Plate II. 



Fit^. lo. Slylastcr roscus; front surface of a fragment of a colony with female ampullae; "Ingolf" vSt. 15. 

 Nat. size. 



— II. Stylastcr roseus\ fragment of a colony which is entirely deformed owing to the development 



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



— 12. Stylastcr norvcgicus\ one of the tyjpe specimens of G tinner us' Millcpora norvcgica from 



west coast of Norway. Nat. size. 



— 13. Stylastcr norvcgic7ts\ 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. Vi- 



— 17. — roseiis\ end of a branch of a colony from "Ingolf" St. 15. i/i. 



— 18. — norvcgicns; ends of two branches of a colon}- from Trondhjem Fjord. 4/j. 



