178 



ZOOLOGY 



(rudiiiieiilary eye). Sleiioryphnf is an allied form which probably is able to 

 move by creeping (looping) inoveiiieuts like those of a leech. Capria haa no 



\mni 



Fio. 130, — Tessera princeps, A, external view; B, verticil section, ,^./. gastric filament; 

 i?y»(. gonad; t.r.t. inter-radial tentacle; m;ih. manubrium; 'mUt. mouth"; ■p.r. t. per-radial 

 tentacle ; si. stomach ; tn. tseniole. (After Haeckel.) 



Fro. 131.— tuceruaria. A, oral aspect ; B, from the side. g. foot-gland ; y. /. gastric filaments 

 gon. gonad ; luDu mouth ; t. tentacles ; ta, teenioles. (After Claus.) 



tentacles. The Depastricha have an almost entire margin fringed with 

 tentacles. 



