During the expedition ‘Me48/1 DIVA 1’, carried out in the abyssal Angola Basin between 5125 and 5415 m depth, several specimens of Solenogastres were collected. Their study has made it possible to describe three new species of the genus Kruppomenia (K. angolensis sp. nov., K. glandulata sp. nov. and K. macrodenticulata sp. nov.) with very significant differences in their radular apparatus, reproductive system and pallial cavity. The absence of radular sacs in K. glandulata sp. nov. modifies the genus definition.

Two specimens of Solenogastres belonging to the family Pruvotinidae recorded from the western Irish Sea are presented. Despite their immature state, they are described due to the poor knowledge of the Solenogastres fauna in that biogeographical area. One specimen can be defined as a new species tentatively classified within the genus Gephyroherpia Salvini-Plawen: G.(?) triangulata sp. nov. The second specimen probably represents a juvenile of Eleutheromenia sp.

A new genus and two new species of Mollusca Solenogastres belonging to the family Simrothiellidae are described here: Spiomenia pusilla sp. nov. and Adoryherpia serrata gen. et sp. nov., collected from muddy sediment during the expedition DIVA 1 Me48/1 carried out in the Abyssal Angola Basin, at depths from 5100 to 5500 m.