12 
Pecten septemradiatus, O. F. Miller. 
Pecten septemradiatus, O. F. Miller, Prodr. Fau. Dan., 1776, p. 248. 
Døde skaller af denne art fandtes paa stat. 10, 220 
fr. og stat. 149, 149 fv. 
Pecten septemradiatus er almindelig langs hele den 
norske kyst op til Varangerfjorden. Artens sydgrænse er 
ved de Canariske øer og Nordafrikas vestkyst. Den batby- 
metriske udbredelse er 30—1066 fv. Fossil er den funden 
i Skandinavien og de britiske øer. 
triradiatus, O. F. Miller, Op. cit., p. 248. 
O. F. Miller, Fau. Dan., vol. 2, 1788, p. 25, Pl. 60, figs. 1—2. 
septemradiatus, G. O. Sars, Moll, Reg. Arct. Nory., 1878, p. 18. 
Empty valves of this species were found at Station 
10 in 220 fathoms, and Station 149 in 149 fathoms. 
Pecten septemradiatus is common all along the Nor- 
wegian coast up to the Varanger Fjord. The southern 
limit of the species is at the Canary Isles and the north- 
west coast of Africa. Its bathymetrical distribution is from 
30 to 1066 fathoms. It is found as a fossil in Scandinavia 
and the British Isles. 
Pecten sulcatus, O. F. Miiller. 
Pecten sulcatus, O. F. Miiller, Prodr. Zool. Dan., 1776, p. 248. 
Stat. 9, 206 fv., var den eneste localitet, hvor denne 
art blev tagen af Nordhavsexpeditionen. 
Denne vakre art forekommer hyppig langs vor syd- 
og vestkyst op til Lofoten. Mod syd gaar den til Nord- 
afrikas vestkyst og Middelhavet. Vi er nemlig enig med 
Jeffreys i, at den middelbavske pecten bruei og pecten sul- 
catus er identiske. En sammenligning mellem exemplarer af 
pecten bruei Paysaudeau fra Korsika og typiske exemplarer 
af den nordiske pecten sulcatus, viser ikke nogen væsentlig 
forskjel, der kan berettige opretholdelsen af Paysaudeaus 
art. Den bathymetriske udbredelse er 12—909 fv. Fossil 
er pecten sulcatus funden i vore yngre glaciale skjælbanker 
og i Belgiens coralline crag. 
Lovén, Ind. Moll. Scand., 1846, p. 30. 
aratus, Jeffreys, Brit. Conch., vol. 2, 1868, p. 64, vol. 5, 
G. O. Sars, Moll. Reg. Arct. Norv., 1878, p. 17, 
p. 167, 
tab. 2, fig. ab. 
Station 9 (206 fathoms) was the only locality in 
which this species was found by the North Atlantic Ex- 
pedition. 
This beautiful species is frequently met with along the 
Norwegian coast as far north as Lofoten. Southwards it 
extends to the north-west coast of Africa and the Mediter- 
ranean. We agree with Jeffreys in considering the Medi- 
terranean species, P. bruei, to be identical with P. sulcatus. 
A comparison of specimens of P. bruei, Paysaudeau, from 
Corsica, with typical specimens of the northern P. sulcatus, 
we see no essential difference that can justify the main- 
taining of Paysaudeau’s species. Its bathymetrical distribu- 
tion is from 12 to 909 fathoms. P. sulcatus is found as 
a fossil in the Norwegian shell banks of the Later Glacial 
Period, and in the Belgian coralline crag. 
Malletia obtusa, M. Sars. 
Yoldia abyssicola, M. Sars, Christiania Vidensk. Selsk. Forhdl., 1859, p. 86. 
Malleia = — 
Findested. Stationerne 1, 2, 149 og 255. Dybde 
135—672 fv, 
Malletia obtusa, som forst fandtes af M. Sars, 
forekommer paa de storre dyb langs yor yestkyst op 
til Lofoten. Den er funden paa de store 
oceandyb udenfor de britiske øer, Frankrig, Spanien, 
endvidere 
obtusa, M. Sars in G. O. Sars, Remark. Forms Anim, Life, vol. I, 
Mørch, Forhandl. skandinaviske Naturforsk. lite møde, 1873, p. 370. 
G. O. Sars, Moll. Reg. Arct. Norv., 1878, p. 41, Pl. 19, fig. 3a—hb. 
1872, p. 28, Pl. 3, figs. 16—26. 
Locality. Stations 1, 2, 149, and 255. 
—672 fathoms. 
- Malletia obtusa, which was first found by M. 
Sars, occurs in the deep water along the west coast 
of Norway up to Lofoten. It is moreover found 
in the ocean depths off the British Isles, France, 
Depth 135 
