FIGURE 12. Caprella equilibra Say, 1818 in Postembryonal development in Caprellidae: SEM description and comparison of ready-to-hatch juveniles and adults of two Mediterranean skeleton shrimps (Crustacea: Amphipoda)

FIGURE 12. Caprella equilibra Say, 1818 (Lagoon of Venice). SEM of first juvenile stage. A. Mxp, ventral view. Bar: 10µm. B. Mxp palp, detailed view of inner surface. Bar: 10µm. C. Mxp dactylus, detailed view. arrowheads bristle rows; arrow ventral setae. Bar: 2µm. D. Mxp inner plate = basal endite, ventrofrontal view. small arrowheads distal spines; large arrowhead distal, plumose setae; small arrow ventral, plumose setae. Bar: 10µm. E. Pr2, ventral view. Bar: 20µm. F. gills, lateral view. arrowheads setae at gill basis. Bar: 20µm. G. Gn1, lateral view of outer surface. small arrowhead bifid dactylus tip; large arrowheads distal setae; small arrow ventromarginal seta; big arrow grasping spine. Bar: 20µm. H. Gn1 propodus, detailed view. arrowheads pronged ridge. Bar: 10µm. I. Gn2, lateral view. small arrowheads setae on dactylus; small arrows setae on propodus; big arrow grasping spine. Bar: 20µm. J. P5, lateral view. arrowhead proximal seta; arrows ventrodistal setae. Bar: 20µm. K. propodus, ventral view. arrowhead 2 rows of fine teeth. Bar: 10µm. L. P7, lateral view. arrowhead proximal seta; arrows ventrodistal setae. Bar: 100µm. M. Abd, ventral view. Bar: 10µm. g gill; Lb labium; Plp 1,2 pleopod 1,2; Pls pleon setae; co coxa; ba basis; i ischium; m merus; crp carpus; prd propodus; dt dactylus.