Hi Dr Fouad, here are two links of key taxonomic for mediterranean and black sea (but in french). Hope it will be for little help
see volume I in:
http://www.fao.org/docrep/009/x0169f/x0169f00.htm
Here you can chearch by species, group, georaphical zone... (the same could be also found as Android app that you can download it on the google store- the app is Doris Android- very usefull)
You should try with the keys of Carlgren (http://hercules.kgs.ku.edu/hexacoral/anemone2/reference_detail.cfm?ref_number=31&type=Article) and Stephenson (http://hercules.kgs.ku.edu/hexacoral/anemone2/reference_detail.cfm?ref_number=505&type=Book). Both are in English and the latter case was mostly developed in species that can be found in the Mediterranean. Hope this helps get you started.
you can find a useful ID-Guide to mediterranean Actiniaria in the book of R. Hofrichter (ed.) published 2003 in the Spektrum-Verlag (german language): Das Mittelmeer - Fauna, Flora, Ökologie. The key in the Actiniaria chapter (written by Vreni Häussermann) shows photographs of all the species, which are described in brief re. their characters, size, ecology, reproduction and distribution. Hope this helps,