PERIGONIUMS REPENS. 47 



are borne in bunches, like grapes, on polypite 

 or coenosarc ; they are plentifully distributed 

 over the specimens preserved in liquid. 



Family. ATRACTYLID^. 

 Perigoniums repens, Wright. 



Specimen on shell, in liquid. 



SPECIMEN The polypite is club-shaped with a 

 12. single circlet of tentacles, and 

 arises by a stem from the creeping root-like 

 ecenosarc. The polypary is of a reddish 

 brown colour and extends to the base of the 

 tentacles, where it expands into a cup-like 

 receptacle, not, however, of such a finished 

 character nor capable of covering the whole 

 polypite as in the sub-order THECAPHORA. 

 The gonophores are formed on the stem, the 

 reproductive bud being a free medusa. 



The species is rare at Hastings. It was 

 trawled on Nucula nucleus together with 

 Lovenella clausa, another rare species, on the 

 same shell. 



