Cystidicola stigmatura (Leidy, 1886) Ward & Magath 1917

• Main Authors: Arai, Hisao P., Smith, John W.
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2016
• Subjects: Biodiversity; Taxonomy; Animalia; Nematoda; Chromadorea; Spirurida; Cystidicolidae; Cystidicola; Cystidicola stigmatura; Oncorhynchus gorbuscha; Salvelinus alpinus
• Online Access: https://doi.org/10.5281/zenodo.5626798; http://treatment.plazi.org/id/038FB248FFD1FFD489B9C11021CC9AD0

Cystidicola stigmatura (Leidy, 1886) Ward & Magath, 1917 Synonym: Cystidicola cristivomeri White, 1941 Description (after White & Cable 1942, Ko & Anderson 1969, and Miscampbell et al . 2004). With characteristics of the genus. Males: body 23 (17–31) long. Width at nerve ring 0.126 (0.101–0.144), at anus 0.125 (0.103–0.155). Buccal cavity 0.148 (0.124–0.174) long (Fig. 60 A). Nerve ring 0.399 (0.371–0.443) from anterior end [position of excretory pore not given]. Muscular oesophagus 0.527 (0.433–0.597) and glandular oesophagus 3.110 (2.370– 3.970) long. Cuticular bosses present on ventro-lateral surface of caudal alae. Spicules unequal: left one 0.900 (0.760–1.150), right one 0.200 (0.170–0.250) long. Seven to nine double pairs of pre-cloacal papillae present, the last pair sometimes single. Four pairs of post-cloacal papillae present, the 1st and 3rd single pairs, the 2nd and 4th double pairs. Phasmids 0.033 (0.025–0.037) from posterior end. Tail 0.244 (0.200–0.278) long (Fig. 60 B). Females: body 28 (19–37) long. Width at nerve ring 0.142 (0.124–0.155), at anus 0.131 (0.113–0.151). Buccal cavity 0.149 (0.134–0.165) long. Nerve ring 0.405 (0.371–0.433) and excretory pore 0.608 (0.525–0.690) from anterior end. Muscular oesophagus 0.524 (0.474–0.567) and glandular oesophagus 3.070 (2.630–3.310) long. Uterus amphidelphic, didelphic. Vulva slightly posterior to middle of body, 16 (10–21) from anterior end. Phasmids 0.036 (0.034–0.037) from posterior end. Tail 0.212 (0.175–0.265) long. Fully developed eggs 0.045 (0.042–0.049) x 0.025 (0.023–0.026), bearing lateral “lobes” (“floats” or “mammillations” in litt .) (Fig. 60 C). Site: swim bladder Hosts: Coregonus artedi * (10, 14, 15, 19); Coregonus clupeaformis * (1, 6, 9, 10, 12, 14, 15, 16, 19, 24, 41); Coregonus hoyi *(10); Myoxocephalus thompsonii (29); Oncorhynchus gorbuscha (42); Oncorhynchus kisutch (17, 19); Oncorhynchus nerka (16); Osmerus mordax (16); Prosopium cylindraceum (10); Salvelinus alpinus (18, 20, 22, 23, 28, 30, 33, 34, 36, 37, 38, 39, ...