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The World of Protozoa, Rotifera, Nematoda and Oligochaeta

Ref ID : 5955

R.H. Mulvey and R.V. Anderson; Description and relationships of a new root-knot nematode, Meloidogyne sewelli n, sp. (Nematoda: Meloidogynidae) from Canada and a new host record for the genus. Can.J.Zool. 58:1551-1556, 1980

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A new root-knot nematode from Quebec, Canada, Meloidogyne sewelli n. sp. is described and illustrated from spike-rush, Eleocharis acicularis (L.) R. & S. The most distinctive characters of the infective larva are its body length of 505-553 µm, posterior position of the dorsal esophageal gland orifice at 7-8 µm, and the presence of an inflated rectum. The egg sac is larger than the female and always contained within the root gall. Perineal pattern of the female is weakly etched or indistinct and the terminus of the male tail is distinctively subdigitate. The above type host plant is a new host record for root-knot nematodes. Relationships of the new species to five of the most closely related species are discussed and a taxonomic key and table of diagnostic characters to their infective larvae are presented.