The genus Argulus (Crustacea: Branchiura) in Africa: two new species, A. fryeri and A. gracilis , the previously undescribed male of A. brachypeltis Fryer and the identity of the male described as A. ambloplites Wilson
- Department of Zoology, The Natural History Museum, Cromwell Road, SW 7 5BD, London, UK
Two new species of Argulus Müller, 1785 (Crustacea: Branchiura) are described from Africa. A. fryeri n. sp., parasitic on an unknown fish species collected from Lake Turkana, Kenya, is characterised by: deep antero-lateral depressions which delimit a pronounced frontal region; robust, square second maxillae ornamented with numerous small, simple scales; and the shape of the respiratory areas. The most distinctive features of A. gracilis n. sp., parasitic on Auchenoglanis occidentalis var. tanganicanus collected from Lake Tanganyika, are the anterior spines on the first antennae and the shape of the respiratory areas. A. brachypeltis Fryer, previously known only from the female, is characterised by: a narrow, elongate body with foreshortened carapace lobes; small, slender terminal spines on the first antennae; and short terminal segments on the second maxillae with minute claws. The identity of the male described as A. ambloplites Wilson is discussed and renamed A. confusus nom. nov.
- 1 - sciences appliquees, technologies et medecines
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