PLATE XXXIII.
F ig .
1. Anterior scale of HJvarne Hubrechti, Mcl. x 20.
2. Portion of the scale of a small example of Halosydna gelatinosa, Sars. X 210.
3. Portion of the inner edge of the first scale of Harmothoe areolata, Gr. X 90.
4. Anterior scale of Harmothoe spinifera, Ehlers. X 20.
5. Anterior scale of Lcenilla setosissima, Sav. X 20.
6. Anterior scale of Scalisetosus assimilis, Mcl. X 38.
7. Anterior scale of Scalisetosus pellucidus, Ehlers. x 45.
8. Anterior scale of Antino'e finmarchica, Mgrn. X 30.
9. Anterior scale of Antino'e mollis, Mcl. X 18.
10. Anterior scale of Malmgrenia castanea, Mcl. X 40.
11. Anterior scale of Malmgrenia andreapolis, Mcl. X 24.
12. Scale of a small example of Halosydna gelatinosa, Sars. x 15.
13. Scale of small example of Polynoe scolopendri/na, Say. (from Herm). x 40.
14. Scale of the large form of Polynoe scolopendrina, Sav. (from North Uist). X 24.
15. Scale of Acholoe astericola, D. Chiaje. X 28.
16. Tenth scale of Stlienelais boa, Johnst., from St. Andrews. X about 30.
17. Anterior scale of Antino'e Sarsi, Kbg. x 20.