FIGURE 3 in On the problematic placement of the fossil arthropod Devonopilio hutchinsoni in Opiliones (Arachnida)

FIGURE 3. MicroCT images of a male of Phalangium opilio (Opiliones: Eupnoi: Phalangiidae) with everted penis, latero-ventral view. Inset shows detail of penis sheath, latero-dorsal view. P: penis, S: penis sheath, Asterisk marks the loop of the proximal region of the sheath when the penis is everted. MicroCT images courtesy of Rachel Werneck.