108 



NILS ODHNER, NORTHERN AND ARCTIC INVERTBBRATBS. III. OPISTHOBRANCHIA ETC. 



Index. 



The iiames in parentheses show the genera, under which the species are described- Species with an asterisk 

 (*) are figured. 



Page. 



Abranchia 9 



abyssicola, Cuthonella, Bergh 1884 29, 80 



Acantliodoris, Gray 1850 " 23 



Acera, MiiUer 1776 . . ■ 14 



Aceridse 7, 14 



Acta3on, Montfort 1810 10 



Actseonia, Quatrefages 1844 37 



ActaeonidEe 7, 10 



acuminata, Volvula (Bulla), Bruguiére 1792 . . 11, 45 

 acutiuscula, Lamellidoris? (Doris), Möller 1842 . 25, 75 



Adalaria, Bergh 1879 23, 24 



Aegires, Loven 1844 21 



Aeolidia, Cuvier 1817 28 



Aeolididee 9, 26 



Aeolidiella. Bergh 1874 a 26, 28 



Aeolidoidea 9 



Aeolis, Cuvier 1802 ' .... 26, 28 



alba, CyUchna (Volvaria), Brown 1827 12, 48 



» Tritonia, Ålder & Hancock 1855 17, 62 



Alberti, Amphorina, Quatrefages 1844 30, 81 



albicans, Forestia (Calma), Friele & Hansen 1876 30, 80 



* albus, Favorinus (Eolis), Ålder & Hancock 1844a 33, 87 



Alderia, Alknan 1844 36 



Aldisa, Bergh 1878 19, 20 



Amphisphyra, Loven 1846 13 



Amphorina, Qviatrefages 1844 27, 30 



Anaspidea 8 



Ancula, Loven 1846 23, 26 



* angulata, Cratena (Eolis), Ålder & Hancock 1844a 29, 79 



» Philine, Jeffreys 1867 15, 59 



Antiopa, Ålder & Hancock 1848 27, 34 



* aperta, Philine (Bulla), Linné 1766 14, 55 



Aplysia, Linné 1766 16 



Aplysiidje 8, 16 



Aplysoidea 8 



* arborescens, Dendronotus (Doris), Muller 1776 . 19 

 Archidoris, Bergh 1878 19, 20 



arctica, Limacina (Argonauta), Fabricius 1780 • 38 



Ascoglossa 9 



aspera, Lamellidoris (Doris), Ålder & Hancock 



1842 24, 74 



aspersa, Idalia, Ålder & Hancock 1845 a . . . . 25, 76 



Page. 



Atthila, Bergh 1899 18 



Atthilid» 8, 18 



atypica, Chlamylla (Goniteolis). Bergh 1899 . . 33, 87 



Atys, Montfort 1810 11, 12 



aurantiaca, Cuthona (Eolis), Ålder & Hancock 



1842 28, 78 



auriculata, Facelina (Doris), Miiller 1806 . . .34, 88 



balea, Spirialis (Limacina), Möller 1841 . . . . 39, 93 



Bathydoris, Bergh 1884 19, 20 



Berghi, Cuthonella, Friele 1902 29, 80 



* bifida, Hermsea (Doris), Montagu 1815 .... 36, 90 

 bilamellata, Lamellidoris (Doris), Linné 1766 . 24, 73 

 borealis, Chlamylla, Bergh 1886 33, 86 



» Clio, Bruguiére 1792 39 



bostoniensis, Coryphella, Bergh 1864 32, 84 



branchialis, Favorinus (Doris), Muller 1806 . . 33, 87 



Bulla Cranchii • 12 



* bullata, Acera, Miiller 1776 14, 55 



bviUifer, Tergipes, Loven 184G 36, 91 



BuUoidea ; . . . . 7 



Cadlina, Bergh 1878 20 



Campaspe, Bergh 1863 18 



Candiella, Gray 1857 18 



Capellinia, Trinchese 1874 27, 30 



capitata, Limapontia (Planaria), MiiUer 1776 . • 37, 92 



catena, Philine (Bulla), Montagu 1803 15, 58 



Cavolinia, Abildgaard 1791 39 



Cavoliniidai ■ 38, 39 



Cephalaspidea '. * 7 



Chlamylla, Bergh 1886 . . . : 27, 33 



cingulata. Galvina (Eolis), Ålder & Hancock 1842 31, 82 



» Philine, G. O. Särs 1878 15, 57 



* cirrigera, Idalia, Philippi of Loven 1846 .... 25 



Cirrobranchia 9 



Cladohepatica 9 



* elavigera, Triopa (Doris), Miiller 1776 22, 69 



Cleodora, Péron & Lesueur 1810 39 



Clio, Browne 1756 39 



Clione. Pallas 1780 39 



Clionidce 38, 39 



