From 1970 to 1997, 482 Portunidae were collected from various intertidal en
vironments along the southern Somalian coast and, to a lesser extent, from
Kenya and the Mascarene Islands. The material belongs to 39 species of whic
h 13 are new for the Somalian coast, 5 for the East African coast and 2 for
the western Indian Ocean: Charybdis hawaiensis Edmondson 1954 previously k
nown only for Hawaii and Carupella banlaensis Tien 1969 only known for the
Tonkin Gulf.