Published March 28, 2019 | Version v1
Taxonomic treatment Open

Angursa antarctica Villora-Moreno 1998

Description

Angursa antarctica Villora-Moreno, 1998 Emended diagnosis

Angursa with bulbous primary clavae shorter than lateral cirri; pedestals of primary clavae and lateral cirri absent; morphology of secondary clavae unknown; flat tertiary clavae around external cirri; tapering cirri E with annulated scapi situated on short cirrophores; leg I sensory organs present; legs II and III sensory organs absent; leg IV sensory organs each as papilla enveloped in hemispherical cuticular sheath with short, apical spine; weak anal papillae present.

Remarks

We amend the diagnosis of A. antarctica to include the information on the anal papillae noted in the original description (Villora-Moreno 1998) as well as the common pedestals of the primary clavae and the lateral cirri that Villora-Moreno (1998) considered as a distinguishing character but did not include in the diagnosis of A. antarctica. Furthermore, Villora-Moreno (1998) reported the presence of the secondary clavae around the external cirri. As the external cirri are positioned ventrally, we believe that the clavae Villora-Moreno (1998) observed should be referred to as tertiary clavae which are always positioned ventrally in the genus.

Notes

Published as part of Fujimoto, Shinta & Hansen, Jesper Guldberg, 2019, Revision of Angursa (Arthrotardigrada: Styraconyxidae) with the description of a new species from Japan, pp. 1-19 in European Journal of Taxonomy 510 on page 9, DOI: 10.5852/ejt.2019.510, http://zenodo.org/record/2616378

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Additional details

Biodiversity

References

  • Villora-Moreno S. 1998. Deep-sea Tardigrada from South Shetland Islands (Antarctica) with description of Angursa antarctica sp. nov. (Arthrotardigrada, Halechiniscidae). Polar Biology 19: 336 - 341. https: // doi. org / 10.1007 / s 003000050255