Crustace a. 
Cirripedia. 
Baianus porcatus da Costa. Arendal, Romsö, Sprogö. 
Baianus crenatus Bruguierc. (Auf Mytilus edulis.) Arendal. 
Scalpellum vulgare Leach. Arendal. 
Copepoda. 
Temora longicornis Müll. An der Oberfläche. Arendal. 
Cladocera. 
Podon polyphemoides Leuck. Oberfläche. Kattegat. 
Isopoda. 
Idotea tricuspidata Desm. Arendal, Känsö. 
Amphipocla. 
Caprella linearis L. Grosser Belt. Ampelisca Gaimardii Kröy. Arendal, Mar- 
Protella phasma Mont. Arendal. Strand, Romsö. 
Gammarus longimanus Leach. Arendal. 
Cumacea. 
Cuma nasica Kröy. 17Y2 Meile N von Skagen, 1 10 Faden. 
Pandalus annulicornis Leach. 
Grosser Belt. 
Hippolyte spinus Leach. Arendal. 
Palaemon squilla L. Arendal. Känsö. 
Ponto philus spin os us Leach. Arendal. 
Crangon echinulatus Sars. Arendal. 
Crangon vulgaris Fab. Arendal, Romsö. 
Calocaris Macandreae Bell. Arendal. 
Galathea squamifera Leach. Arendal. 
Galathea strigosa Fab. Arendal. 
Pagurus bernhardus L. Arendal. Känsö, Romsö. 
Ebalia Cranchii Leach. Arendal. 
Inachus Scorpio Fab. (Mit Eiern unter dem 
Hinterkörper.) Arendal, Romsö. 
Stenorhynchus ro stratus L. Arendal, gros- 
ser Belt. 
Eurynome aspera Leach. Arendal. 
Hyas aranea L. Arendal, Känsö. 
Port unus depurator L. Arendal. 
Portunus arcuatus Leach. Arendal. 
Cancer pagurus L. Arendal. 
Decapoda. 
Arendal, 
Pycnogonida. 
Nymphon grossipes Müll. Arendal. 
Pycnogonum littoralc Ström. Arendal, Sprogö. 
M o l'l usca. 
Brachiopoda. 
Terebratula caput serpentis L. Arendal. 
Lamellibranchia. 
Anomia ephippium L. Arendal 45 Faden. 
Ostrea edulis L. Arendal. 
Pecten varius L. Arendal. 
Pecten tigrinus Müll. Arendal. 
Pectcn Testae Bivona. Arendal. 
Pecten septem radiatus Müll. Arendal. 
Lima Loscombii Sow. Arendal. 
Mytilus modiolus L. Romsö, O von Samsö 
27 Faden, grosser Belt. 
Mytilus edulis L. Arendal. 
Modiolaria discors L. Arendal, Romsö. 
Modiolaria marmorata Forb. Arendal. 
Modiolaria nigra Gray. Romsö: 
Nucula sulcata Bronn. Arendal, Marstrand. 
Nucula tenuis Mont. N von Skagen 1 10 Faden. 
Le da pernula Müll. Romsö. 
Lucina spinifera Mont. Arendal. 
Axinus ferruginosus Forb. Skagen. 
Axinus flexuosus Mont. Arendal, Skagen 110 
Faden. 
Axinus Sarsii Phil. Arendal 50 Faden. 
Cardium norvegicum Spengl. Arendal. 
Cardium minimum Phil. Arendal. 
Cardium fasciatum Mont. Arendal. 
Cardium echinatum L. Arendal. 
Cyprina. islandica L. Arendal, Helsingör 20 
Faden. 
Astarte sulcata da Costa. Arendal, Romsö. 
Astarte compressa Mont, Romsö. 
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