IV. CTENOPHORA 



233 



Fig. 207. Fig. 207A. 



Fig. 207. — Diagram of Uonnophofa, cut in two. /, tentacle ;/-~'^, root and slieath 

 of tentacle; g, main perradial vessel which divides twice dichotomously to form the 

 meridional vessels; »;, stomach; mg, paragastric canals; r'-*, rows of combs overlying 

 meridional canals; t, t', funnel and funnel vessels; s, sense body. 



Fig. 207A. — Swimming plate and epithelial cushion (after Chun). 



ws ws to 



to 



Fig. 2cS. Fig. 209. 



Fig. 20S. — Section of sense body of Callianira. .4, through the centre; B, excentric; d, 



roof of sensory groove;/, support of statoliths, 0; p, pigment cell; se, sensory cells. 



Fig. 2oq. — Aboral pole of Callianira ffrom Lang), f, supports of statoliths, 0; pp, 



pole plate; .'ik, sense body; to, openings of gastral funnels; ws, ciliated bands. 



