Figure 11. A in The feeding mechanisms of Lynceus (Crustacea: Branchiopoda: Laevicaudata), with special reference to L. simiaefacies Harding

Figure 11. A, thick transverse section through anterior part of gizzard and associated structures of an animal embedded in low-viscosity nitrocellulose and stained with Mallory's triple stain. Photographed using differential interference contrast. This shows the entrance to the gizzard (for details see Fig. 11B) with, on each side, dilator muscles, and an anteriorly directed diverticulum of the mid gut, details of which are given in the caption of Figure 12B. Scale bar 100 Mm. B, thick transverse section through anterior part of the gizzard. The median ridge is here just arising from the floor of the posteriormost part of the oesophagus. The anterior edge of the plate of chitin that, more posteriorly, forms the roof of the tunnel can just be seen dorsally. Scale bar 50 Mm.