A new nematode species, Dujardinascaris mormyropsis n. sp. (Anisakidae), is described from specimens found in the stomach and intestine of the cornish jack Mormyrops anguilloides (Linnaeus) (Osteoglossiformes; Mormyridae) in the Sangha River (Congo River basin) in Dzanga-Sangha Protected Areas, Central African Republic. Based on light and scanning electron microscopical examination, the new species differs from the only other congeneric species parasitising fishes in Africa, D. malapteruri (Baylis, 1923), mainly in the presence of dentigerous ridges on lips, absence of lateral caudal alae in the cloacal region, in the anteriorly curved, non-bifid distal tip of the gubernaculum and larger eggs (60-90 × 52-78 vs 45 × 30 μm); males of D. mormyropsis are characterised by the presence of a ventral precloacal cuticular ornamentation not observed in other Dujardinascaris spp. Dujardinascaris mormyropsis and D. malapteruri also differ in the order of their fish hosts (Osteoglossiformes vs Siluriformes). Specimens previously reported as Dujardinascaris graberi Troncy, 1969, a junior synonym of D. malapteruri, from Mormyrops engystoma Boulenger in Chad belong to the new species D. mormyropsis.

• MeSH
• Ascaridoidea classification   cytology   ultrastructure   MeSH
• Species Specificity MeSH
• Electric Fish parasitology   MeSH
• Ascaridida Infections parasitology   veterinary   MeSH
• Intestines parasitology   MeSH
• Stomach parasitology   MeSH
• Animals MeSH
• Check Tag
• Male MeSH
• Female MeSH
• Animals MeSH
• Publication type
• Journal Article MeSH
• Research Support, Non-U.S. Gov't MeSH
• Geographicals
• Africa, Central MeSH