1 Serpula contor bupHccda. 4 Operculum cfSerp. biccrrus. 
t Tube ofSerpulas cos tails. 5 SabeZLcu pro tula. 
3 Operculum of Serp. steUala . 6 Spirorbis nautilovdes . 
I. ondan/. Tubliskcd/ by Whittaker PC? Ave'MarLa.'I.an.e : 1852 . 
■Annelida Pb. 8 . 
