174 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL.8 



PLATE 20 



Neothyone gibber (Selenka) p. 109 



1-4. Knobbed to smooth buttons. 



5-6. Knobbed button from external layer, lateral view 



showing the external cluster of spines and the inner 



"handle." 



7. Supporting table from tube foot. 



8. Table from introvert. 



9. Supporting rod from tentacle. 



All from Selenka's type in M.C.Z. 



