A new deep-sea isopod species from the Angola Basin: Prochelator angolensis sp. nov. (Asellota: Desmosomatidae)

A new isopod of the genus Prochelator (Desmosomatidae) is described from the abyssal plain of the South East Atlantic Ocean. This is the first record of Prochelator in the Angola Basin. The new species differs from all other species particularly in antennular setation, the shape of pereonite four and operculum, and the presence of very small posterolateral spines. Furthermore, the species Desmosoma serratum is transferred to the genus Prochelator.