Presence of troglobitized Janiridae (Isopoda: Asellota: Janiroidea) in anchihaline caves of the Balearic Islands (Mediterranean); description of Trogloianiropsis lloberai n. gen., n. sp

Trogloianiropsis lloberai n. gen., n. sp. is described from the flooded coastal karst of the Balearic Islands. It superficially resembles Ianiropsis Sars, 1897 and Janaira Moreira & Pires, 1977, but differs from both in some remarkable characters. It seems to be restricted to the deeper layers of anchihaline cave lakes, and shows a troglobitized morphology (i.e.: absence of eyes and body pigmentation, and extraordinary elongation of antennae). Since its phyletic affinities are not clear, its biogeographic significance and possible derivation from deep-sea or shallow-water ancestors cannot be established.