KUNGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 41. N.O 4. 71 



Polycera quadrilineata (IMuller 1776). 



Pl. III tigs. 11— Ii. 

 Habitat : 



The Baltic: Kiel (Möbius) 2 sps. 



West coast of Sweden: Laholmsbukten, Halland, 8 fms, härd clay ("'e 1902, 

 Lönnberg) 1 sp. — Bohuslän: ^) GuUmarn c. 85 sps.; D:o 60 — 70 m (June 1902) 1 sp. ; 

 D:o among. Laminarise (winter 1895, Aurivillius) 10 sps. ; D:o Gåsö (Vr, 1905) 4 sps. ; 

 D:o Gåsöfjord, 5 — 10 fms (May 1895, AuriviUius) 1 sp. ; ") Stigf jorden c. 50 sps.; 

 ')N. of Styrsö 10—20 fms (Aug! 1889) c. 15 sps.: ') Väderöarna (1887, Asklund) 10 

 sps. ; ') Dyngö, Fjällbacka c. 30 sps.; ') W. of Koster, inside the rocks, 2—5 fms (Ljung- 

 man) 20 sps.; ') Skarfön, Strömstad (1890, Hanson) c. 20 sps. 



Norway: 5 sps. (Diiben) without definite locality; Trondhjemsf jorden (Koren) 

 2 sps. ; Bergen, Glsesveer 10 fms, 1 sp. (Mus. U.). 



General (listribiition : 



Norway: Lofoten 10 — 20 fms; the whole west and south coast (G. O. Särs 1878). 

 — British coasts (Jeffreys 1869). — Norwa-y: Christiansund (Lilljeborg 1851). — Den- 

 mark (Mörch 1871). — Kiel (Meyer & Möbius 1865). — Heligoland (Metzger & Meyer 

 1875, Heincke 1894). — Holland and Belgium (Maitland 1897). — France (Vayssiére 

 1901). — Portugal (Nobre 1905). — Mediterranean and Adriatic (Carus 1889). Depths 

 to 70 m. Algse. 



Doridunculus echinulatus G. O. Särs 1878. 



Distrihiitioii: RisvaT. Lofoten. 80—100 fms ((r. O. Särs 1S78). 



Doridunculus pentabranchus n. sp. 



Pl. I tigs. 22 — 23. 



Habitat: 



Skagerrack 58° 2' N. 9° 4' E., 335 fms, fine brown clay ('Vt 1879, Gunh. Exp.) 

 1 sp. with trawl. 



Acanthodoris pilosa (Mijller 1776). 



Pl. II figs. 13-- 15. 

 Habitat: 



The Baltic: Kiel (Möbius) 1 sp. 



West coast of Sweden: Skåne: Kullen (Lilljeborg) 1 sp. ; between Kullen and 

 Väderön, 13 V^ fms, sbells ('V- 1902 Lönnberg) 2 sps. ; between Kullen and Vinga skär, 

 14 fms, shells (Vt 1902, Lönnberg) 1 sp. : between Torekov and Arilds läge, 14 fms, 



