74 



ECHINODERMATA. 



S. nudus. Fig. 119 ; •§. 

 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. 

 Johnstoni. granulosus, 



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



tenuicinctus. Pallasii. 



119 



120 



122 



123 



Family II. Priapulimj. 



Priapulus (Lamk.). Body truncate behind; tail 

 much branched, pointed. 



P. caudatus. Fig. 121 ; f . 



