CONKLIN, ACTINIAN LARV/E 



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Transverse sections of Znantlilnn amcrlc.ina (?), 1.8 mm. lone and 1.2 mm. wide. Photomlcrocraphs liy H. G. Kribs, taken with 



monochrom;ttic blue lijihl of •'46 fj. wavc-Icnuih. x75. 

 Fics. 19-21. Sections through portion of body on oral side of ciliated groove. 

 Fig. 22. Section through ciliated groove, showine a portion of the outer wall of the groove. 



Fig. 23. Section through deepest p.nrt of ciliated groove, showing twelve endodcrmal pockets in outer wall of groove. 

 Figs. 24-25. Sections through the abor.il part of the body. The endoderm cells contain many small round bodies, the Zooxanthellie. 



