REYÐÆTI AV SLAGNUM MYSIDACEA A LANDGRUNNINUM 89 BIOFAR stations: 60, 126, 176, 693. BIOFAR 2 station: 1160. Areas: Between the Faroe Islands and on the top of Lousy Bank. Depth range: 35 - 290 m. Temperature: measured at one stn, 8.0 °C; estimated range 5.0 - 10.4 °C. Water mass: AW. Atlantic distribution: Coastal and shelf species, from Lofoten, Norway to Gulf of Gascogne (Lagardere and Nouvel, 1980b); the Faroes; off Larache, Morocco (Lagardere, 1972); Mediterranean. Atlantic depth range: 11 - 494 m, hyperbenthic. Genus Mysideis G. O. Sars, 1869 Mysideis insignis (G. O. Sars, 1864) (Fig. 18B) Synonyms: Mysis insignis Sars (1864); Mysidopsis hibernica Norman (1892). Good description: Tattersall and Tattersall (1951: 311, figs. 79, 80). Previous records: None. BIOFAR stations: 27, 32, 51, 62, 65, 70, 100, 452, 496,518,519,9004. Areas: On the Faroe plateau and in upper slope water north and west of the Faroes, west and north of Faroe Bank, and on the top and the northern slope of Lousy Bank. Depth range: 225 - 515 m. Temperature: measured at one stn, 8.0 °C; estimated range4.0- 10.0 °C. Water masses: AW (11 stns) and AW/AI (1 stn). Bottom types: soft bottom, sand, fine shell-sand. Atlantic distribution: From western Finnmark, Norway to Bay of Biscay; the Faroes; south of Iceland. Atlantic depth range: 91 - 1318 m, hyperbenthic. Genus Mysidopsis G O. Sars, 1864 Mysidopsis didelphys (Norman, 1863) (Fig. 19) Synonym: Mysis didelphys Norman (1863). Good description: Tattersall and Tattersall (1951: 317, figs. 81,82). Previous records: None. BIOFAR stations: 6, 7, 19, 27, 28, 29, 32, 51, 52, 60, 62, 65, 70, 72, 73, 98, 100, 165, 176, 356, 359, 518, 688, 690, 693, 9004. BIOFAR 2 station: 1160. Fig. 18. A. Leptomysis gracilis (G. O. Sars), adult female, length ofadults 8-13 mm; B. Mysideis insignis (G. O. Sars), adult female, length ofadults 15-25 mm; C. Praunus inermis (Rathke), adult female, length of adults 11-18 mm; D. Schistomysis ornata (G. O. Sars), adultfemale, length ofadults 19 mm. (Allfrom Tattersall andTattersall, 1951). A. Leptomysis gracilis (G. O. Sars), fullvaksið kvenndýr, longd á fullvaksnum 8-13 mm; B. Mysideis insignis (G. O. Sars), fullvaksíð kvenndýr, longd á fullvaksnum 15-25 mm; C. Praunus inermis (Rathke), fullvaksið kvenndýr, longd á fullvaksnum 11-18 mm: D. Schistomysis ornata (G. O. Sars), fullvaksið kvenndýr, longd á fullvaksnum 19 mm.. (011 frá Tattersall and Tattersall, 1951).