INTERNAL PARASITES OF THE SEBAGO SALMON. II 67 



proboscideus from Berlin in the Stiles collection and Bothriocephalus sp. from 

 England in the Hassall collection; no specimens whatever are noted as having 

 been taken from autochthonous fish. 



In a list of trematodes from Canadian fishes Stafford (1904) records from 

 Salmo salar Linnaeus, Derogenes various O. F. Miiller, found in mouth, oesoph- 

 agus, and stomach; Hemiurus appendiculatus Rudolphi, found in oesophagus and 

 stomach; Lecithaster bothryophorus Olsson { = Apoblema mollissimum Levinsen), 

 and Sinistroporus simplex Rudolphi, from the intestine. The fish were appar- 

 ently purchased in the markets in Montreal and represent conditions during 

 the spring and autumn months of 1903. 



I have found no further references to the parasitic fauna of Salmo salar on 

 this continent. The list contains two species not previously recorded for this 

 host, and yet it is insignificant in comparison with European records for the 

 same host. 



Appended hereto is a tabular list of all parasites hitherto reported from 

 Salmo salar, arranged according to the place which the parasites hold in the 

 present accepted system. The taxonomy of these groups is at present in such 

 confusion that I have contented myself with entering the names employed by 

 the author cited and in making a few inevitable corrections. Any attempt to 

 adjust the nomenclature adequately would demand an amount of time beyond 

 my present command and an amount of space out of keeping with the rest of 

 this article. By the citation in the table of the authority, date, locality, and 

 location, the reader is enabled to form at a glance a general opinion regarding 

 the importance of any parasite yet reported from the salmon and to follow up 

 its record with the minimum delay. 



