Pseudocapillaria (Ichthyocapillaria) salvelini (Polyanski, 1952) Moravec, 1982

Arai, Hisao P. & Smith, John W., 2016, Guide to the Parasites of Fishes of Canada Part V: Nematoda, Zootaxa 4185 (1), pp. 1-274 : 32

Pseudocapillaria (Ichthyocapillaria) salvelini (Polyanski, 1952) Moravec, 1982

Synonym: Capillaria salvelini Polyanski, 1952

Description (after Moravec 2001). With characteristics of the genus.

Males: Body length 6.17–9.11, maximum width 0.060–0.84. Muscular oesophagus 0.285–0.330, 26–35

stichocytes. Nerve ring 0.087–0.099 from anterior end. Spicule smooth, well sclerotized, 0.405–0.636 long, 0.009–

0.012 wide. Tail 0.018–0.027 long, rounded, with caudal bursa ( Fig. 23 B).

Females: Gravid worms 7.15–13.46 long, maximum width 0.054–0.095. Muscular oesophagus 0.300–0.393

long. Nerve ring 0.095–0.102 from anterior extremity. Vulva 0.030–0.081 behind oesophago-intestinal junction.

Eggs in one row near vulva ( Fig. 23 C), several rows distally. Mature eggs 0.060–0.075 x 0.027–0.030, polar plugs

non–protruding ( Fig. 23 D). Anus subterminal. Tail 0.009–0.015 long.

Site: alimentary tract

Hosts: Coregonus clupeaformis (5, 12, 22); Cottus asper (14); Oncorhynchus kisutch (11, 14, 16, 17, 18, 21); Oncorhynchus mykiss (22); Osmerus mordax (6, 14); Prosopium cylindraceum (5, 11, 22); Salmo salar (2, 6, 7, 8, 9 10, 14, 15, 17, 24, 25); Salvelinus alpinus (5, 23); Salvelinus fontinalis (3, 4, 5, 6, 12, 19, 20, 24); Salvelinus fontinalis x Salvelinus namaycush (13); Salvelinus malma (18); Salvelinus namaycush (5, 11, 12, 14, 17); Thymallus arcticus (11)

Distribution: British Columbia, Labrador, New Brunswick, Newfoundland, Northwest Territories, Nova Scotia, Ontario, Quebec, Yukon Territory

Records: 1. Pippy 1967 (NB, NL); 2. Pippy 1969 (NL, NB, NS); 3. Threlfall & Hanek 1969 (NF); 4. Threlfall & Hanek 1970c (NF); 5. Hicks & Threlfall 1973 (LB); 6. Hanek & Molnar 1974 (QC); 7. Hare & Burt 1975a (NB); 8. Hare & Burt 1975b (NB); 9. Hare 1975 (NB); 10. Hare & Burt 1976 (NB); 11. Arthur et al. 1976 (YT); 12. Chinniah & Threlfall 1978 (LB); 13. Dechtiar & Berst 1978 (ON); 14. Moravec 1980 (BC, NF, ON, YT); 15. Pippy 1980 (NB, NL, NT); 16. Anon. 1981 (BC); 17. Bell & Beverley-Burton 1981 (BC, NB, NT); 18. Anon. 1984 (BC); 19. Frimeth 1987a (NB); 20. Frimeth 1987b (NB); 21. Dechtiar & Christie 1988 (ON); 22. Dechtiar & Lawrie 1988 (ON); 23. Bouillon & Dempson 1989 (LB); 24. Marcogliese & Cone 1991a (LB, NB, NL, QC); 25. Marcogliese & Cone 1991b (NF)

Figures

FIGURE 23. Pseudocapillaria (Ichthyocapillaria) salvelini (Polyanski, 1952) Moravec, 1982. A. stichosome region with marked bacillary band; B. male, tail, ventral view; C. female, vulvar region; D. egg. (Redrawn from Moravec 2001)