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La Super-Espèce Jaera Nordmanni (Rathke) (Isopodes Asellotes, Janiridae)

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Jaera nordmanni (Rathke), hitherto regarded as a widely distributed monotypic species, actually includes three distinct forms, each with a precise geographical distribution. Because of their genetic isolation these three forms should be given specific rank, but because of their extreme similarity they must be grouped as a super-species. Within this complex the taxonomic intervals are not equivalents; J. n. nordmanni is more closely related to J. n. nordica than is either J. n. nordmanni or J. n. nordica to J. n. massiliensis.

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Affiliations: 1: Laboratoire de Zoologie, Faculté des Sciences, Caen


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