MYSIDACEA (CRUSTACEA) IN THE FAROE AREA Pseudomma jasi Meland & Brattegard, 1995 Good description: Meland and Brattegard (1995: 142, figs. 25, 26). Previous records: None. BIOFAR stations: 696 (type locality). Area: North of Bill Bailey Bank. Depth: 1319 m. Temperature: measured, 1.3 °C. Water mass: AW/AI/NW (1 stn). Atlantic distribution: southwest of the Faroes. Atlantic depth: Only known from the type-locality, 1319 m, hyperbenthic. Pseudomma nanum Holt and Tattersall, 1906 Good descriptions: Tattersall and Tattersall (1951: 238, fig. 54); Nouvel and Lagardere (1976: 1299, figs. 164- 184); Meland and Brattegard (1995: 137, figs. 18, 19, 27). Previous records: None. BIOFAR stations: 68, 9003. Areas: Southwest of Wyville-Thomson Ridge, and north of Faroe Bank. Depth range: 600 - 1414 m. Temperature: measured at one stn, 4.5 °C; estimated range 4.4 - 9.1 °C. Water masses: AW (1 stn) and AW/AI (1 stn). Bottom type: Soft bottom. Atlantic distribution: The Faroes; west and south-west of Ireland, and Bay of Biscay. Atlantic depth range: 360 - 1500 m, hyperbenthic (Meland and Brattegard, 1995). Also found in stomachs of demersal fish in Rockall Trough at depths of 1500 and 2200 m (Mauchline, 1982). Bank and the southern slope and top of Faroe-Iceland Ridge(Fig. 17). Depth range: 425 - 940 m. Temperature: measured at 7 stns, -0.1 to 6.5 °C; estimated range < 0 - 9 °C. Water masses: AW (3 stns), AW/AI (3 stns), AI (5 stns) and AI/NW (4 stns). Bottom types: Soft bottom, sand. Atlantic distribution: From Lofoten, Norway to Bay of Biscay; the Faroes; south of Iceland; west of Greenland; Gulf of St. Lawrence, Gulf of Maine, and just south of Georges Bank. Atlantic depth range: 216 - 1260 m, hyperbenthic. Pseudomma truncatum S. I. Smith, 1879 Good description: Meland and Brattegard (1995: 120, figs. 9, 10). Previous records: None. BIOFAR stations: 15, 41, 82, 380, 424, 458, 9013, 9014. Areas: The top of the Faroe-Iceland Ridge, the northern and eastern slopes of the Faroe plateau, and the south-eastern slope of Faroe Bank. Depth range: 425 - 780 m. Temperature: measured at 8 stns, -0.6 to 6.5 °C. Water masses: AW/AI (1 stn), AI/NW (2 stns) and NW (5 stns). Atlantic distribution: The Faroes; widely distributed in cold areas of the North Atlantic (Meland and Brattegard 1995, fig. 11, p. 124), but they noted that there is morphological variation between populations in the north-western Atlantic, the north-eastern Atlantic, and the northem Pacific. Further investigation on morphological variation should help solving the problem of the taxonomic status of P. truncatum. Atlantic depth range: 100 - 780 m, hyperbenthic. Pseudomma roseum G. O. Sars, 1870 Synonyms: Wrongly identified as P. ajfine by Patience (1904; 1907) and by Holt and Tattersall (1905). Good description: Meland and Brattegard (1995: 124, figs. 1,2, 12, 13). Previous records: »Thor«, 61° 08' N, 9° 28' W, 820 m, and 61° 15' N, 9° 35' W, 940 m (Hansen, 1908). BIOFAR stations: 10, 82 (P. cf. roseum), 120, 124, 172, 232, 267, 380, 421, 422, 447, 492, 739. Areas: Mainly found on the eastern and northeastern slopes of the Faroe plateau, the western slope of Faroe Tribe Leptomysini Genus Leptomysis G. O. Sars, 1869 Leptomysis gracilis (G. O. Sars, 1864) (Fig. 18 A) Synonyms: Mysis gracilis Sars (1864); Mysidopsis hispida Norman (1869). Good description: Tattersall and Tattersall (1951: 287, figs. 70, 71). Previous records: None.