Ascarophis filiformis Polyanski 1952

• Main Authors: Arai, Hisao P., Smith, John W.
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2016
• Subjects: Biodiversity; Taxonomy; Animalia; Nematoda; Secernentea; Spirurida; Spiruridae; Ascarophis; Ascarophis filiformis; Boreogadus saida; Gadus morhua; Nunavut
• Online Access: https://doi.org/10.5281/zenodo.5626774; http://treatment.plazi.org/id/038FB248FFE4FFEF89B9C00621B89CF0

Ascarophis filiformis Polyanski, 1952 Description (after Appy 1981). With characteristics of the genus. Males: 12.4 (9.0–14.7) long, 0.105 (0.077–0.130) wide at vas deferens . Muscular oesophagus 0.343 (0.260– 0.403) and glandular oesophagus 2.117 (1.445–2.864) long. Deirids, nerve ring and excretory pore 0.175 (0.140– 0.209), 0.219 (0.185–0.258) and 0.325 (0.264–0.367), respectively, from anterior end (Fig. 54 A). Tail 0.158 (0.125–0.189) long. Right spicule 0.109 (0.094–0.129) long, spicule arcuate, notched distally. Left spicule 0.328 (0.271–0.392) long, tubular, divided into proximal shaft and blade. Ratio of left to right 1:3.0 (1:2.5 to 1:3.5). Area rugosa with about 11 longitudinal rows of cuticular elevations. 10 pairs caudal papillae: two double pairs precloacal, six pairs post-cloacal; 5th post-cloacal pair relatively small, ventral to 6th pair. Caudal alae narrow. Phasmids behind last pair post-cloacal papillae (Fig. 54 B). Females: 25.1 (19.3–35.9) long, 0.160 (0.112–0.207) wide at vulva. Muscular oesophagus 0.386 (0.330–0.462) and glandular oesophagus 2.606 (1.845–3.424) long. Deirids, nerve ring, excretory pore and vulva 0.186 (0.143– 0.228), 0.228 (0.179–0.265), 0.340 (0.258–0.415) and 12.7 (9.5–18.3), respectively, from anterior end. Tail 0.090 (0.058–0.120) long (Fig. 54 C). Eggs 0.047 (0.042–0.050) x 0.031 (0.028–0.035) with two filaments arising from prominent knob at one pole (Fig. 54 D). [For comments on A. filiformis see page 90–91] Site: stomach Hosts: Boreogadus saida (9); Gadus morhua (1, 2, 3, 4); Hippoglossus stenolepis (7, 8); Liparis dennyi (5); Reinhardtius hippoglossoides (6) Distribution: Atlantic, Nunavut, Pacific Records: 1. Redkozubova 1976 (AT); 2. Linkletter et al. 1977 (AT); 3. Appy 1981 (AT); 4. Appy & Burt 1982 (AT); 5. Ko 1986 (PA); 6. Arthur & Albert 1994 (AT); 7. Blaycock 1996 (PA); 8. Blaycock et al. 1998a (PA); Køie 2009 (NU) Ascarophis morrhuae van Beneden, 1871 Description (after Ko 1986). With characteristics of the genus. Males: 5.9 (5.1–7.2) long, 0.028 ...