Atlantic and Mediterranean species of the genusAndaniexisStebbing (Amphipoda: Stegocephalidae)

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Abstract
The Atlantic and Mediterranean species of the genus Andaniexis Stebbing, 1906 (Amphipoda: Stegocephalidae) are reviewed, and three new species are described. The species Andaniexis abyssi (Boeck, 1871) which previously was considered a widely distributed species (from Baffin Bay to both Spitzbergen and the Skagerrak), is here divided into three species: Andaniexis abyssi s.str., Andaniexis gracilis n.sp. and Andaniexis lupus n.sp. These species, together with Andaniexis mimonectes Ruffo, 1975, all have allopatric distributions. This is especially evident in northern Norway, where A. abyssi has its northernmost limit: A. abyssi is found in Solbergfjorden (69°10′N), while Andaniexis lupus is found in the adjacent fjord Malangen (69°30′N, the southern limit of this species along the Norwegian coast). Andaniexis eilae n.sp. is described from Iceland. This species is not closely related to the other North Atlantic species of the same genus.