First Record of Nemalion helminthoides (Velley in Withering) Batters (Liagoraceae, Rhodophyta) for the Southern Mediterranean Coast of Libya

In this work the occurrence of Nemalion helminthoides (velly) Batters (Liagoraceae, Rhodophyta) on the Mediterranean coast of Libya was reported. This is the first record of N. helminthoides outside its previously known distribution in the Mediterranean sea. The identification was based on morphological revision and comparison with specimens determined by others. Thalli were collected from intertidal zone of ElKhoms beach (Cilin), Libya, in March 2005. The morphological structure, as well as habit and geographic distribution of the species are described. Reproductive structures were also observed in our specimens.