Salmonema prevosti (Choquette, 1951) Moravec, Santos & Brasil-Sato, 2008

Arai, Hisao P. & Smith, John W., 2016, Guide to the Parasites of Fishes of Canada Part V: Nematoda, Zootaxa 4185 (1), pp. 1-274 : 102

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.5626810

persistent identifier

https://treatment.plazi.org/id/038FB248-FFD4-FFD3-89B9-C53321FD9872

treatment provided by

Plazi

scientific name

Salmonema prevosti (Choquette, 1951) Moravec, Santos & Brasil-Sato, 2008
status

 

Salmonema prevosti (Choquette, 1951) Moravec, Santos & Brasil-Sato, 2008

Synonym: Metabronema prevosti Choquette, 1951

Description (after Choquette 1951b). With characteristics of the genus. Slender worms, the greatest width near posterior end, cuticle with transverse striations. Mouth opening dorso-ventrally elongated, surrounded by two slightly trilobed pseudolabia, leading to vestibule. Four large cephalic papillae at base of pseudolabia ( Fig. 62 View FIGURE 62 A). Oesophagus comprises a muscular and a longer glandular portion.

Males (two specimens in “rather poor condition” were available—most measurements are for the type specimen only): 7.0 and 10.0 long. Vestibule 0.12, muscular oesophagus 0.38, and glandular oesophagus 2.91 long. Nerve ring 0.19 and excretory pore 0.30 from anterior end. Posterior end coiled with well developed caudal alae supported by four pairs pre-cloacal and five pairs post-cloacal papillae ( Fig. 62 View FIGURE 62 B). Spicules unequal: left ones 0.8 and 1.2, and right ones 0.08 and 0.12. Gubernaculum not seen.

Females (14 specimens were available): 9.4 to 13.2 long. Vestibule 0.10 to 0.16, muscular oesophagus 0.22 to 0.39, and glandular oesophagus 1.67 to 2.35 long. Nerve ring 0.14 to 0.20, and excretory pore 0.22 to 0.25 from anterior end. Vulva situated slightly posterior to mid body. Eggs embryonated, 0.048 to 0.051 x 0.025, bear “coarse filaments at either poles which are provided with knobs”.

Site: intestinal lumen

Host: Ameiurus nebulosus

Distribution: Quebec

Record: Choquette 1951b

Kingdom

Animalia

Phylum

Nematoda

Class

Chromadorea

Order

Spirurida

Family

Cystidicolidae

Genus

Salmonema

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