KUNGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 48. N:o 1, 87 
Plate 1. 
Figs. 1—32. 
Fig. 1. Acmeéea testudinalis (Muller), Bohuslän (Lovén), some colour variations; 2 sps seen from inside. 
Fig. 2. The same, Berufjord, Iceland (Torell). 
Fig. 3. 'The same, Berufjord, young sps. 
Fig. 4. The same, »Bel Sound> (Torell), 1 sp., seen from inside and outside. 
Fig. 5. The same, Sukkertoppen, Greenland, seen from the left. 
Fig. 6. The same, Grötsund, Finmark, from the left and from above. 
Fig. 7. The same, Nivakfjord, Greenland. 
Fig. 8. Acmea pelta Eschscholtz (left and middle sp-), and A. patina Eschscholtz (right sp.), Behring Island (Vega Exp 
the outer sps seen from inside. 
Fig. 9. Acmeea virginea (Mäller), Dröbak (Lovén), nat. size above, X 2 below. 
Fig. 10. The same, Bohuslän (B. Fries), at the sides, and Point of Höghalla (Lönnberg), in the middle, seen from the left. 
Fig. 11. The same, Finmark (Lovén). 
Fig. 12. The same, the left sp. in fig. 11, X 2. 
Fig. 13. The same, Raufarhofn, Iceland (Torell). 
Fig. 14. The same, var. spitzbergensis n. var., Mossel Bay (from above and from the left) and Treurenburg Bay (from 
the inside). 
Fig. 15. The same as in fig. 14, X 2. 
Fig. 16. Acmzea rubella (Fabricius), Kostin sharr (from the left), nat. size and X 2. 
Fig. 17. The same, 'Treurenburg Bay, nat. size (below) and X 2 (above). 
Fig. 18. The same, Pröven, Greenland, nat. size and X 2. 
Fig. 19. The same, Berufjord, Iceland, nat. size and X 2. 
Fig. 20. The same, Grötsund, Finmark, from the left, nat. size and X 2.5. 
Fig. 21. The same, Finmark (Lovén), from inside, nat. size and X 2.2. 
Fig. 22. The same, Berufjord, Iceland, nat. size and X 2.5. 
Fig. 23. The same, forma elevata, Berufjord, one sp. from above, the rest from the left; nat. size and X 2.5. 
Fig. 24. Patella vulgata Linné, var. depressa, Norway. 
Fig. 25. The same, var. depressa and coerulea, Väderöarna, Bohuslän, from above and from the left. 
Fig. 26. The same, forma typica, Väderöarna. 
Fig. 27. Helcion pellucidum (Linné), Finmark (Lovén), from the left and from above. 
Fig. 28. The same, Farsund, Norway, from the left. 
Fig. 29. The same, Christianiafjord (Asbjörnsen), from the left. 
Fig. 30. The same, Norway (Marklin). 
Fig. 31. The same, Bohuslän (Lovén). 
Fig. 32. The same, Bohuslän (B. Fries). 
Plate 2. 
Figs! 1==50: 
Fig. 1. Cryptobranchia alba Dall, Konyam Bay, Behring Sea (Vega Exp.) 3 sps, from the left, from outside and from 
inside. 
Fig. 2. Lepeta coeca (Miller), Christianiafjord (Asbjörnsen), 1 sp., seen from the left and from above. 
Fig. 3. The same, Väderöarna, Bohuslän, 3 sps, seen from above, from the left side and from inside. 
Fig. 4. The same, Bergen, 2 sps, from above and from the left. 
Fig. 5. The same, Ulfsfjord, Finmark, 4 sps. 
Fig. 6. The same, Berufjord, Iceland, the median fig. above, and the left one below are the same sp. 
