6 ARKIV FÖR ZOOLOGI. BAND 7. N:0 4. 



sps. — D:o, low ebb down to 2 fms, Laminarise, numerous, 

 max. d. 4,8 — Hofsos, 40 fms, clay, 1 sp. (f) d. 4 — Raufar- 

 hofn, 35 — 40 fms, 1 sp. (f), d. 4,5. — Stated by Jeffreys 

 from Iceland. 



Margarita Valilii Möller. 

 Öfjord, 1 sp., height 3 mm. — New to Iceland. 



Margarita olivacea (Brown). 



Arnanes, 25 fms, 1 sp., height 4 — Bjarnanes, 15 — 30 

 fms, corals, 1 sp., h. 4,6 — Öfjord, 1 sp. (f), h. 4. — New 

 to Iceland. 



Margarita obscura Couthouy var. islaiidiea n. 



Fig. 29—32. 



Hofsos, 40 fms, clay, among M. groenlandica, 1 sp. (f, born). 



— This variety differs from the type by a somewhat wider 

 umbilicus with rounded margins and by feebler, closer spiral 

 keels. Whorls 4 Vi- The shell is not worn; it is solid and 

 of a light olive brown colom\ It resembles M. bella by the 

 wide umbilicus and the rounded (not keeled) basal part of 

 the body w^horl, but it lacks the longitudinal sculpture of that 

 species. Measurements in mm: height of the shell 4,5, of the 

 aperture 2,9; diameter of the shell 5,8. 



The species, as well as the variety, is new to Iceland. 



Telutina laevigata (Pennant). 



Berufjord, 9—30 fms, corals and rocks, many sps., max. 

 height 12,5. 



Marsenia microniphala Bergh. 



Berufjord, 15—30 fms, 1 sp., 1. of the animal ca 10 mm. 



— New^ to Iceland. 



Amauropsis islaiulica (Gmelijn). 



Berufjord, 40 fms, sand wdth shells, 9 sps., most of them 

 dead, max. height 11,2 — D:o, 15—30 fms, 1. sp., h. 5,6, — 

 Stated by Jeffreys from Iceland. 



