Cystidicola farionis Fischer 1798

• Main Authors: Arai, Hisao P., Smith, John W.
• Format: Other/Unknown Material
• Language: unknown
• Published: 2016
• Subjects: Biodiversity; Taxonomy; Animalia; Nematoda; Chromadorea; Spirurida; Cystidicolidae; Cystidicola; Cystidicola farionis; Catostomus catostomus
• Online Access: https://zenodo.org/record/5626792; https://doi.org/10.5281/zenodo.5626792

Cystidicola farionis Fischer, 1798 Synonyms: Cystidicola stigmatura (Leidy, 1886) Ward & Magath, 1917 (partim); Cystidicola canadensis Skinker, 1930 Description (after Ko & Anderson 1969, and Miscampbell et al. 2004). With characteristics of the genus. Males: body 16 (14–19) long. Width at nerve ring 0.117 (0.103–0.134), at anus 0.102 (0.104–0.134). Buccal cavity 0.122 (0.113–0.133) long (Fig. 59 B). Nerve ring 0.315 (0.278–0.319) and excretory pore 0.512 (0.474– 0.577) from anterior end. Muscular oesophagus 0.463 (0.402–0.608) long [length of glandular oesophagus not given]. Cuticular bosses present on ventro-lateral surface of caudal alae. Spicules unequal: left one 0.690 (0.640– 0.730), right one 0.133 (0.103–0.148) long (Fig. 59 C). Seven to nine double pairs of pre-cloacal papillae present. Four pairs of post-cloacal papillae present, the 1st and 3rd single pairs, the 2nd and 4th double pairs. Phasmids 0.025 (0.016–0.035) from posterior end. Tail 0.196 (0.155–0.227) long (Fig. 59 C). Females: body 18 (15–21) long. Width at nerve ring 0.126 (0.124–0.134), at anus 0.100 (0.078–0.113). Buccal cavity 0.128 (0.113–0.134) long. Nerve ring 0.305 (0.278–0.330) and excretory pore 0.462 (0.412–0.515) from anterior end. Muscular oesophagus 0.443 (0.412–0.474) and glandular oesophagus 1.100 (0.958–1.185) long. Uterus amphidelphic, didelphic. Vulva slightly posterior to mid-body length, 11 (8–13) from anterior end. Phasmids 0.035 (0.034–0.037) from posterior end. Tail 0.130 (0.103–0.156) long. Fully developed eggs 0.042 (0.039–0.044) x 0.021 (0.021–0.023), bearing lateral and/or polar filaments (Fig. 59 D). Sites: body cavity, mesenteries, stomach, swim bladder Hosts: Apeltes quadracus (9); Catostomus catostomus (10); Coregonus artedi (3, 4, 5, 17, 19, 30, 31, 35); Coregonus clupeaformis (4, 5, 10, 11, 15, 16, 17, 19, 20, 22, 23, 24, 25, 28, 29, 30, 31, 32, 35); Coregonus hoyi (3, 17, 31); Coregonus nasus (34); Coregonus nigripinnis (17); Coregonus reighardi (3); Coregonus sp. (8); Esox americanus americanus ...