Raphidascaris Railliet & Henry, 1915

Arai, Hisao P. & Smith, John W., 2016, Guide to the Parasites of Fishes of Canada Part V: Nematoda, Zootaxa 4185 (1), pp. 1-274 : 146

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.5626942

persistent identifier

https://treatment.plazi.org/id/038FB248-FF20-FF27-89B9-C572216F9B37

treatment provided by

Plazi

scientific name

Raphidascaris Railliet & Henry, 1915
status

 

Raphidascaris Railliet & Henry, 1915 View in CoL

Synonyms: Hysterothylacium Ward & Magath, 1917 ; Ichthyascaris Wu, 1949 ;? Neogoezia Kreis, 1937

Preamble: Raphidascaris acus is the only species of the genus known from Canadian fishes. The life cycle of R. acus was discussed by J. D. Smith (1984b) and Moravec (2013) and involves predatory fishes as final hosts, and various invertebrates and fishes as paratenic or intermediate hosts. Adult and larval stages of R. acus are described below.

Generic diagnosis (after Moravec 2013). Raphidascaridinae . Large nematodes, widest in midbody. Cuticle with distinct striations. Lips well developed, of complex structure. Interlabia rudimentary or absent. Excretory pore slightly behind nerve ring level. Narrow lateral alae may be present. Preventriculus muscular; ventriculus almost spherical; posteriorly directed ventricular appendix present. Intestinal caecum absent. Spicules subequal, arcuate, alate. Caudal papillae numerous. Vulva anterior to mid-length of body. Oviparous. Parasites of marine and freshwater fishes.

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