74 ECHINODERMATA. 



S. nudus. Fig. 119 ; -J. 

 papillosus. 

 Harveii. 



Sipunculus (Linn.). Proboscis cylindrical, about 

 as long as the body, having a circle of simple linear 

 tentacles around its tip. 



S. Bernhardus. S. Forbesii. 

 Johnston!. granulosus. 



saccatus. . punctatissimus. Fig. 120 ; n. s. 



temricinctus. Pallasii. 



119 



9 



FAMILY II. PKIAPULID^. 



Priapulus (Lamk.). Body truncate behind; tail 

 much branched, pointed. 



P. caudatus. Fig. 121 ; J. 



