Salvelinema salmonicola (Ishii, 1916) Margolis, 1966

Arai, Hisao P. & Smith, John W., 2016, Guide to the Parasites of Fishes of Canada Part V: Nematoda, Zootaxa 4185 (1), pp. 1-274 : 105

publication ID

https://doi.org/ 10.11646/zootaxa.4185.1.1

publication LSID

lsid:zoobank.org:pub:0D054EDD-9CDC-4D16-A8B2-F1EBBDAD6E09

DOI

https://doi.org/10.5281/zenodo.5626818

persistent identifier

https://treatment.plazi.org/id/038FB248-FFD9-FFDE-89B9-C68B23979A7A

treatment provided by

Plazi

scientific name

Salvelinema salmonicola (Ishii, 1916) Margolis, 1966
status

 

Salvelinema salmonicola (Ishii, 1916) Margolis, 1966

Synonym: Cystidicola salmonicola Ishii, 1916

Description (after Moravec & Nagasawa 1999b). With characteristics of the genus.

Males (from Oncorhynchus mykiss ): 15.66–18.99 long, 0.288–0.474 maximum width. Vestibule including prostom 0.116–0.144, muscular oesophagus 0.444–0.487, and glandular oesophagus 1.440–1.820 long. Deirids, nerve ring and excretory pore 0.278–0.320, 0.365–0.426 and 0.609–0.705, respectively, from anterior end. Caudal alae and ventral pre-cloacal cuticular ridges well developed. Pre-cloacal papillae: 19 to 21 pairs of subventral papillae, mostly arranged in couples. Post-cloacal papillae; six pairs of single papillae (occasionally seven papillae on right side and six on left). Left spicule slender 0.960–1.050 long, proximal end broader, distal end sharply pointed. Right spicule short, boat-shaped, 0.128–0.160 long, proximal end blunt, distal end rounded. Tail 0.224– 0.264 long ( Fig. 63 View FIGURE 63 B).

Females (from O. mykiss ): gravid worms 20.830–27.910 long, 0.577–0.824 maximum width. Vestibule including prostom 0.120–0.160 ( Fig. 63 View FIGURE 63 A), muscular oesophagus 0.539–0.566, and glandular oesophagus 1.700– 2.130 long. Deirids, nerve ring and excretory pore 0.344–0.348, 0.409–0.522 and 0.679–0.722, respectively, from anterior end. Tail slender, 0.409–0.487 long with distal tip separated by cuticular constriction to form knob-like appendage ( Fig. 63 View FIGURE 63 C). Vulva near midbody, 48–54% of body length. Vagina directed anteriorly from vulva. Uterus amphidelphic, ovaries in anterior and posterior parts of body. Mature eggs oval, thick walled, larvated, 42–50 µm x 18–20 µm; each pole with small plug and two thread-like filaments about 140 µm long ( Fig. 63 View FIGURE 63 D); exceptionally there may be three filaments at one pole.

Site: swim bladder

Hosts: Oncorhynchus kisutch (1); Salvelinus malma (2, 3)

Distribution: British Columbia

Records: 1. Margolis 1966; 2. Margolis 1967a; 3. Margolis & Kabata 1967

Kingdom

Animalia

Phylum

Nematoda

Class

Chromadorea

Order

Spirurida

InfraOrder

Oxyuridomorpha

SuperFamily

Spiruroidea

Family

Cystidicolidae

Genus

Salvelinema

Kingdom

Animalia

Phylum

Nematoda

Class

Chromadorea

Order

Spirurida

InfraOrder

Oxyuridomorpha

SuperFamily

Spiruroidea

Family

Cystidicolidae

Genus

Cystidicola

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