Family: Pseudaliidae

Revised 07/05/24

Classification:
 

   Chromadorea

Chromadoria

Rhabditida

Rhabditina

Metastrogyloidea

Pseudaliidae Railliet & Henry 1909

The Pseudaliidae  is a family of nematodes that infect the lungs and sinuses of cetaceans and, more rarely, mongooses.

Three subfamilies:

• Halocercinae Delamure, 1952 - paraites of lungs of dolphins
• Pseudaliinae Raillet & Henry, 1909 - parasites of vascular system and heart of porpoises.
• Stenurinae Skrjabin, 1942 - parasites of lungs and circulatory system of dolphins, porpoises

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Morphology and Anatomy:

• Buccal capsule vestigial; mouth without lips
• bursa reduced, rays usually fused;
• vulva in posterior region of body, usually with sphincter;
• female monodelphic;
• ovoviviparous.

Per Pool et al., 2020. from morphological analaysis of male brusa shape, and molecular analysis, Skrjabinalius Delyamure, 1942 is considered a synonym of Halocercus Baylis & Daubney, 1925, both of the subfamily Halcercinae.

References

Beveridge, I., Spratt, D.M.  and Durette-Desset, M-C. 2014. Order Strongylida (Railliet and Henry, 1913). In Schmidt-Raesa, A. (ed). Handbook of Zoology: Gastroctricha, Cycloneurelia and Gnathifera. Vol 2. Nematoda. De Gruyter, Berlin

Durette-Desset, M-C., Hugot, J.P., Darlu, P. and Chabaud, A.G. 1999. A cladistic analysis of the Trichostrongyloidea. Int. Jour. Parasitol. 21:579-587.

Pool, R., Fernandez, M., Chandradeva, N., Raga, J.A., Aznar, F.J. 2020. The taxonomic status of Skrjabinalius guevarai Gallego & Selva, 1979 (Nematoda: Pseudaliidae) and the synonymy of Skrjabinalius Delyamure, 1942 and Halocercus Baylis & Daubney, 1925. Syst. Parasitol 97:389-401.

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