Fig. 3From: Homology of the head sensory structures between Heterotardigrada and Eutardigrada supported in a new species of water bear (Ramazzottiidae: Ramazzottius) Head sensory organs of Ramazzottius groenlandensis sp. nov. Differential interference contrast microscope (DIC) images and SEM images: A–D SEM images; E DIC images. A head region. B frontal lobe. C centrodorsal organ (CO). D, E elliptical organ (EO). Arrows and arrow head indicate pores and EO, respectively. AVL: anteroventral lobe; CMAS: cribriform muscle attachment site; CO: centrodorsal organ; EO: elliptical organ; PBL: peribuccal lobeBack to article page