Abstract
For four species of Paraleptomysis, revised or new descriptions are given based on type matenal and partly on additional material from a large distribution range. P. banyulensis (BĂCESCU) is elevated to species rank, and a new taxon, P. dimorpha sp.n., from equatorial West Africa is described. One may distinguish two biogeographically definable groups: 1) Atlantic and Mediterranean species, P. apiops, P. banyulensis, and P. dimorpha, with one spiniform projection at sympod of antenna; and 2) eastern Indian Ocean and China Sea species, P. xenops and P. sinensis, with two projections at this sympod.

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