XV 



5. Marsenia pellucida ( Verrill.) . 



— var. Gouldii, Verrill 



6. — Stearnisii (Dali) . . 



7. — orbiculata (Dali) . . 



8. — Rangii, Bgh. . . . 



9. — minuta (H. Adams) . 



10. — gemma, Bgh. n. sp. 



11. — cabulana, Bgh. n. sp. 



12. — affiiiis, Bgli. II. sp. . 



13. — indecora, Bgh. n. sp. 



14. — isabellina, Bgh n. sp. 



15. — Diegoensis (Dali) . . 



16. — ophione (Gray) . . 



17. — Kerguelenensis (Studer) 



18. — dubia, Bgh. n. sp. . 

 119. — depressa, Wood . . 



II. Chelyonotus (Swains.), Bergk 



1. Chelyonotus Seniperi, Bgh. n. sp. 



2. — toBgauus (Quoy etGaim.) 



— var. maiiritiana, Bgh. . 



— var. Berghi, Desh. . . 



3. — tuberosus (Stimpson) 



4. — ? punctatu.s (Stimpson) 



III. Marseille IIa, Bei-i^-h. N. gen. 

 Marseniella borealis, Bgli. n. sp. . . 



IV. Marseniopsis, Bcrgh. N. gen 



1. Marseniopsis pacifiia, Bgh. n. sp. 



2. — Murrayi, Bgh. n. sp 



V. Marsenina, Gray .... 



1. Marsenina prodita (Loven) . . 



2. — glabra (Couth.) . . 



3. — ampla, Verrill. . . 



4. — groenlandica (Möller) 



5. — rhombica (Dali) . . 



6. — Dalli, Bgh. n. sp. . 



VI. Onchidiopsis, Beck, Bergh 



1. Onchidiopsis groenlandica, Bgh. 



2. — glacialis (M. Sars) 



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III. Anatomische Abtheilung. 



