Figure 5 in The morphological and functional variability of pleon-holding mechanisms in selected Eubrachyura (Crustacea: Decapoda)

Figure 5. Pleon shape of the gecarcinucid Irmengardia johnsoni Ng & Yang, 1985, ♂, 13 × 12 mm, Singapore (ZRC2013.1445). (a) Photo of ventral side of specimen showing T-shaped pleon. (b) 3D surface reconstruction, based on µCT images. Arrow indicates position of pleon-holding mechanism. (c) Volume rendering of µCT images, frontal view. Telson and sixth pleon segment virtually removed, sternal buttons (red) visible inside sterno-abdominal cavity. B: button; S5: sternite 5; t: telson. Scale bar = 5 mm.