io6 



I.AMKLUBRANCHIATA. 



East Greenland. 



Here there occurs a comparatively closely 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 Angmagssalik at a 

 depth of 140 fm. The maximum length is 23 mm. — Further, Mobius 1 ) 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 2 ), but I am convinced that his record refers to a form 

 of - /. crenata Gray (cf. .1. crenata var. inflata, p. 117); A. sulcata is perfectly clearly, from the results 

 of the Ingolf-Expedition, a distinctly 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 15' N. L., 22°23' W. L 170— 114 fm. 6 spec. & 24 valves. 



63 t8' - - 21 30' - - 94 - 1 — - 1 — 



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



62°57' - - i9°58' - - 500 - 1 valve. 



63°2i' - - i7°3i' - - 69 - , black sand. 1 — 



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



63 24' - - 17 5' - - 70 - , black sand with stones 1 spec, and 3 valves. 



and shells. 



Thus, taken on the whole, 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""". 



The Faeroes. 

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

 the following places. 



Fundmgsfjord 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. 1 — & 5 — 



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



r '2 1; 4 C 57' - - 144 - , clay and stones. 2 — 



13 miles S. of Myggensesholm 70 - 1 spec. & 9 valves. 



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



zweite Deutsche Nordpolarfahrt in d. Jahreu 1S69 u. 1S70. Wiss. Ergebn., II, 1874, Zoologie, p. 251. 

 isterr. Polarstatios Jan Mayen, Beob.-Ergebn., Ill, 1SS6, p. 71. 



