Revision of the amphipod genus Valettiopsis Holmes, 1908 (Crustacea: Lysianassoidea), with the addition of three new species

The amphipod genus Valettiopsis Holmes, 1908 currently comprises four species. Valettiopsis macrodactyla Chevreux, 1909 is redescribed from new material. Two new species, Valettiopsis longidactyla and Valettiopsis minuta, are described and illustrated, and Valettiopsis macrodactyla (sensu Lincoln and Thurston, 1983) is renamed Valettiopsis lincolni sp. nov. General information is provided for the remaining species in the genus (Valettiopsis dentata Holmes, 1908, Valettiopsis multidentata Barnard, 1961 and Valettiopsis ruffoi Serejo and Wakabara, 2003) and a key to the seven species is provided.