odhner: marine mollusca of iceland. 17 



Dacrydiiim vitreum (Möller). 

 Berufjord, 40 fms, 1 sp., 1. 3,2 — New to Iceland. 



Crenella decussata (Montagu). 



Berufjord, 25 — 40 fms, sand with sheJls, many sps.. max. 

 1. 4 — Hofsos, 40 fms, clay, 5 sps., max. 1. 3,2 — Raufar- 

 hofn, 35 — 40 fms, numerons sps., max. 1. 3,8 — Thistilfjord, 

 10 — 16 fms, sand, clay, 4 sps., max. 1. 4 — Öfjord, 2 sps., 

 max. 1. 3. — Stated by Jeffreys from Iceland. — Torell 1859. 



Modiolaria laevigata (Gray). 



Arnanes, 25 fms, 1 sp., 1. 15,2 — Berufjord, 9—15 fms, 

 rocks, many sps., max. 1. 48 (t, but of a fresh appearance). 



var. substriata (Gray). 



Berufjord, 3 fms, ebb, 1 sp., 1. 7 — D:o, 9 — 15 fms, 5 

 >ps., max. 1. 7,3. — Torell 1859. 



Modiolaria iiigra (Gray). 



Berufjord, 25 fms, 17 sps., max. 1. 10 — Thistilfjord, 10 

 -16 fms, sand, clay, 6 sps., max. 1. 10;5. — Stated by Jeff- 

 reys from Iceland. 



Mytilus ediilis Linné. 



Berufjord, in the surface of the water, 2 sps., max. 1. 50 

 (t); T>:o, 9—13 fms, rocks, 1 sp., 1. 40 — Olofsfjords vatn, 

 numerous sps. (t), max. 1. 43. 



Nucula tenuis (Montagu). 



Arnanes, 25 fms, 5 sps., max. 1. 10 — Berufjord, 40 fms, 

 clay, numerous sps., max. 1. 10,5; D:o, 9 — 33 fms, 5 sps. (f), 

 max. 1. 13,2 — Hofsos, 40 fms, clay, numerous sps., max. 1. 

 10,5 — Siglafjord, 12 fms, 1 sp., 1.' 8 — Thistilfjord, 10—16 

 fms, sand, clay, 4 sps., max. 1. 5 — Öfjord, clay, numerous 

 sps., max. 1. 11,3. 



Arkiv för zoologi. Band 7. A.-o 4. 2 



