Ward. — Fish Parasites and Parasitic Diseases 229 



Benedict, H. M. 



1900. ( hi the structure of two fish tapeworms from the genus Pro- 

 teocephalus, Weinland 1858. Journal of Morphology, vol. 

 xvi, p. 337 -M,8, 1 pi. 



Detailed study of Proteocephalus ambloplitis (Leidy) from black bass 

 and P. occllatus (Rud) from whitefish. The material was taken from 

 a collection made at Lake St. Clair (cf. Ward, 1894c). The species 

 studied were recently determined by La Rue (191 1) as Proteocephalus 

 exiguus n. sp. and P. ambloplitis (Leidy). 



Calkins, G. N. 



1899. Report upon the recent epidemic among brook trout. Fourth 

 Report New York Forest, Fish and Game Commission, 

 p. 175-190. 



The epidemic, equally fatal to 1 r — 1 1 of all ages, is characterized by 

 deep ulcer-. It is caused by a sporozoan parasite, Lymphosporidium 

 truttae, which is fully described in it- various stages. Every fish at this 

 trout farm succumbed to this disease. 



1900a. Lymphosporidium truttae, nov. gen. nov. spec, the cause of a 

 recent brook trout epidemic. Science, n. s., vol. xn, no. 300, 

 p. 64-65. 



Summary of report on epidemic, giving also main facts in structure 

 and life history of causal organism. 



1900b. Lymphosporidium truttae, nov. gen. nov. sp., the cause of a 

 recent epidemic among brook trout, Salvelinus fontinalis. 

 Zoologiscber Anzeiger, bd. xxm, p. 513-520, 6 fig. 



Extended account of the parasite and of the epidemic. The stages 

 in the life history of tin organism are described carefully and the pos- 

 sible relationship to other groups of Sporozoa discussed. Since the 

 organism was not discovered until the fish had perished, both the origin 

 of the disease and the remedy remain undetermined. 



1900c. Lymphosporidium truttae, nov. gen. nov. sp., the cause of a 

 recent epidemic among brook trout. Proceedings American 

 Association for the Advancement of Science, 49th meeting, 

 p. 238-239. 



Brief extract. 



( !on xi'K, Charles H. 



1905. Glochidia of Unio on fishes. Nautilus, vol. xvin, p. 142-143. 

 On anal and caudal fins of sunfish. 



Dana, J. I)., and Herrick, E. C. 



1837. Description of the Argulus Catastomi, a new parasitic crus 

 taceous animal (with figures). American Journal of 

 Science, vol. xxxi, p. 297-308. 



Found on operculum within the branchial chamber of the sucker in 

 Mill River. 



Dunning, Philo, and others. 



1884. Two hundred tons of dead fish, mostly perch, at Lake Men- 

 dota, Wisconsin. Bulletin U. S. Fish Commission, vol. iv. 

 1884, p. 439-443. 



Theory that the epidemic was due to a parasite (leech?) eaten by the 

 perch. Another view that the cause is a parasite feeding upon the gills. 

 [Neither of these views was substantiated by later investigations; see 

 Forbes, 1890.] 



Ec.GELING, O., AM' EhRENBERG, Fr. 



1908. The fresh-water aquarium and its inhabitants. 352 p., illus. 

 New York. 



Discusses briefly many forms of animal parasites found on fishes. 

 Notes their rapid increase and hence more serious character in the 

 narrow limits of the aquarium. 



