Notes concerning the semi-terrestrial and freshwater amphipods (Crustacea : Peracarida) of the Maltese Islands

Abstract

Interest in Mediterranean amphipods has been re-focused recently by the appearance of a new multi-author monograph on the group edited by Professor Sandro Ruffo (1982 and continuing) which, when complete, will replace the classic work of Chevreux & Fage (1925). In spite of this progress, however, wide areas of the Mediterranean are still almost unknown amphipodologically (Ruffo (ed.), 1982) and detailed fauna lists are wanting for many regions. For the past few years, one of us (P.I.S.) has been surveying bodies of freshwater in the Maltese Islands and samples have now been amassed from all the main fresh- and brackish water sites in the islands. Since just about every body of freshwater dries up early in the summer (and remains so for the best part of six months each year) it is interesting to see just how many amphipod species the islands' freshwaters support. Since present knowledge of Maltese semi-terrestrial amphipods is also limited they too have been included in our surveys. The following list summarizes our taxonomic (P.G.M.) and ecological (P.I.S.) knowledge of the Amphipoda from these habitats on the Maltese Islands. All material is deposited in the personal collections of P.I.S. with the exception of Allorchestes aquilinus (A. Costa) which is in the collections of P.G.M.