Thorax and abdomen of Crucisternum ouboteri: A ventral view of mesoventrite (white arrow pointing longitudinal carina and transverse ridge); B posterior view of metafurca: (at) anterior tendon, (c) crux, (ds) dorsal sheath, (fa) furcal arm, (h) hemiductus, (ls) lateral sheath, (s) stalk; C fifth abdominal ventrite.