Ascarophis arctica Polyanski 1952

• Main Authors: Arai, Hisao P., Smith, John W.
• Format: Text
• Language: unknown
• Published: Zenodo 2016
• Subjects: Biodiversity; Taxonomy; Animalia; Nematoda; Secernentea; Spirurida; Spiruridae; Ascarophis; Ascarophis arctica; Canada; Greenland; Rugosa; Beneden; Van Beneden; Gadus morhua; North Atlantic; Northwest Atlantic
• Online Access: https://dx.doi.org/10.5281/zenodo.5626770; https://zenodo.org/record/5626770

Ascarophis arctica Polyanski, 1952 Description (after Appy 1981). With characteristics of the genus. Males: 6.6 (5.7–7.9) long, 0.089 (0.062–0.105) wide at vas deferens . Muscular oesophagus 0.274 (0.233– 0.325) and glandular oesophagus 1.650 (1.325–2.045) long. Deirids, nerve ring and excretory pore 0.132 (0.110– 0.151), 0.179 (0.155–0.202) and 0.267 (0.232–0.338), respectively, from anterior end (Fig. 52 A). Tail 0.151 (0.129–0.182) long. Right spicule 0.100 (0.085–0.111) long, spicule arcuate, notched distally. Left spicule 0.808 (0.585–0.882) long, tubular, divided into proximal shaft and blade. Ratio of left to right 1:8.1 (1:5.9 to 1:10.4). Area rugosa with about 14 longitudinal rows of cuticular elevations. Ten pairs caudal papillae: two double pairs pre-cloacal, six pairs post-cloacal; 5th post-cloacal pair relatively small, ventral to 6th pair. Caudal alae narrow. Phasmids immediately behind last pair post-cloacal papillae (Fig. 52 B). Females: 13.3 (10.5–15.4) long, 0.124 (0.092–0.157) wide at vulva. Muscular oesophagus 0.321 (0.235–0.414) and glandular oesophagus 1.928 (1.474–2.554) long. Deirids, nerve ring, excretory pore and vulva 0.147 (0.131– 0.166), 0.194 (0.172–0.221), 0.295 (0.269–0.338) and 7.0 (5.5–8.3), respectively, from anterior end (Fig. 52 C). [NB: to avoid clutter in Figure 52 C the in utero eggs have been drawn as if they lack polar filaments.] Tail 0.052 (0.034–0.071) long. Eggs 0.045 (0.043–0.048) x 0.024 (0.022–0.027) with filaments at both poles (Fig. 52 D). [For comments on A. arctica see page 90–91] Sites: alimentary tract, stomach Hosts: Gadus morhua (1, 3); Hemitripterus americanus (1); Hippoglossoides platessoides (5); Melanogrammus aeglefinus (1, 2, 4); Merluccius bilinearis (1); Microgadus tomcod (1); Osmerus mordax (1); Pholis gunnellus (1); Pseudopleuronectes americanus (1, 7); Reinhardtius hippoglossoides (6); Urophycis tenuis (1); Zoarces americanus (1) Distribution: Atlantic Records: 1. Appy 1981; 2. Scott 1981; 3. Appy & Burt 1982; 4. Scott 1982; 5. Zubchenko 1985a; 6. Arthur & Albert 1994; 7. McClelland et al. 2005 : Published as part of Arai, Hisao P. & Smith, John W., 2016, Guide to the Parasites of Fishes of Canada Part V: Nematoda, pp. 1-274 in Zootaxa 4185 (1) on pages 84-86, DOI: 10.11646/zootaxa.4185.1.1, http://zenodo.org/record/165530 : {"references": ["Appy, R. G. (1981) Species of Ascarophis van Beneden, 1870 (Nematoda: Cystidicolidae) in North Atlantic fishes. Canadian Journal of Zoology, 59, 2193 - 2205. http: // dx. doi. org / 10.1139 / z 81 - 297", "Scott, J. S. (1981) Alimentary tract parasites of haddock (Melanogrammus aeglefinus L.) on the Scotian Shelf. Canadian Journal of Zoology, 59, 2244 - 2252. http: // dx. doi. org / 10.1139 / z 81 - 304", "Appy, R. G. & Burt, M. D. B. (1982) Metazoan parasites of cod, Gadus morhua L., in Canadian Atlantic waters. Canadian Journal of Zoology, 60, 1573 - 1579. http: // dx. doi. org / 10.1139 / z 82 - 207", "Scott, J. S. (1982) Erratum: Alimentary tract parasites of haddock (Melanogrammus aeglefinus L.) on the Scotian Shelf. Canadian Journal of Zoology, 60, 1779. http: // dx. doi. org / 10.1139 / z 82 - 230", "Zubchenko, A. V. (1985 a) Parasite fauna of American plaice (Hippoglossoides platessoides) from the northwest Atlantic. Journal of Northwest Atlantic Fisheries Science, 6, 165 - 171. http: // dx. doi. org / 10.2960 / j. v 6. a 17", "Arthur, J. R. & Albert, E. (1994) A survey of the parasites of Greenland halibut (Reinhardtius hippoglossoides) caught off Atlantic Canada, with notes on their zoogeography in this fish. Canadian Journal of Zoology, 72, 756 - 778. http: // dx. doi. org / 10.1139 / z 94 - 103"]}