Capillaria (Capillaroides) catenata Van Cleave & Mueller, 1932

Synonym: Capillaria (Thominx) catenata Van Cleave & Mueller, 1932

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

Males: 7.70–9.04 long, 0.068 maximum width. Entire oesophagus 5.90–6.48 long, 40 stichocytes. Spicule apparently weakly sclerotized, 0.399–0.465 long, covered with transverse grooves except at extremities (Fig. 20 A). Posterior end rounded, somewhat inflated both sides, with two large ventro-lateral papillae. Cloacal opening subterminal, tail 0.018 long.

Females: Gravid worms 10.98–12.27 long, maximum width 0.068–0.095. Muscular oesophagus 0.210–0.300 long, stichosome 5.60–6.29 long, 40–44 stichocytes. Nerve ring 0.063–0.096 from anterior end. Vulva 0.009–0.090 behind oesophago-intestinal junction, its lips not elevated. Vulvar appendage absent (Fig. 20 B). Relatively few eggs (ca 10) in uterus, in one row. Eggs 0.057–0.060 x 0.030–0.039 (possibly expanded by coverslip pressure). Site: intestine

Hosts: Ambloplites rupestris (2); Catostomus commersoni (1); Oncorhynchus nerka (3, 4); Osmerus mordax (3, 4) Distribution: Ontario, Quebec

Records: 1. Fantham & Porter 1948 (QC); 2. Dechtiar 1972a (ON); 3. Collins & Dechtiar 1974 (ON); 4. Dechtiar et

al. 1988 (ON)