Fróðskaparrit - 01.01.1999, Blaðsíða 240

244
ECHINODERMATA, ASTEROIDEAIN THE FAROE AREA
Order VELATIDA
Family SOLASTERIDAE
Genus Crossaster Miiller and Troschel,
1840
Crossaster papposus (Linne, 1766) (Fig. 3)
Fig. 3. Crossaster papposus (L.), diameter up to 340
mm (Danielssen and Koren 1884).
Mynd 3. Crossaster papposus (L.), tvørmát upp i 340
mm (Ur Danielssen og Koren 18S4).
Synonyms: Asterias papposa Linne 1766; Asterias
afflnis Brandt 1835; Solasterpapposus Miiller and
Troschel 1842; Crossaster affinis Danielssen and
Koren 1877
Reference to best description of the species:
Mortensen (1927: 112-114, Fig. 67); Clarke and
Downey (1992: 297-298, Pl. 74 C,D)
BioFar stations: 3 (1), 8 (1), 56 (1), 105 (1), 326 (1),
350 (4), 368 (4), 548 (2), 606 (1)
Other records: Faroe-Shetland Channel (Bell 1892);
SW of Suðuroy, SE of Fugloy, NE of Kalsoy and
at the Faroe Bank (Lieberkind 1929)
Bathymetrical range within the area: 77 - 171 m
Substrate: mud, sand, shell-sand and stones
Temperature: 7.9° - 9.1°C (estimated)
Watermass: AW
World distribution: Circumboreal: In W. Atlantic
from Labrador south to c. 40°N; in the E. Atlantic
from the Arctic to around the British Isles, south to
Brittany, Iceland. Also distributed in the northem
Pacific Ocean south to Vancouver and the Sea of
Okhotsk (Mortensen 1927).
World bathymetrical range: 0 - 1,200 m.
Remarks: The genus Crossaster may be divided in one
cold water (C. squamatus) and one warm water
species (C. papposus) based on the differences in
the reticulation of the dorsal skeleton and in the
number of furrow spines (Mortensen 1927,
Ringvolđ 1996).
At 12 stations (56, 82, 192, 230, 381, 421, 483,
499, 549, 743, 750 and 9018) small specimens
which could only be determined to family level
were found.
Crossaster squamatus (Doderlein, 1900)
Synonyms: Solaster papposus var. squamatus Doder-
lein 1900
Reference to best descriptions of the species: Doder-
lein (1900); Mortensen (1927: 114)
BioFar stations: 10 (1), 80 (3), 82 (1), 117 (5), 118
(13), 122 (2), 172 (2), 189 (2), 267 (1), 268 (7),
290 (4), 292 (1), 294 (15), 420 (1), 421 (2), 424
(1), 457 (2), 477 (1), 482 (1), 483 (2), 500 (13),
502 (2), 540 (1), 562 (2), 563 (1), 669 (7), 698 (6),
718 (1), 727 (1), 728 (6), 731 (5), 732 (1), 738 (1),
739 (2), 742 (4), 749 (2), 750 (1), 9018 (1)
Other records: Iceland-Faroe Ridge (Murray and Hjort
1912); the Hebrides (56°43’N, 9°21’W) (Gage et
al„ 1985).
Bathymetrical range within the area: 72 - 1,150 m
Substrate: mud, sand, gravel, stones
Temperature: -0.1° - +2.0°C (measured); estimated: -
0.9° - +7.8°C
Water mass: AW, AW/AI, AI, AI/NW, NW
World distribution: East Greenland to the Barents Sea
including most of the cold part of the Norwegian
Sea (Gage et al., 1985); north to Svalbard and
south to the Hebrides, c. 56 °N (Harvey et al.,
1988).
World bathymetrical range: 100 - 1,160 m
Remarks: At two stations (118, 669) C. squamatus
was found in warm water. Downey (in Clark and
Downey 1992) holds C. squamatus synonymous
with C. papposus.