602 ANATOMY OF NEOHELIA PORCELLANA (mOSELEY). 



Fig. 8. Longitudinal Section through a group of Acontia which are thrust outside the 

 body wall of pol}'p, outside the radius of the tentacles {Cam. luc. x 408), Semi-diagram. 

 Only one Acontium is drawn in detail. Round the periphery are seen the exploded 

 nematocysts and gland cells, the interior is filled with interstitial cells developing nemato- 

 cysts and gland cells and ramifications of the mesogloeal core of acontial stem. 



Ac. Acontia. 



£n. Endoderm. 



Gl. Gland cells. 



I.e. Interstitial cells. 



Mg. Mesogloea. 



If. Nematocysts. 



Fig. 9. T. S. through a mesentery bearing Testis, x 300. 



£n. Endoderm. 



3Ig. Mesogloea. 



M./. Mesenterial filament. 



Te. Testis. 



Fig. 10. Z. S. through a group of Gland Cells on Mouth-disc, x 700. 



Un. Endoderm. 



Gl. Gland cells. 



In.C. Interstitial cells. 



Mg. Mesogloea. 



