A new species of Procyrnea (Nematoda: Habronematidae) parasitic in Rhea pennata (Aves: Rheidae) from Patagonia, Argentina, with a key to species of the genus

Procyrnea choique n. sp. is described from the lesser rhea, Rhea pennata d´Orbigny (Aves: Rheidae), from the Protected Natural Area Península Valdés, Chubut province, Argentina. The new species resembles P. ficheuri, P. murrayi, P. excisiformis, P. dollfusi, P. haliasturi, P. anterovulvata, P. gracu...

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Bibliographic Details
Published in:Journal of helminthology 2018-07, Vol.92 (4), p.504-513
Main Authors: Bagnato, E., Frixione, M., Digiani, M.C., Cremonte, F.
Format: Article
Language:English
Subjects:
Aves
Birds
Congeners
Identification keys
Males
Nematoda
New species
Parasites
Parasitology
Physical characteristics
Research Paper
Rhea pennata
Rheidae
Ridges
Scanning electron microscopy
Spirurida
Spiruridae
Taxonomy
Vulva
Worms
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Description
Summary:Procyrnea choique n. sp. is described from the lesser rhea, Rhea pennata d´Orbigny (Aves: Rheidae), from the Protected Natural Area Península Valdés, Chubut province, Argentina. The new species resembles P. ficheuri, P. murrayi, P. excisiformis, P. dollfusi, P. haliasturi, P. anterovulvata, P. graculae, P. brevicaudata, P. uncinipenis, P. javaensis, P. ameerae, P. ornata, P. aegotheles, P. spiralis, P. ruschii and P. aptera, mainly in the absence of lateral alae; but differs from its congeners by having a left spicule without barbs, the position of the vulva which is post-equatorial, the absence of lateral ridges, absent median precloacal papilla, asymmetrical caudal alae, males more than 6 mm long, left spicule 1 mm long and spicule ratio 1:3. Our results extend the taxonomy of Procyrnea Chabaud, 1958 and comprise the first report of a habronematid from R. pennata. A key to species of Procyrnea is presented.
ISSN:0022-149X
1475-2697
DOI:10.1017/S0022149X17000657