Plate II. 



Fig. 10. Stylaster roseus; front surface of a fragment of a colony with female ampullae; "Ingolf" St. 15. 

 Nat. size. 



11. Stylaster roseus; fragment of a colony which is entirely deformed owing to the development 



of numerous female ampullae; "Ingolf" St. 7. Nat. size. 



12. Stylaster norvegicus; one of the type specimens of Gunnerus' Millepora norvegica from 



west coast of Norway. Nat. size. 



13. Stylaster norvegicus; front surface of a narrow-branched colony from Trondhjem Fjord. Nat. size. 



14. hind surface of the same colony. Nat size. 



15. front surface of a broad-branched colony from Trondhjem Fjord. Nat. size. 



16. gemmascens; ends of two branches of a colony from Trondhjem Fjord. 4/ r . 

 17. roseus\ end of a branch of a colony from "Ingolf St. 15. -*/;,. 



18. norvegicus; ends of two branches of a colony from Trondhjem Fjord. 4/,. 



