Speciation and specificity in parasitic copepods: caligids of the genus Lepeophtheirus, parasites of flatfishes in the Mediterranean. - De Meeüs, T., A. Raibaut & F. Renaud (In: Boxshall, G.A. & D. Defaye (eds.). Pathogens of wild and farmed fish: sea lice. Ellis Horwood, New York, London etc.,1-378., 1993)