FIGURE 5. Inner layer of Concavicaris woodfordi (Cooper, 1932). A–C, anterior part of the specimen. A, tomogram (transversal slice). B, tomogram (transversal slice; colour-marked). C, anterior view (3D rendering). D–F, posterior part of the specimen. D, tomogram (transversal slice). E, tomogram (transversal slice; colour-marked). F, cross-section (3D rendering). G, cross-section of cephalothorax of a reptantian decapod (after Glaessner, 1969). H, I, cross-section of the carapace structure of a myodocopan (Euphilomedes japonica (Müller, 1890); after Yamada, 2019). H, attached region. I, duplicated region. Arrow indicates the rotation of the posterior part of the inner layer. Abbreviations: am, adductor muscles; app, appendage; cb, chitinous body; ef, epimeral fold; g, gills; hi, hinge; il, inner layer of the shield; ila, anterior part of the inner layer; ilp, posterior part of the inner layer; mua, attractor muscles; ol, outer layer of the shield; pl, pleural part; pta, posterior trunk appendages; so, shield outline; st, sternal part; te, tergal part. Scales: 5 mm.