Ascarophis filiformis Polyanski 1952

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...

Full description

Bibliographic Details
Main Authors: Arai, Hisao P., Smith, John W.
Format: Other/Unknown Material
Language:unknown
Published: 2016
Subjects:
Biodiversity
Taxonomy
Animalia
Nematoda
Secernentea
Spirurida
Spiruridae
Ascarophis
Ascarophis filiformis
Beneden
Nunavut
Pacific
Rugosa
Van Beneden
Boreogadus saida
Gadus morhua
Online Access:https://zenodo.org/record/5626774
https://doi.org/10.5281/zenodo.5626774
Description
Summary: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 ...

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