Fig. 4From: On latches in biological systems: a comparative morphological and functional study of the retinaculum and the dens lock in CollembolacLSM images of the retinacular muscle (M.III-ret), revealed by phalloidin staining at 555Â nm (anterior ventral view). A Neanura muscorum (Templeton, 1835) [48], B Podura aquatica Linnaeus, 1758 [26], C Dicyrtomina ornata (Nicolet, 1842). Ct: corpus tenaculi; R: ramusBack to article page