black bass, rock bass and bullheads at Chau- 

 tauqua Lake, and the young in crayfish there. The structure and life 

 history are described in detail and comparisons made with European 

 species that are closely allied parasites. 



1903b. On Cryptogonimus chyli, n. g., n. sp., a trematode from Lake 

 Chautauqua, N. Y., with novel type of ventral sucker. 

 Science, n. s., vol. xvn, p. 533-534. 



Brief description of the structure of a small fluke common in black 

 bass. 



1903c. On Cryptogonimus (n. g.) chili (n. sp.), a fluke with two 

 ventral suckers. Zoologischer Anzeiger, bd. xxvi, p. 315-318, 

 2 fig. 



Brief account of a new species of fluke found in black bass. 



1910. On the structure of Cryptogonimus (nov. gen.) chyli (n. sp.), 



an aberrant distome from fishes of Michigan and New York. 

 Journal of Experimental Zoology, vol. ix, p. 517-536. 



Extended account of the structure and relationships of this parasite 

 which occurs in stomach and intestines of black bass and rock bass. 

 It is found in the St. Mary's River and in Chautauqua Lake, also in 

 Canada (Stafford, 1905). 



1911. On the distribution and mode of occurrence in the United 



States and Canada of Clinostomum marginatum, a trema- 

 tode parasite in fish, frogs and birds. Biological Bulletin, 

 vol. xx, p. 350-366. 



Full discussion of encysted stages in black bass, perch, sunfish where 

 it occurs in muscle tissue. Adult stage in fish-eating birds. 



Pratt, H. S. 



1900. Synopsis of North American invertebrates. XII. — The trema- 

 todes, part 1, The Heterocotylea or monogenetic forms. 

 American Naturalist, vol. xxxiv, p. 645-662. 



Systematic topography; figures of each species. 



1902. Synopsis of North American invertebrates. XII. — Trema- 

 todes, part 2, The Aspidocotylea and the Malacotylea, or 

 digenetic forms. Ibid., vol. xxxvi, p. 887-910, 953-971, 

 130 fig. 



Systematic synopsis; key, description of all species, figures of most. 

 Bibliography. 



