Fróðskaparrit - 01.01.1999, Qupperneq 235

ECHINODERMATA, ASTEROIDEA í FØROYSKUM ØKI
239
Order VALVATIDA
Family ODONTASTERIDAE
Genus Odontaster Verrill, 1880
Odontaster sp. cf. O. mediterraneus
(Marenzeller, 1891)
Reference to best description of the species:
Mortensen (1927:77-78)
BioFar stations: 68 (1), 421 (1), 495 (1), 515 (1)
Other records: Odontaster sp. Gage et al, (1985) from
the Porcupine Seabight (R=29 mm)
Bathymetrical range within the area: 597 - 700 m
Substrate: sand, gravel, small stones
Temperature: 2.6°C (measured); estimated: 3.1° -
8.2°C
Watermass: AW, AW/AI, AI
World distribution: Porcupine Seabight, south-west of
Ireland, the Bay of Biscay and the Mediterranean.
This distribution pattem pertains to O. mediterra-
neus (Marenzeller, 1891).
World bathymetrical range: 414 - 1,800 m
Remarks: Clark in Gage et al., (1985) found that two
specimens of Odontaster collected in the Porcupine
Seabight showed divergencies from Mediterranean
specimens of O. mediterraneus.
It leaves room for doubt as to the extension of O.
mediterraneus to the SW of Ireland. More material
is needed for further assessment of the identity of
these specimens.
Family ASTERINIDAE
Genus Tremaster Verrill, 1880
Tremaster mirabilis Verrill, 1880 (Map4)
Reference to best description of the species: Clark and
Downey (1992: 196, Pl. 44a,b)
BioFar station: 118 (1)
Bathymetrical range within the area: 450 m
Substrate: sand and gravel
Temperature: 6.2°C (measured)
Watermass: AW/AI
World distribution: In the Westem Atlantic from
Labrador and Nova Scotia south to Cuba, south and
east of the Falkland Islands; in the Eastem Atlantic
off the mid-Norwegian coast, the Faroes, SE Ice-
land, SE Greenland, the Barents Sea, Kerguelen in
the Antarctic.
World bathymetrical range: 150 - 1,060 m (Clark and
Downey 1992)
Remarks: The species is new to the Faroes.
Family PORANIIDAE
Genus Chondraster Verrill, 1895
Chondraster grandis (Verrill, 1878)
(Map 4)
Synonyms: Porania grandis Verrill 1878; ? Mar-
ginaster fimbriatus Sladen 1889; ? Cheilasterfim-
briatus Bell 1893; Culcita borealis Siissbach and
Breckner 1911
Reference to best description of the species: Clark and
Downey (1992: 203-204, Pl. 49A-F)
BioFar stations: 71 (1), 301 (1), 335 (1), 696 (3)
Other records: Faroe Bank and Lousy Bank (Clark
1984)
Bathymetrical range within the area: 358 - 1319 m
Substrate: sand, gravel, large stones
Temperature: 1.3° - 7.5°C (measured)
Water mass: AW , AW/AI, AI, AI/NW
World distribution: In the W. Atlantic from Cape Cod
to Cape May; in the E. Atlantic from Lousy Bank
and Wyville-Thomson Ridge to the southem Bay
of Biscay.
World bathymetrical range: 300 - 2490 m
Remarks: Some specimens determined by Madsen to
be Porania pulvillus are probably C. grandis as
they have characteristics of C. grandis described
by Clark and Downey (1992).
Genus Porania Gray, 1840
Porania pulvillus (O.F. Miiller, 1776)
(Map 4)
Synonyms: Asterias pulvillus O.F. Muller 1776; Aster-
opsis pulvillus Miiller and Troschel 1842
Reference to best descriptions of the species:
Mortensen (1927: 90-92, Fig. 51); Clark and
Downey (1992: 209-210, Pl. 47a-c)
BioFar stations: 68 (1), 70 (1), 90 (2), 279 (1), 497 (1),
529(1), 531 (1)
Other records: Húsagrynna, 62°02’ 10N, 06°16’50W
(Lieberkind 1929); Lousy Bank (Mortensen 1927)