88 N. ODHNER, NORTHERN AND ARCTIC INVERTEBRATES. VI. PROSOBRANCHIA. 2 SEMIPROBOSCIDIFERA. 



Fig. 38. The same, Kristineberg, Gullmarn, one sp., moderately ribbed. X 2. 

 Fig. 39. The same, Kristineberg, Gullmarn, one sp., feebly ribbed. X 2. 

 Fig. 40. The same, Bergen, Norway (Särs), one sp., 1. 11.2. X 2. 



Plate 5. 



Figs. 1—34 (Radulaj X 100). 



Fig. 1. Onchidiopsis groenlandica Bergh, South Cape, Spitzbergen, posterior end of the foot. X 1.5. 



Fig. 2. O. latissima n. sp., Mossel Bay, Spitzbergen, the same. X 1.5. 



Fig. 3. O. glacialis (M. Särs), E. Greenland, the same. X 1.5. 



Fig. 4. O. latissima n. sp., penis, outer side seen from behind, sp. = Fig. 2. X 2. 



Fig. 5. O. glacialis (M. Särs), penis seen from behind, sp. = Fig. 3. X 2. 



Fig. 6. O. groenlandica Bergh, penis seen from behind, sp. = Fig. 1. X 2. 



Fig. 7. Natica clausa Broderip & Sowerby, Vega Exp. St. 40, sh. h. 24.5. 



Fig. 8. The same, Cape Mitra, Spitzbergen, sh. h. 19.3. 



Fig. 9. The same, Finmark (Sparre Schneider), sh. h. 17.5 (cfr. Pl. 3, Fig. 17). 



Fig. 10. The same, Ice Fiord (1908), St. 127, sh. h. 12.5 (cfr Ph 3, Fig. 7). 



Fig. 11. The same, Ice Fiord (1908), St. 92, sh. h. 11.2 (cfr. Pl. 3, Fig. 8). 



Fig. 12. The same, Ice Fiord (1908), St. 41, sh. h. 11 (cfr. Pl. 3, Fig. 9). 



Fig. 13. The same, King Charles Land, sh. h. 9.8. 



Fig. 14. The same, Ramsö, Bohuslän, sh. h. 9.6. 



Fig. 15. Natica bathybii Friele, var. oblonga, E. Greenland, sh. h. 15.8. 



Fig. 16. Lvmatia pallida (Broderip & Sowerby), Hallands Väderö — Kiillen, sh. h. 18.4. 



Fig. 17. The same, Mossel Bay, 9 fms, sh. h. 16.5. 



Fig. 18. The same, E. Greenland, sh. h. 12.5 (cfr Pl. 4, Fig. 8). 



Fig. 19. Limatia tenuistriata (Dautzenberg & Fischer), Advent Bay (1908), sh. h. 27. 



Fig. 20. L. nitida (Donovan), Gåsöfjord, Gullmarn, sh. h. 12. 



Fig. 21. L. Montagui (Forbes), Vcäderöarna, 100 fms (Loven), sh. h. 10. 



Fig. 22. Velutina velutina (Miiller), Gullmarn, sh. 1. 15. 



Fig. 23. The same, var. Schneideri Friele, Spitzbergen (Torell), sh. 1. 13. 



Fig. 24. The same, forma typica, Vega Exp. St. 1016, sh. 1. 14. 



Fig. 25. Velutina plicatihs (Muller), Gullmarn, sh. 1. 9.5. 



Fig. 26. The same, Vega Exp. St. 1016, sh. 1. 18.2. 



Fig. 27. Velutina undata Brown, 72° s' N. 74° 20' W., sh. 1. 15. 



Fig. 28. The same, Bel Sound (Torell), sh. 1. about 20. 



Fig. 29. Velutina insculpta n. sp., N. E. of The Seven Islands, sh. 1. 13 (cfr Pl. 2, Fig. 14). 



Fig. 30. Marsenina glabra Couth. var. micromphala Bergh, Hammerfest, sh. 1. 11 (cfr Pl. 1, Figs. 7, 8). 



Fig. 31. The same, var. groenlandica., E. Greenland, 1. an. 14. 



Fig. 32. Onchidiopsis glacialis (M. Särs), Bel Sound, 1. an. 33 (cfr Pl. 2, Fig. 24). 



Fig. 33. The same, E. Greenland, 1. an. 37 (cfr Pl. 2, Fig. 23). 



Fig. 34. O. latissima, Mossel Bay, 1. an. 35 (cfr Pl. 2, Fig. 22). 



Addencla and Errata. 



Page 9, hne 18 from foot of page and Page 10, line 9 fiom top of page jor Lamellaria Montagu 

 1815 read LameUaria Montagu 1811. 



Page 14, under General Distribution of Trivia arctica is to be added : W. coast of Denmark (1. 12, 

 Christensen 1907). — E. of Orkney Islands, 88 m; Morocco, Madeira, Cape Verde Islands (Dautzenberg & 

 Fischer 1912). 



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