FOUR SPECIES OF THE XIPHINEMA AMERICANUM GROUP (NEMATODA: LONGIDORIDAE) FROM ISLANDS IN THE WESTERN INDIAN OCEAN BY J. HEYNS1) and A. COOMANS2) 1) Department of Zoology, Rand Afrikaans University, P.O. Box 524, Johannesburg, 2000, South Africa; 2) Laboratorium voor Morfologie & Systematiek, Universiteit Gent, K.L. Ledeganckstraat, B-9000 Gent, Belgium During a survey of nematodes on islands in the Western Indian Ocean, four different 'species' of the Xiphinema americanum group were found. Two of these are tentatively identified as Xiphinema diffusum Lamberti & Bleve-Zacheo, 1979 and Xiphinema pseudoguirani Lamberti, Ciancio, Agostinelli & Coiro, 1992, while the other two do not fit the descriptions of any of the nominal species. One of these is described herein as Xiphinema franci sp. n., while the other is left unnamed. All four forms are illustrated, and their morphometrics tabulated. Keywords: Xiphinema, X. americanum-group, taxonomy, Longidoridae, Indian Ocean Islands In a previous paper on Xiphinema species collected on islands in the Western Indian Ocean (Heyns & Coomans, 1992), we reported on only two species, viz. X. hygrophilum Southey & Luc, 1973 and X. elongatum Schuurmans Stekhoven & Teunissen, 1938. This paper reports on four species of the X. americanum group, which seems to be
Nematologica – Brill
Published: Jan 1, 1994
Keywords: X. americanum-group; Longidoridae; taxonomy; Indian Ocean Islands; Xiphinema
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