jq5 lamellibranchiata. 



East Greenland. 



Here there occurs a comparatively closeh" ribbed form of A. sulcata, which has been taken off 

 the south-eastern ("warm") part by Nordenskj old's Expedition (1883) at 130 fm. depth and by the 

 Ingolf-Expedition at St. 94 in 204 fm., as also by the Amdrup Expedition off Angraagssalik at a 

 depth of 140 fm. The maximum length is 23 mm. — Further, INIobius'l records it from north-eastern 

 Greenland, but I feel certain that this record is due to some mistake. 



[Jan May en |. 

 Becher records the species from here-), but I am convinced that his record refers to a form 

 of A. crenafa Gray (cf. A. crenata var. inflata, p. 117); A. sulcata is perfectly clearly, from the results 

 of the lugolf-Expedition, a distinctl} warm-water form. 



Iceland. 



In addition to the stations mentioned of the Ingolf-Expedition, A. sulcata has later been taken 

 at the following places: 



63°i5' N. L., 22°23' W. L 170— 114 fm. 6 spec. S: 24 valves. 



63°i8' - - 21'' 30' - - 94 - I — - I — 



63°05' - - 20° 7' - - 293 - 15 valves. 



62°57' - - i9°58' - - 500 - I valve. 



63°2i' - - i7°3i' - - 69 - , black sand. i — 



63°2i' - - I7°i5' - - 58 " 1 sand, stones, shell-gravel. 3 spec, and 12 valves. 



63°24' - - 17° 5' - - 70 - , black sand with stones i spec, and 3 valves. 



and shells. 



Thus, taken on the \^\\o\&, A. sulcata may be said to be fairly common off western and southern 

 Iceland ; living specimens have been taken at depths of 58 — 310 fm., but dead shells even at a depth 

 of 633 fm. The maximum length is 26 ' 



, mm 



The Faeroes. 



From the investigations of recent years the Zoological Museum has obtained A. sulcata from 

 the following places. 



Fundingsfjord 12—20 fm., coarse sand and clay. 9 spec. & 34 valves. 



Nolso, deep hole at north end ca. 100 - 4 — & 6 — 



62°29' N. L,., 5''i7' W. L 160 - , stones and sand. i — & 5 — 



62°29' - - 4''52' - - 112 - , sand. 2 spec. 



62°i7'/2' - - 4°57' - - 144 - , clay and stones. 2 — 



13 miles S. of Myggensesholm 70 - i spec. & 9 valves. 



S. W. of Myggenses 135 - 18 — S: 165 - 



1) Die zweite Deutsche Nordpolarfabrt in d. Jahreu 1869 11. 1870. Wiss. Ergebn., 11, 1874, Zoologie, p. 251. 



2) Die Osterr. Polarstation Jan Mayen, Beob.-Ergebn., Ill, iSS6, p. 71. 



