Fig. 3From: A new redescription of Richtersius coronifer, supported by transcriptome, provides resources for describing concealed species diversity within the monotypic genus Richtersius (Eutardigrada)Richtersius coronifer s.s. (Richters, 1903) from the Billefjorden population, mouth seen in SEM. a head and mouth opening of a hatchling. b oral cavity armature of an adult. Asterisk indicates the circular sensory field, filled arrows indicate the peribuccal velum/lamina, filled arrowheads indicate the first band of teeth, filled indented arrowhead indicates the pre-mouth ventricle, empty indented arrowheads indicate the teeth of the second band, dorsal and ventral teeth of the third band are marked with D and V, respectively. Scale bars in μmBack to article page