Contracaecum rudolphii Hartwich, 1964

Arai, Hisao P. & Smith, John W., 2016, Guide to the Parasites of Fishes of Canada Part V: Nematoda, Zootaxa 4185 (1), pp. 1-274 : 130-131

* Contracaecum rudolphii Hartwich, 1964

Synonym: Contracaecum spiculigerum auct . nec Rudolphi, 1809

Description (after Bartlett 1996, and Moravec 2013). Ten 87-day-old L3 from experimentally infected guppies Poecilia reticulata were 0.8–2.9 long, and 0.030–0.090 maximum width. Five 152-day-old L3 were 3.1–3.9 (mean 3.5) long, and 0.110–0.120 (0.114) maximum width. Older larvae were 15.0–24.0 long, and 0.9–2.1 wide. Mouth, lips, boring tooth, and excretory pore similar to those of Anisakis simplex L3 (see Fig. 76 A,B,C). Nerve ring 0.150– 0.200 (0.167) from anterior end. Length of preventriculus 0.370–0.415 (0.391), ventriculus 0.025–0.030 (0.029), ventricular appendix 0.320–0.380 (0.359), intestinal caecum 0.170–0.225 (0.191) [ Fig. 76 A], and tail 0.085–0.090 (0.088) [ Fig. 76 B].

Sites: body cavity, intestinal lumen, musculature

Hosts: Fundulus heteroclitus ; Poecilia reticulata (EX)

Distribution: Nova Scotia

Record: Bartlett 1996

Figures

FIGURE 76. * Contracaecum rudolphii Hartwich, 1964. A. L 3, anterior end, lateral view; B. L 3, posterior end, lateral view. (Redrawn from Bartlett 1996)