NO. 4 



hartman: polychaetous annelids 



PL. 43 



mnHmm 



r. I t ; v:'AAil 



iiili \im 



iill 



'in 



I ivlll 



unm 

 mm 





) 



-mil 



Mm 

 w urn 



Aperture of Hooid 



Tooth 



Crest 



Fan o' 

 Neck^ 

 Cleft 



Shaft 



Node 



Aperture of Hood 



Tooth 



Crest 



i\ i ' ■ i ; f I J 



Node 



& 



