Plate II. 



Various Animal Fouling Organisms. 



Rather less than Natural Size. 



Fig. 11.— Tubeworms. Fig. 12. — Barnacles. The coloured type is a tropical and sub-tropical form ; 



the white ones are a typical British species. The elongated form assumed when the barnacles are tightly 

 packed is also shown. Fig. 13. — Mussels. Fig. 14. — Oysters. Fig. 15. — Patches 



of encrusting Polyzoa. Fig. 16. — Bases of barnacles after the barnacles themselves have fallen off 



or been removed by scraping. 



[Fouling of Ships. 



