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Mysids of the Genus Boreomysis from Abyssopelagic Regions of the North-Eastern Atlantic

The geographic and vertical distribution in the world oceans of species of Boreomysis has been summarized by Mauchline & Murano (1982). Various authors including Birstein & Tchindonova (1958) discussed the vertical distribution of abyssal Boreomysis species in the Pacific Ocean. Relatively little is known about Atlantic populations of Boreomysis at depths >2000 m, though there have been a few reports of occurrences in abyssopelagic zones (Nouvel, 1942, 1943; Tattersall & Tattersall, 1951; Lagardère & Nouvel, 1980; Lagardère, 1985; Hargreaves, 1985). The aim of this paper is to present distribution data on five lesser-known species of Boreomysis from depths >2000 m in the north-eastern Atlantic Ocean at ~30° -42°30′N and to describe in more detail, aspects of their morphology.