Lima sarsii forekommer sparsomt langs vor vest- og 
nordkyst op til Vadsø, men synes ganske at mangle langs 
sydkysten. Arten er desuden funden langs hele Europas 
vestkyst samt i Middelhavet og ved St. Helena. Den 
bathymetriske udbredelse er 50—1417 fv. Fossil er den 
kjendt fra Sicilien og Rhodes. 
Lima sarsti oceurs sparingly along the west coast of 
Norway, and the north coast up to Vadsø, but seems to 
be altogether absent from the south coast. The species is 
found, moreover, along the entire west coast of Europe, 
in the Mediterranean, and at St. Helena. Its bathymetrical 
distribution is from 50 to 1417 fathoms. It is known as 
a fossil in Sicily and Rhodes. 
Pecten fragilis, Jeffreys. 
Pecten fragilis, Jeffreys, Ann. & Mag. Nat. Hist. ser. 4, vol. 18, 1876, p. 424. 
Findested. Stat. 35, 40, 51, 53, 96, 205, 240, 248, 
295, 308, 312, 353. Dybde 658—1539 fy. 
De største exemplarer var indtil 25 mm. lang, 23 
mm. bred. 
Denne ægte dybvandsform hører hjemme paa de store 
oceandyb mellem Spitsbergen og Grønland i nord og Cape 
Hatteras og Senegambien i syd. Den bathymetriske ud- 
bredelse er 658—1785 fy. 
Jeffreys, Proc. Zool. Soc, 1879, p. 
591, PI. 45, fig. 1. 
Locality. Stations 35, 40, 51, 53, 96, 205, 240, 
295, 303, 312 and 353. Depth 658—1539 fathoms. 
The largest specimens were as much as 25 mm. in 
length, and 23 mm. in breadth. 
This true deep-water form inhabits the great ocean 
depths between Spitsbergen and Greenland to the north, 
and Oape Hatteras and Senegambia to the south. Its 
bathymetrical distribution is from 658 to 1785 fathoms. 
248, 
Pecten imbrifer, Lovén. 
Pecten imbrifer, Lovén, Ind. Moll. Seand., 1846, p. 31. 
Verrills beskrivelse af cyclopecten pustulosus 1 sit ar- 
beide over familien pectimidæ*) stemmer i det store hele 
overens med den nordeuropæiske pecten imbrifer, Lovén, dog 
er hos den amerikanske form de radierende ribber paa 
venstre skallet mere faatallige. Dette byder imidlertid neppe 
noget fuldt tilfredsstillende artsmærke, hvorfor vi maa anse 
den nordamerikanske form identisk med den europæiske. 
Verrills tegning (tab. 19, fig. 3, 4) kan vi dog vanskelig 
bringe 1 overensstemmelse med hans tidligere af pecten 
pustulosus. Hans cyclopecten subimbrifer (p. 84). som han 
i tidligere arbeider har identificeret med den nordeuropæiske 
art, turde derimod være forskjellig fra denne. 
Findested. Stationerne 48, 164, 192, 237, 262. 270. 
290, 823, 357. Dybde 125—649 fy. 
De hoiarktiske exemplarer udmærker sig fra de ved 
Medens 
disse ikke bliver mere end 11 mm., var exemplarer, som 
Et 20 mm. lanet 
exemplar fra stat. 237 nærmede sig meget den af Posselt 
i Conspectus Fauna Groenlandicæ ip. 13, tab. 1, fig. 1) 
beskrevne varietet lamellosa. 
den norske kyst forekommende ved sin størrelse. 
maalte 20 mm., ikke sjeldne blandt hine. 
1) Trans. Conneclieut Acad., vol. 10, 1897, p. 83. 
hoskynsi, G. O. Sars, Moll. Reg. Arct. Norv., 1878, p. 30. Pl. 2, fig. 
1 a—e. 
Verrill's description of Cyclopecten pustulosus, in his 
work on the Pectimidæ family’), agrees on the whole with 
the North European Pecten imbrifer, Lovén, although the 
radiating ribs on the left valve in the American form are 
fewer in number. This, however, scarcely constitutes an 
altogether satisfactory specific feature, and we must there- 
fore regard the North American form as identical with the 
European. We have some difficulty, however, in making 
Verrill's drawing (Pl. XIX, figs. 3, 4) agree with his earlier 
one of Pecten pustulosus. On the other hand, his Cyclo- 
pecten subimbrifer (p. 84), which, in earlier works, he has 
identified with the North-European species, possibly differs 
from it. 
Locality. 
823, and 357. 
Stations 48, 164, 192, 237, 262, 270, 290 
Depth 125—649 fathoms. 
The high-aretic specimens are distinguished from those 
occurring on the Norwegian coast by their size; for whereas 
the latter do not 
measuring 20 mm. were not uncommon among the former. 
One of these, measuring 20 mm. in length, from Station 
237, bore a great resemblance to the variety /amellosa, 
described by Posselt in ,,Conspectus Fauna Greenlandica 
(p. 13, Pl. I, fig. 1). 
1) Trans. Connecticut Acad., vol. 10, 1897, p. 83. 
p) 
attain more than 11 mm., specimens 
