252 



J. H. ASHWORTH. 



middle and lower portions of the stomodseum, and are most 

 abundant on the lateral walls near the siphonoglyph. They 



G.c. 



.M.r 



VM~ 



L.M 



Fig. I. 



Fig. 1. — Semi-diagrammatic view of one half of a polyp which has been cut 

 along the dorso-ventral line. Only the bases of the tentacles are shown x 20. 



Fig. 2. — Transverse section through the lower third of the stomodaeuni 

 (about the level of the reference letter F in Fig. 1) X 80. 



D.M.F. Dorsal mesenterial filament on the edge of the dorsal mesentery; 

 F. Flagella of siphonoglyph ; G.C. Gland cells of stomodaeum ; L.M. Edge 

 of lateral mesentery (mesenterial filament absent) ; Mo. Mouth ; Si. Siphono- 

 glyph ; St. Stomodaeum ; T. Tentacle ; V.M. Edge of ventral mesentery 

 (mesenterial filament absent). 



