WILLSIAD^E. 



47 



spaces, reaching nearly to the margin; tentacles 

 16, alternating with the vessels; peduncle short, 

 terminating in four long lips. 



P. Alderi. Fig. 76 ; n. s. 



78 



JEguorea (Peron). Umb. depressed, convex; 

 vessels and ovaries very numerous; peduncle wide, 

 expanding into many broad long-fringed lobes ; 

 tentacles varying in number, slender. 



M. Forskallii. 

 vitrina. 

 Forbesiana. Fig. 77 ; -i. 



FAMILY VI. WILLSIAD.E. 



Willsia (Forbes). Umb. globose ; ovaries 6 ; 

 vessels 6, twice dichotomously dividing, as they 

 approach the margin ; an eye and a tentacle oppo- 

 site each branch ; peduncle short, four-lipped. 



W. stellata. Fig. 78 ; f. 



