New cephalopod molluscs in the eastern Mediterranean: Previously unnoted species or recent migrants?

Thirteen adult individuals of a small octopus species of the Octopus aegina complex, 7 males and 6 females, were caught by trawl on bottoms ranging fr om 60 to 70 m of depth off the southern coast of Turkey, close to Mersin. T his species (which is similar to O. kagoshimensis) was never before recorde d in the Mediterranean. Further to the West on the southern Turkish coast ( Gulf of Bo-drum), a single individual of a pelagic squid of the genus Octop oteuthis was captured. The tentative identification as O. megaptera is base d on the body shape and the presence and position of two caudal mantle phot ophores; this is the first record of this species in the Mediterranean. The se observations are discussed with regard to questions of species identific ation and possible recent species range extensions due to immigration from the Atlantic, or from the Red Sea (Lessepsian migration).