90 NILS ODHNEE, KORTHBRN AND ARCTIC INVBRTEBBATES. III. OPISTHOBRANCHIA ETC. 



Doto crassicornis M. Särs 1870. 

 Habitat: 



Bohuslän: Kosterfjorden 20—40 fms (July 1895, Aurivillius) 1 sp. 



General distribution : 



Norway, Dröbak, 50-60 fms (M. Särs 1870). — Bergen, 100 fms (Friele 1876) 



Pleurophyllidia Lovéni Bergh 1860. 



Pl. II figs. 21—22. 



Habitat: 



West coast of Sweden : Skåne, Skelderviken, 13 fms, clay and shells (July 1878, 

 Théel & Trybom) 1 sp. ; between Kullen and Vinga skär, 14 V2 fms, clay {^V? 1902, 

 Lönnberg) 3 sps. ; E. of Väderön, 14 fras, clay and shells (^Z? 1902 Lönnberg) 1 sp. ; 

 MöUe läge, Kullen (Loven 1832) 1 sp. ; D:o 1 sp. (Mus. U.; Lilljeborg 1854).— Bo- 

 huslän: >)Gullmarn (Loven) 1 sp. ; D:o 22—24 fms, 2 sps. (Mus. G.); D:o (1895 and 

 July 1898) 1 and 3 sps.; D:o outside Långegaps ände, 32 m, mud (Aug. 1902) 1 sp.; 

 D:o, Bökevik, 16 fms (Loven) 1 sp. ; ") Dyngö, Fjällbacka, 15 fms, clay (Goés) 2 sps. 



General distribution: 



Norway: Kristianiaf jorden, 10—15 fms (Asbjörnsen 1854). — Zealand, Den- 

 mark (Mörch 1871). — British coasts (Jeffreys 1869). — Depths 7—40 fms. 



Pleuroleura Walteri Krause 1892. 

 Habitat: 



Spitzbergen: Waygat Islands 72° 20' N. 19° E., 30 fms rocks ("./s 1861, Malm- 

 gren) 1 sp. (L. = 23" mm.). 



East Greenland: Mackenzie Ba}^ 100 m, mud. 2 sps. (1900; Hägg 1905). 



General distribution : 



Spitzbergen, 55 fms (Krause 1892); D:o 23 fms (Knipowitsch 1902). 



Hermeea bifida (Montagu 1815). 



Pl. III fig. 29. 

 Specimen löst. 



Distribution: Bolmslän, algffi (Loven 1846). — British coasts (Jeffrej-s 1869). — France (Vayssiére 

 1891). — Portugal (Nobre 1905). — Mediterranean (Carus 1889). 



