Author:
Wouts Wilhelmus,Yeates Gregor,Loof Pieter
Abstract
Abstract
Seven Ogma species new to science are described from native vegetation in New
Zealand. O. campbelli n. sp. and O. sexcostatum n. sp. have six, Ogma
polyandra n. sp., O. subantarcticum n. sp., O. semicrenatum n. sp., O.
paucispinatum n. sp. and O. crenulatum n. sp. have eight or more rows of
palmate scales. O. sexcostatum differs from O. campbelli by its shorter body
(0.36 vs 0.49 mm), greater number of body annules (60-69 vs 50-57) and
shorter spines on the ventral side of the post-vulval area. O.
subantarcticum and O. polyandra both have a fringe of appendages on the lip
annules but differ in body diameter (64 vs 47 mu m), number of spines per
body scale (more than seven vs less than eight) and stylet length (102 vs 92
mu m). O. semicrenatum has no appendages on the first lip annule. O.
paucispinatum differs from the previous species by having less than five
(generally three) appendages on the scales. O. crenulatum differs from O.
subantarcticum and O. semicrenatum, the species with about five appendages,
by the weakly crenate or smooth edge of both the first and the second lip
annule. Blandicephalanema is represented by B. serratum Mehta & Raski,
1971, B. pilatum Mehta & Raski, 1971 and B. bossi Reay, 1987.
Criconematidae (Nematoda: Tylenchida) de Nouvelle Zelande: genres Ogma
Southern, 1914 et Blandicephalanema Mehta & Raski, 1971 - Sept nouvelles
especes pour la science associees a la vegetation indigene sont decrites de
Nouvelle Zelande, Ogma campbelli n. sp. et O. sexcostatum n. sp. montrant
six rangees d'ecailles palmees, O. polyandra n. sp., O. subantarcticum n.
sp., O. semicrenatum n. sp., O. paucispinatum n. sp. et O. crenulatum n. sp.
en montrant huit ou plus. O. sexcostatum se difference d'O. campbelli par le
corps plus court (0.36 vs 0.49 mm), le plus grand nombre d'anneaux du corps
(60-69 vs 50-57) et les epines plus courtes sur la face ventrale de la
region post vulvaire. O. subantarcticum et O. polyandra portent tous deux
une frange d'appendices sur les anneaux labiaux mais se differencient par le
diametre du corps (64 vs 47 mu m), le nombre d'epines par ecaille (moins de
sept vs plus de huit) et la longueur du stylet (102 vs 92 mu m). O.
semicrenatum ne porte pas d'appendice sur l'anneau labial. O. paucispinatum
se differencie des precedentes especes en ayant moins de cinq (generalement
trois) appendices sur les ecailles. O. crenulatum se differencie d'O.
subantarcticum et O. semicrenatum, especes avec environ cinq appendices, par
le bord legerement crenele ou lisse du premier et du second anneau labial.
Blandicephalanema est represente par B. serratum Mehta & Raski, 1971, B.
pilatum Mehta & Raski, 1971 et B. bossi Reay, 1987.
Subject
Agronomy and Crop Science,Ecology, Evolution, Behavior and Systematics
Cited by
1 articles.
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