Two new species of cymothoid isopods, ceratothoa marisrubri sp. nov. and Li
voneca papernea sp. nov., are described from the Red Sea coast of Israel an
d the Sinai peninsula. A third isopod, Nerocila sigani, is reported again f
rom the Gulf of Eilat. A part of the specimens live as parasites on fish ca
ught in recent years in the Gulf of Eilat; another part were recovered from
the National Fish Collection of the Hebrew University of Jerusalem.