THE XIPHINEMA-AMERICANUM GROUP (NEMATODA, LONGIDORIDAE) - 2 - OBSERVATIONS ON XIPHINEMA-BREVICOLLUM LORDELLO AND DA-COSTA, 1961 AND COMMENTS ON THE GROUP
M. Luc et al., THE XIPHINEMA-AMERICANUM GROUP (NEMATODA, LONGIDORIDAE) - 2 - OBSERVATIONS ON XIPHINEMA-BREVICOLLUM LORDELLO AND DA-COSTA, 1961 AND COMMENTS ON THE GROUP, Fundamental and applied nematology, 21(5), 1998, pp. 475-490
This article begins with a critical review of the article of Lamberti
et al. (1992) with descriptions of X. brevicollum, X. diffusum, and th
ree new species (X. parvum, X. pseudoguirani, X. taylori), all closely
related to each other. After studying type specimens of these five sp
ecies and paratypes of X. incognitum and X. sheri, the present authors
propose X. diffusum, X. incognitum, X, parvum, X. pseudoguirani, X. s
heri, and X, taylori as junior synonyms of X. brevicollum. The second
part of the article includes a detailed characterization of the Xiphin
ema americanum-group and a list of its species. X. pachydermum, X. bre
visicum, X. longistilum, X. mesostilum, and X, microstilum are exclude
d from the X. americanum-group. (C) Orstom/Elsevier, Paris.