96 
Trophon truncatus, Strøm. 
Buccinum truncatum, Strom, Norske Vidensk. Selsk. Skr., vol. 4, 1767, p. 369, Pl. 16, fig. 26. 
Trophon clathratus, var. truncata, Jeffreys, Ann. & Mag. Nat. Hist. ser. AL Mk MST jon 325 
— truncatus, G. O. Sars, Moll. Reg. Arct. Norv., 1877, p. 246, Pl. 15, fig. 9, PI. IX, fig. 15. 
Findested. Station 280, 35 fy., station 322, 21 fv, 
Reykjavik 20 fv. og Advent Bay, 20—30 fy. 
Trophon truncatus er kjendt fra Grønland, New Ene- 
land, Britiske øer, Færøerne, Island, Danmark, Skandina- 
vien, Murmankysten, Barentshavet og Sibiriens ishavskyster. 
Den buthymetriske udbredelse er 2—530 fv. Fossil er 
den funden over en større del af Europa. 
Locality. Stations 280 (35 fathoms) and 322 (21 
fathoms), Reykjavik (20 fathoms), and Advent Bay (20— 
30 fathoms). 
Distribution — Greenland, New England, British 
Isles, Faroe Isles, Iceland, Denmark, Scandinavia, Murman 
Coast, Barents Sea, and Arctic shores of Siberia. Bathy- 
metrical distribution 2—3530 fathoms. Fossil in many parts 
of Europe. 
Trophon clathratus, Linné. 
Murex clathratus, Linné, Syst. Nat, ed. 12, 1766, p. 1223. 
Trophon — Jeffreys, Ann. Mag. Nat. Hist., ser. 4, vol. 19, 1877, p. ; 
== — G. O. Sars, Moll. Reg. Arct. Norv., 1878, p. 247, Pl. 15, fig. 
Findested. Station 178 b, 300 fy., station 290, 191 | 
fr., station 312, 656 fv. (semifossilt skal), Sognefjord, 100 | 
fy., Alten, 30 fy. og Hammerfest, 20 fr. Paa de fleste | 
lokaliteter optraadte var. gunner?, Lovén, sammen med den | 
typiske form. | 
Trophon clathratus er en circumpolar art, som er | 
kjendt fra Gronland, Labrador, New England, Nordeuropa 
indtil Danmark og Færøkanalen, Spitsbergen, Frants Jo- 
sefsland, Novaja Semlja, Karahavet, Sibiriens ishavskyster, 
nordvestlige Amerika, Sitka og nordlige Japan. Den ba- 
thymetriske udbredelse er 5—580 fy. Fossil er den funden 
i Nordeuropa, Spitsbergen, Sibirien og nordlige Grønland. 
10, Pl. IX, fig. 14, Pl. XVII, fie. 46. 
Locality. Stations 173 b (300 fathoms), 290 (191 
fathoms) and 312 (656 fathoms; half-fossilised shell), Sogne 
Fjord (100 fathoms), Alten (30 fathoms), and Hammerfest 
(20 fathoms). In most of the localities var. gunneri, Lovén, 
appeared together with the typical form. 
T. clathratus is a circumpolar species, with distribu- 
tion — Greenland, Labrador, New England, Northern 
Europe down to Denmark and the Faroe Channel, Spits- 
bergen, Franz Josef Land, Novaja Semlja, Kara Sea, Arc- 
tic shores of Siberia, north-western America, Sitka, and 
northern Japan. Bathymetrical distribution 5—580 fathoms. 
Fossil in Northern Europe, Spitsbergen, Siberia, and north 
Greenland. 
Trophon clathratus, var. clavatus, G. O. Sars. 
Trophon clavatus, G. O. Sars, Moll. Reg. Arct. Norv., 1878, p. 249, Pl. 15, fig. 12, Pl. 28, fig. 14, Pl. IX, fig. 17. 
Findested. Station 273, 197 fv. og Alten, 30 fv. 
Exemplaret fra station 275 svarer ganske til Sars's teg- | 
ninger af clavatus, exemplarerne fra Alten viser derimod 
overgange til trophon clathratus, vi maa derfor anse clavatus | 
som en yarictet af denne. Den er kun kjendt fra Norges 
vestkyst, hvor den forekommer sparsom op til Lofoten, 120 
— 300 fy. 
Norman, Ann. Mag. Nat. Hist. ser. 6, vol. 12, 1893, p. 356. 
Locality. Station 273 (197 fathoms) and Alten (30 
fathoms). The specimen from Station 273 quite corresponds 
with Sars’s drawings of clavatus, whereas the specimens 
from Alten exhibit transitions to T. clathratus. We must 
therefore regard clavatus as a variety of the latter. It 
has been found only on the west coast of Norway, where 
it occurs sparsely up to Lofoten (120—300 fathoms). 
