Figure 7
From: Calcitic sclerites at base of malacostracan pleopods (Crustacea) – part of a coxa
Images of the basal part of pleopods. Abbreviations as before. A. Palinurus elephas Latreille, 1803. Note that the sclerites are separated from each other by a small membranous area and almost solely reflect the outline of the coxa. B, C. Gammarus roeselii Gervais, 1835. The limb stem comprises the short coxa (artificially highlighted by shrinking effects during the drying process for SEM) and the elongated tubular basipod (cf. Figure 4A–H). B. Posterior view. C. Anterior view. Note that the coxal outline is rather well determinable. D, E. Nebalia bipes (cf. Figure 5G–L). D. Posterior view. E. Anterior view. The coxal outline is not as clear as in the amphipod. F. Pleomeric segment of the crayfish Astacus leptodactylus exhibiting the coxal portion of the pleopod. Note that the coxal outline is almost only reflected by the presence of sclerites.