2 TREMATODES OF THE PACIFIC NORTHWEST 



The literature for the trematodes of the Pacific Northwest is centered 

 around a few individuals and laboratories. From British Columbia the major 

 contributions have come from the Laboratory of the Fisheries Research Board 

 of Canada at Nanaimo and the University of British Columbia. McFarlane 

 and later Margolis have made major contributions from the former research 

 center, and Cowan and Adams and their students from the latter. From Wash- 

 ington the major contributions have come from the University of Wash- 

 ington and its Friday Harbor laboratories, from Guberlet and his students, 

 and from Lynch. In Idaho the work has come from the University of Idaho 

 under the leadership of Schell. From Oregon, work has been centered in 

 Portland and Corvallis. In Portland Macy and his students have made con- 

 tributions from Reed College, and later from Portland State College. From 

 Corvallis at Oregon State University the earlier reports came from the De- 

 partment of Veterinary Medicine under the leadership of Simms and later 

 Shaw, and the more recent reports have come from the Zoology Department 

 from Pratt, his students, and associates. 



In compiling this catalog a number of general references were used to 

 establish synonymies, ranges, life histories, and general biology. Among 

 these are the recent works of Yamaguti (1958), Skrjabin (1947-1958), 

 Manter (1947, 1954), Dawes (1946, 1947), Winter (1955), and Sproston 

 (1946). In general the synonymies in these works have been accepted unless 

 there was general disagreement. 



Additional papers on the trematodes of the Northwest are scattered in 

 many journals and are cited in the body of the text where they are pertinent. 

 A few papers are not cited in the body of the text, but are included in the 

 bibliography. These include the papers of Davis (1957) and Deforest (1958) 

 who reported the incidence of trematode infection in the snails of Eastern 

 Washington, and the paper of Jarcho and Burkalow (1952) which surveys 

 schistosome dermatitis. None of these papers mentions the species of trema- 

 tode involved. 



The general plan of this monograph is to include a complete list of the 

 monogenetic and digenetic trematodes of the area, arranged alphabetically by 

 families. Lender each species is included its synon3^my; a complete list of 

 Pacific Northwest host records, as v/ell as an indication of other areas in 

 which the trematode is found; comments about the taxonomy, if there is a 

 disagreement, or if other problems appear to need clarification; citations of 

 descriptions other than the original to which the reader might look for ad- 

 ditional information, and figures to which he might refer if the original 

 description was not readily available; and finally comments on the general 

 biology, life history, distribution, or other facts which are known. 



A taxonomically arranged list of hosts and their naturally occurring para- 

 sites is also included. Synonyms of hosts are given if parasites have been 

 reported from them by obsolete names. The names of hosts have been taken 

 from several sources. Fish names have been taken from Clemens and Wilby 

 (1949) and Carl, Clemens, and Lindsey (1959). Professor R. E. Dimmick 



