18 
Leda minuta, O. F. Miller. 
Arca minuta, O. F. Miiller, Prodr. Zool. Dan., 1776, p 247. 
Fabricius, Fauna Grønlandica, 1780, p. 414. 
Leda caudata, Lovén, Ind. Moll. Seand,, 1846, p. 34. 
— minuta, Jeffreys, Brit. Conch., vol. 2, 1863, p. 155, vol. 5, p. 173, PI. 4, fig. 2, Pl. 29, fig. 6. 
G. 0. Sars, Moll. Reg. Arct. Norv., 1878, p. 36. Pl. 5, fig. 2 a—b. 
— caudata, Verril & Bush, Proc. U. S, Nat. Museum, vol. 20, 1898, p. 855, Pl. 82, fig. 1. 
Fragmenter af denne art foreligger fra stat. 257, 160 
fr. Desuden toges den ved stat. 223, 70 fr. Hammerfest 
og Alten. 
Leda minuta 
gaaende art, 
har den samme udbredelse som fore- 
dog gaar den inden Pacifikomraadet helt 
syd til Oregon og Japan. Ved Atlanterhavskysterne har 
den sin sydgrænse ved Fundy Bay, De britiske ger og 
Bælterne. Den bathymetriske udbredelse er 2—200 fy. 
Fossil er den funden i Skandinayien, nordlige Rusiand, 
De britiske ger og Nordamerika. 
There are fragments of this species from Station 257 
(160 fathoms). It was also found at Station 223 ( 
fathoms), Hammerfest, and Alten. 
Leda minuta has the same distribution as the 
foregoing species, but in the Pacific it is found as far 
south as Oregon and Japan. Its southern limit off 
the shores of the Atlantic is at Fundy Bay, the British 
Isles, and the Great and Little Belts. Its bathymetrical 
distribution is from 2 to 200 fathoms. It is found in the 
fossil state in Scandinavia, the north of Russia, the British 
Isles, and North America. ~ 
Nucula tenuis, Montagu. 
Arca tenuis, Montagu, Test. Brit. Suppl., 1808, p, 56, Pl. 29, fig. 1. 
Nucula tenuis, Møller, Ind. Moll. Grønl., 1842, p. 17. 
Findested. Stationerne 267, 326, 336, 357; Rognan, 
Salten, 20 fv. Magdalena Bay, Advent Bay og Norskøerne, 
20—60 fy. Dybde 20—148 fy. 
Nucula tenws, som er almindelig langs hele den 
norske kyst, er en circumpolar att, der er kjendt fra Mid- 
delhavet, Europas vest- og nordkyst, Spitsbergen, Barents- 
havet, Karahavet, Sibiriens ishavskyster, Beringshavet, 
Kamtschatka, Japan, Vancouver, Amerikas nord- og øst- 
kyst indtil Cape Hatteras og Grønland. Den bathymetriske 
udbredelse er 3—1230 fv. Fossil er den kjendt fra Skan- 
dinavien, nordlige Rusland, Spitsbergen, Sibirien, Nord- 
amerika, Italien og De britiske øer. 
Jeffreys, Brit. Conch., vol. 2, 1863, p. 151, Pl. 29, fig. 4. 
G. O. Sars, Moll. Reg. Arct. Norv., 1878, p. 33, Pl. 4, fig. 6 a—b. 
Locality. Stations 267, 326, 336, and 357, Rognan, 
Salten (20 fathoms). Magdalena Bay, Advent Bay, and the 
Norwegian Islands (20—60 fathoms). Depth 20—148 
fathoms. 
Nucula tenuis, which is common all along the Nor- 
wegilan coast, is & circumpolar species that is known in 
the Mediterranean, off the west and north coasts of Europe, 
Spitsbergen, in the Barents Sea, the Kara Sea, off the 
Arctic coast of Siberia, in the Bering Sea, Kamtschatka, 
Japan, Vancouver's Isle, off the north coast of North 
America and the east coast as far south as Cape Hat- 
teras, and in Greenland. Its bathymetrical distribution 
is from 3 to 1230 fathoms. It is found 
Scandinavia, northern Russia, Spitsbergen, Siberia, North 
America, Italy, and the British Isles. 
as a fossil in 
Nucula tumidula, Malm. 
Nucula tumidula, Malm, Forbandl. Skand. Naturforsk. 8de møde, 1860, p. 621. 
Findested. 
Sognefjord, 100 fv. 
Stationerne 1, 79, 253, 255, 267 og 
Dybde 100—650 fy. 
Malm, Goth. K. Vet. Vit. Samh. Ny Tidsskr., vol. 8, 1863, p. 122, Pl. 2, fig. 3. 
G. 0. Sars, Moll. Reg. Arct. Norv., 1878, p. 33, Pl. 4, fig. 5 a—c. 
Locality. 
the Sogne Fjord (100 fathoms). 
Stations 1, 79, 253, 255, and 267, and 
Depth 100—650 fathoms. 
