FIRST RECORD OF ROSSL4 MACROSOMA AND OCTOPUS DEFILIPPI (CEPH4LOPODA : MOLLUSCA) LN THE EGYPTIAN MEDITERRANEAN WATERS.

FIRST RECORD OF ROSSL4 MACROSOMA AND

OCTOPUS DEFILIPPI (CEPH4LOPODA : MOLLUSCA)

LN THE EGYPTIAN MEDITERRANEAN WATERS.

BY

RIAD, R.*
*National institute a/Oceanography and Fisheries. Alexandria. Egypt.
Key words: Cephalopods, Taxonomy, Rossia macrosoma, Octopus dejilippi,
Egyptian wateps.
ABSTR4CT
Present investigation yielded fWo new~r recorded cephalopod
species namely Rossin macrosoma (J 1 individuals) sampled from the
area between Abu-Qir and Rosetta at 20-70 m depth ]rom over a silty
bollom and Octopus dejilippi (J 7 individuals) from Sidi Abdel
Rahman area from a vel)· coarse calcarious sand (bioclastic) bOllom
at 30 10 60 meters are described. The main diagnostic charaCTers for
Rossia macrosoma are.· dorsal mantle border not fused to head and
the ink sac possesses regular anal flaps. Octopus defilippi is
characterized by the presence ~f one d,nts over each eye and 8-11
gil/lamel/ae on the outer demibranch.