"b. Fouling Orf^ajilsma . Silt, aJLgae, and inverte"brate 

 !animals 15610081118 to 5 phyla contrl'buted to fouling of tlie peinels. 

 I^ie natter comprised hydrolds, encrusting and filamentous Bryozoa, 

 ferpulid worms, 'barhacles, and tunicates. Of these organisms, serpulid 

 \^orms occurred with the greatest frequency and abundance, hydroids with 

 i^ss frequency, 'barnacles with still less frequency, while the occurrence 

 of the others, as well as the algae, was purely sporadic. 



5. Recent Addenda . There were very heavy attacks of Teredlnldae 

 at\thls location from sets in 19^8 and 19^9« "Ehe Llmnoria attack was 

 exti;emely severe in each of these years, several panels "being from 25^ 

 to 80^ destroyed in 19^9. There were no Pholads. 



222 



