Fig. lO^.—Hormiphora plumosa. A, dissected specimen having rather more than onu 

 quarter of the body cut away. B, transverse section ; diagrammatic, aib: c. adradial 

 canal; inf. infuiidibulum ; inf. c. infundibular canal; int. c. inter-radial canal; mrd. c. 

 meridional canal ; vith. mouth ; ovy. ovary ; pa\ c. per-radial canal ; s. o. sense-organ ; s.pl. 

 svpimming-plate ; spy. spermary ; std. stomodaeum ; std. c. stomodpeal canal ; std. r stomodreal 

 ridges ; (. tentacle ; t. b. base of tentacle ; (. r. tentacular canal ; i. sh. tentacular sheath. 



