FIGURE 3 in Dinonemertes shinkaii sp. nov., (Nemertea: Hoplonemertea: Polystilifera: Pelagica) a new species of bathypelagic nemertean

FIGURE 3. Dinonemertes shinkaii sp. nov., holotype, JAMSTEC 6K549SS4, transverse sections. A. Proboscis anterior chamber with everted (exterior) and inverted (interior) states; the 24 nerves in the everted proboscis are indicated by arrowheads. B. Proboscis anterior chamber in inverted state; arrowhead shows a "ganglion" between the proboscis nerves. C. Anterior portion of the proboscis posterior chamber; arrowheads indicating the proboscis nerves. D. Posterior portion of the proboscis posterior chamber; arrowheads indicate the incomplete nerve layer.