DD 
Nn 
NILS ODHNER, NORTHERN AND ARCTIC INVERTEBRATES. V. PROSOBRANCHIA. 1 DIOTOCARDIA. 
Geographieal and bathymetrieal distribution. 
[ap. = height of aperture; br. = breadth; d. = diameter; h. = heigth ; I. =length ; sh(s).= 
shell(s); sp(s). =living specimens; Mus. G. = Museum at Gothenburg; Mus. L. =Mu- 
seum at Lund; Mus. U.=Museum at Uppsalal. 
Acmeea testudinalis (MÖLLER 1776). 
12115 CI fasa l 3 12 ie 
Habitat: 
West coast of Sweden: Hittarp, Helsingborg, Skåne, 2 sps, max. 1. 8.9 (Lönnberg 
"te 1902); Kullen (LirrJEBORG 1852") 1 sh, I. 15.5; br. 11.6; hh. 52; apex (Mus Ul) 
— Kattegatt: Lilla Middelgrund, 10 fms, sand, stones, 2 sps, max. 1. 9.5 (Gunhild Exp. 
''/7 1878) — Bohuslän: Marstrandsfjorden, 10 fms, 1 sp., 1. 11 (Sept. 1864); Gull- 
marn, 1 Sp... I. 18 (Lovén); D:o 4 sps, max. 1 20:55 br. 158: hb C6EfandPRIsEnbr: 
15.3; h. 7.6 (Mus. U.); D:o, Strömmarna, 10 fms, stones, 1 sp., 1. 10.4 (N. Odhner !'/c 
1907); D:o, Smalsund, Zostera, and Blåbergsholmen, algae (THÉRL 1907); Väderöarna, 
the coral reef, 1 sp., 1. 8.8 (Zool. St. 1890); Sydkoster, 15—20 fms, rocks, 3 sps, 
max. 1. 21.5 (Eisen & Stuxberg "/ 1871); Strömstadsfjärden, 1 sp., 1. 15.5 (Hanson 
”/8 1881); Svinesund, 30—70 fms, stony mud, 1 sp., 1. 7.2 (Lindahl 1871.) — Bohuslän 
without definite locality, many sps, max. 1. 22 (Lovén & B. Fries; PI. I fig. 1); 
I sp. of aberrant breadth: 1. 18; br. 16, h. 6. 
South and West coast of Norway: Dröbak, 5—98 fms, stones, Fucus, 8 sps, 
max. 1. 9.8 (Lovén); Christianiafjorden, 2 sps, max. 1. 9 (Asbjörnsen); Sörfjorden, Har- 
danger, 45 fms, stones, 1 sp., 1. 9.6 (Bovallius 1880); Hitterö, 20—30 fms, 1 sh., 1. 
12 (Öberg 1869); Bergen, 7 sps, max. 1. 15.9 (Sars); Trondhjemsfjorden, 1 sp., 1. 13.7 
(Koren); D:o, Rissen, 1—10 m, mud, 1 sp., 1. 9.5 (Östergren "”/ 1902); Norway, 
without definite locality (>»mare norvegicum>), many sps, max. l. 19.2 (Marklin); D:o, 
many sps, max. 1. 10.2 (Diäben). 
Northern Norway: Tromsö, ebb, 1 sp., 1. 13.3 (Malmgren 1864); Karlsö, 30 fms, 
shells, 1 sp., 1. 12.7 (""/e 1864); Kjosenfjord, ebb, algae, stones, many sps, max. I. 22.6 
1 Acmeea testudinalis, mentioned by Aurivillius, 1887 (from Bebring Island) includes A. pelta and patina, 
which confer. 
