118 NILS ODHNER, NORTHERN AND ARCTIC INVERTEBRATES. III. OPISTHOBRANCHIA ETC. 



Fig. 



1. 



Fig- 



2. 



Fig. 



3. 



Fig. 



4 (32 a). 



Fig. 



5 (32 b). 



Fig. 



6 (13). 



Fig. 



7 (14). 



Fig. 



8. 



Fig. 



9. 



Fig. 



10 (23). 



Fig. 



U (2.5). 



Fig. 



12. 



Fig. 



13 (25). 



Fig. 



14. 



Fig. 



15 (20). 



Fig. 



16 (22). 



Fig. 



17 (22 a). 



Fig. 



18 (33). 



Fig. 



19 (43). 



Fig. 



20 (48 d). 



Fig. 



21 (39). 



Fig. 



22 (48). 



Fig. 



23 (40). 



Fig. 



24 (46). 



Fig. 



25. 



Fig. 



26 (47). 



Fig. 



27 (48 o). 



Fig. 



28 (38). 



Fig. 



29 (37). 



Fig. 



30 (35). 



Fig. 



31 (35 a). 



Fig. 



32 (35 b). 



Fig. 



33 (34 b). 



Fig. 



34 (34 a). 



Plate III. 



The numerals in parentheses refer to Ind. Moll. Scand. (Loven 1846). 



Philine aperta Linné. 



Pliiline scabra Miiller. 



Philine pruinoaa Clarlj. 



Tritonia Hombergi Cuviei'. 



Tritonia pl^beia Jolmston. 



Arohidoris tuberculata Cnvier. 



Cadlina obvelata Miiller. 



Tiie same from the under side. 



The same from the left. 



Triopa clavigera Miiller. 



Polycera quadrilineata Miiller (= cornnta Abildgaard). 



The same from the left. 



Polj'cera quadrilineata Miiller (= var. a in .Jeffreys 1869). 



The same from the left. 



Goniodoris nodosa Montagu. 



Ancula cristata Ålder. 



Tlie same. 



Dendronotus frondosus Ascaniua. 



Cratena angulata Ålder & Hancock (.= Aeolis obtusalis Ålder & Hancock of Lovon). 



Cratena viridis Forbes (under Aeolis bellula. in Loven). 



Galvina exigua Ålder & Hancock (= Tergipes lacinulatus Graelin of Loven). 



Cratena conoinna Ålder cfc Hancock (under Aeolis bellula in Loven). 



Capellinia? fustifera Loven (Tergipes). 



Favorinu.s albus Ålder & Hancock. 



The same from the right. 



Coryphella lineata Loven. 



Faeelina Drummondi Thompson (under Aeolis bellula in Loven). 



Hermaea dendritica Ålder & Hancock (= venosa Loven). 



Hermaea bifida Montaeu. 



Hero formosa Loven. 



The same. 



The same. 



Doto fragilis Forbes. 



The same. 



Trvckt den 1 februari 1907. 



Uppsala 1907. Alnmvist & WikselLs Bnlttryckeri-A.-B. 



