Figure 1.
Schematic vertical longitudinal sections to show the relationships of
the gut and proboscis apparatus in Palaeonemertea (a), Heteronemertea
(b), Hoplonemertea (Monostilifera) (c) and Bdellonemertea (d).
(Modified from Gibson, 1972.)
![[Figure 1]](nermertean%20fig%201_files/nfgz001.gif)
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