Remarques sur la présence du genre Gammarus (Crustacés amphipodes) au Maroc, avec description d’une nouvelle espèce

A review is given of literature on Moroccan members of the genus Gammarus (Crustacea Amphipoda). Only four Gammarus species were known with certainty from Morocco, viz. Gammarus gauthieri (Karaman, 1935); Gammarus acalceolatus Pinkster, 1971; Gammarus rouxi Pinkster & Goedmakers, 1975; and Gammarus microps Pinkster & Goedmakers, 1975. In the present paper, a new species of Gammarus, G. maroccanus n. sp. is described from freshwater of the northern central region in Morocco, with remarks on its affinities and its ecology.