Mollusca. 2 1 3 



EXPLANATION OF PLATES. 



Plate XXIV. 



g. 1. — Philine antarctka. 



gs. 2, 3. — FJdliiie ajjertissiina. 



g. 4. — LameUaria conica. 



g. 5. — Calliostoma aucldandica. 



g. 6. — Natica delicatula. 



g. 7. — Polypus cainphdU, dorsal view. 



8. — ■ „ ,, ventral side. 



g. 9. — „ „ lateral view of part of arm. 



g, 10. — „ „ eud of hectocotylized arm. 



g. 11. — „ „ oral end of a lateral arm. 



gs. 12, 13. — Eutliria aucldandica. 

 gs. 14, 15. — Lissarca aucldandica. 

 g. 16. — Paludestrina antarctica. 



17. — Rissoa adarensis. 



18. — Eatoniella 2^aludinvides. 



19. — LameUaria mollis, dorsal view, mantle cut open. 



20. — ,, ,, side view. 



21. — „ ,, ventral side. 



Plate XXV. 



Fig. 1. — Newnesia antarctica, ventral side. 



Fig. 2. — ,, „ dorsal view. 



Fig. 3. — ,, ,, lateral view. 



Figs. 4, 5.— „ ,, shell. 



Fig. 6. — ,, ,, tooth of radida, front {h) and side view {a). 



Figs. 7, 8. — Clione antarctica. 



Figs. 9, 10. — Anatina elliptica. 



Fis. 11. — Pecten colbechi. 



