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Five New Species of Criconematidae (Nemata) From Southern Chile

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Five new species of criconematids are described from soil samples collected in or near Tierra del Fuego, Chile. Bakernema velatum n. sp. is related to B. variabile Raski & Golden, 1966, but differs in its shorter stylet (72-82 μm), total length (0.40-0.53 mm) and cuticular fringe. Nothocriconema neopacificum n. sp. is most closely related to N. pacificum (Andrissy, 1965) Andrissy, 1967 and is distinguished by R = 81-91, RV = 9-11 and by triangular, spine-like markings of the larval cuticle. Criconemella meridiana n. sp. is distinguished by absence of submedian lobes and by rows of cuticular ornamentations on larvae. Seriespinula racemispinosa n. sp. is distinguished from all other species of that genus by one cephalic annule, by presence of submedian lobes and by rounded cuticular protuberances arranged in rows and off-set on every other body annule, each protuberance bearing sharply pointed spines. Hemicycliophora monticola n. sp. is closely related to H. macristhmus Loof, 1968 but differs in shape of tail, distinct annulations to terminus, well-developed spermatheca with sperms and cuticle marked with irregular lines.

Affiliations: 1: Research Nematologist; 2: Nematologist, Division of Nematology, University of California, Davis, CA 95616, U.S.A.; 3: Nematologist, Fac. Ciencias Agraria, Vet. y Forestales Universidad de Chile, Casilla 1004, Santiago, Chile


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