LAMELLIBRANCHIATA. 



Faxafjordr, ca. 3 miles N. 59 W. from 



Grotta lighthouse . . 25 fm. 8 valves. 



— , off Kollafjordr . . 8 — ii'/a - , mud and stones. 5 spec, and 2 valves. 



— , mouth of Kolla- 



fjordr 9Y2 — II - , fine, black sand and mud. 12 valves. 



— , off Kollafjordr .... 10 - 17 — 



— , Keflavik 15 — 16 - , fine, black sand. 8 — 



— , ca. 2 miles N. E. of Kefla- 



vik 1972 — 20Y2 - 10 — 



— , I mile W. of Helgasker 



Vager 13 — 16 - 4 — 



— , I mile W. of Helgasker 



Vager 1472 - i — (on Pcctcii islaiidiciis). 



— , E. of Videy .... 9 — 10 - , fine sand and mud. 5 — 



— , 7 miles N. N. E. of Ska- 



gens light . . . 17—2072 - , sand and sheiks. i — 



Reykjavik, on Laiiiinaria driven on land. ca. 80 spec. 



— , at low-water mark i spec. 



— i'/2 fm., stony bottom. 9 — 



— I'A - . gravel — i — 



— 3 — 3 - , on Laininaria hypcrborca. 15 — 



— 8 - 2 — 



— (Engey) 7 — 8'/2 - , mud. i spec, and 3 valves. 



Hafnarfjordr, on the beach 10 — 



— 4 fm., sand and mud. i valve. 



— 25 - , fine, black sand and mud. 10 — 



Skagi 21 - 13 — 



The largest specimen is 22 '""' long. A number of specimens belong to the variety aciilcaia. 



South Iceland: 



63°i5'N.L., 22°23'W.L. . . . 170— 114 fm. 



63°i8' - , 2i>' - 94 - 



63°3o' - , 2o°i4' — 42 - 



63°o5' - , 20° 7' — 293 - 



Vestmannaeyjar, beach 



— 10 fm. 



— 15-20 - 



— 30 - , shell-gravel. 



— 49 - , clay with a little mud. 



— Heimaey, beach 



62°57'N.L., i9°58'W.L 500 fm. 



