76 NILS OJJHNEB, NORTHERN AND ARCTIC INVERTEBRATES. III. OPISTHOBRÄNCHIA ETC. 



3 sps. (Mus. G.). — Dyngö, Fjällbacka (Hanson) 1 sp. — Väderöarna, coral bottom, 

 40 — 50 fms (July 1887) 1 sp. — Kosterfjorden (July 1895, Aurivillius) 1 sp. 



General distribution: 



Norway : the west coast 5—20 fms (G. O. Särs 1878). — British coasts (Jeffreys 

 1869). — Sweden: ? Kullen (Lilljeborg 1851). — Denmark (Mörch 1871). — Heligo- 

 land (Heincke 1894). — France (Vayssiére 1901). Depths to 50 fms. 



Goniodoris Danielsseni Friele & Hansen 1876. 



Distribution: J3t'rgeii, Norway, -!0 — 30 fms (Friele c>^ Haiiseu ly7(i). 



Idalia elegans Leuckart 1828. 



IMslribiition : Ivullen, Sweden (!Mörcli 1871). — Daiiisli coast (Mörcli 1S71). — IJritish coasts {.Jefireys 

 18(50). — France (Vayssicro 1!)01). — Meditcrniiican aml Adi-iutic (Carns 18891. Deptliv 15 fius (Jeftreys). 



Idalia pulchella Ålder & Hancock 1855. 

 Habitat : 



Flatholmen, Gullmarn, Bohuslän (Loven) 4 sps. 



tileneral distribution : 



Norway: the west coast (Aalesund); Lofoten 200 fms (G. O. Särs 1878); Tromsö 

 (Krause 1895). — British coasts (Jeffreys 1869). - Massachusetts (Verrill 1882). 



var. fusca n. n. 



1'1. II %. ut. 



Habitat : 



Gullmarn, Bohuslän (Loven) 1 sp. (= I. cirrigera Phil. of Loven 1846). 



Idalia aspersa Ålder & Hancock 1845'. 

 Habitat: 

 Väderöarna, Bohuslän, 6 fms, rocks (Goés) 2 sps. 



CJeneral distribution : 



Norway: Hammerfest (Friele & Grieg 1901). — British and Irish Coasts (Jeff- 

 reys 1869). — France (Vayssiére 1901). 



