Abstract
The taxonomic status of some nippostrongyline nematodes deposited in the National Collection of Animal Helminths, Onderstepoort, is revised. Heligmonina boomkeri n. sp. is described from Aethomys chrysophilus from South Africa. The most closely related species by the body measurements and the pattern of the caudal bursa is Heligmonina bignonensis Diouf, Bâ & Durette-Desset, 1997, a parasite of Mastomys erythroleucus from Senegal. It differs from the new species mainly in the number of ventral cuticular ridges at mid-body (four versus five) and the left ala in the male is shorter than the body diameter. The systematic position of Heligmonina spira (Ortlepp, 1939) and Neoheligmonella capensis (Ortlepp, 1939) is confirmed here through their synlophe, which was not previously studied.
Highlights
The Nippostrongylinae (Heligmonellidae) are parasites of relatively recent appearance, during the Upper Miocene (Durette-Desset 1985)
A phylogeny of the Trichostrongylina based on morphological features was proposed by Durette-Desset (1985)
Before embarking upon this work, it was necessary to clarify the systematic position of some species in which the synlophe, the main character used for the determination of a species, is not known or was insufficiently described
Summary
The Nippostrongylinae (Heligmonellidae) are parasites of relatively recent appearance, during the Upper Miocene (Durette-Desset 1985). Left ala longer than body diameter in male, shorter in female (Fig. 2A and B).
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