22 TREMATODES OF THE PACIFIC NORTHWEST 



The above siiionymy is after Cheng (1958). Rankm (1938) reduced all the 

 American species to synonymy with this species, but a restudy by Parker (1941) 

 and later by Cheng (1958) indicated that this probably was not correct. 



Hosts : Ensatina eschscholtzi Ore. Lehmann, 1954 



Taricha granulosa Ore. Lehmann, 1954 



For other host records see Harwood (1932), Byrd (1937a, 1937b), Cheng 

 (1958), Najarian (1955), and Stafford (1900) as well as the European authors 

 cited in the synonymy. 



Morphology: Redescribed and figured by Cheng (1958). Kemnitz (1913) 

 showed it to have 20 chromosomes. 



Biology: The life cycle is largely luiknown for this genus. See Timon-David 

 (1956, 1957). Cort (1915a) found a worm parasitized with the larvae of a 

 Gordius worm. 



Brachylecithum chivosca (Pratt and Cutress, 1949) Skrjabin & Evranova, 

 1952 



SynonjTns : Olssoniella chivosca Pratt & Cutress, 1949 



Lypersomum (Brachylecithum) chivosca (Pratt & Cutress, 1949) 

 Jaiswal, 1957 



Host: Hesperiophonia vespertina 



brooksi Ore. Pratt & Cutress, 1949 



Not known outside of the Pacific Northwest. 



Morphology: Redescribed and figured by Skrjabin and Evranova (1952). 



Brachylecithum idahoensis Schell, 1957 



Host: Falco sparverius Idaho Schell, 1957 



There are no other records. 



Brachylecithum mosquense (Skrjabin and Issaitchikov, 1927) 



Synonyms : Oszvaldoia mosquense S. and I., 1927 



Olssoniella mosquense (S. and I., 1927) Travassos, 1944 

 Lypersomum mosquense (S. and I., 1927) Skrjabin & Evranova, 1952 



Hosts : Turdus migratorius Idaho Schell, 1957 



Ixoreus naevis naevis Idaho Schell, 1957 



Turdus migratorius Ore. *Coos County 



Additional host records by Yamaguti, 1958; Skrjabin and Evranova, 1952. 



Morphology: Described and figured by Skrjabin and Evranova, 1952. For life 

 histories of other members of this genus see Denton (1945), Jolivet and 

 Theodorides (1950) and Mattes (1955). 



Concinnum burleighi Schell, 1957 



Host: Passerella iliaco Idaho Schell, 1957 



There are no other records. For life histories of other members of this 

 genus see Denton (1944), Patten (1952). 



Asterisks denote new (previously unpublished) reports of tlie parasite in the area. 



