Capillaria (Procapillaria) margolisi Moravec

Arai, Hisao P. & Smith, John W., 2016, Guide to the Parasites of Fishes of Canada Part V: Nematoda, Zootaxa 4185 (1), pp. 1-274 : 23-25

Capillaria (Procapillaria) margolisi Moravec & McDonald, 1981

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

Males: Body length 13.57, maximum width 0.074. Muscular oesophagus 0.359 long, stichosome 8.94, 58 stichocytes. Nerve ring 0.161 from anterior end ( Fig. 18 A). Spicule well sclerotized with rough transverse grooves on middle third, 0.202 long ( Fig. 18 B). Cloaca opening subterminal. Tail rounded, 0.009 long, with a 0.023 long lobe on either side probably with submerged papillae ( Fig. 18 C). Pair of small sessile papillae just anterior to cloacal opening.

Females: Gravid worms 18.58 – 21.76 long, maximum width 0.093 – 0.112. Muscular oesophagus 0.359 – 0.382 long, stichosome 8.73–9.92, 44 to 51 stichocytes. Nerve ring 0.115–0.129 from anterior end. Vulva near level of oesophago-intestinal junction ( Fig. 18 D). Uterus with many eggs in one row near vulva, two or more rows distally. Mature eggs 0.062–0.069 x 0.025–0.028 ( Fig. 18 E). Ovary reaching posteriad to about mid-region of rectum. Rectum 0.081–0.110 long. Anus subterminal, tail 0.012–0.021 long.

Site: pyloric caeca

Hosts: Hippoglossus stenolepis (2, 3, 4); Scorpaenichthys marmoratus (1)

Distribution: Pacific

Records: 1. Moravec & McDonald 1981; 2. Blaycock 1996; 3. Blaycock et al. 1998a; 4. Blaycock et al. 1998b

Figures

FIGURE 18. Capillaria (Procapillaria) margolisi Moravec & McDonald, 1981. A. anterior end; B. male, posterior end, lateral view; C. male, tail, ventral view; D. vulvar region; E. mature egg. (Redrawn from Moravec 2001)