FIGURE 3 in A new species of Diadumene (Actiniaria: Diadumenidae) from the subtropical coast of Brazil

FIGURE 3. Histological sections of Diadumene paranaensis n. sp. A: Longitudinal section (oral region to the right). Scale: 2 mm. B: Transverse section of the actinopharynx region; specimen with two cycles of imperfect mesenteries; arrow indicates imperfect mesenteries of the third cycle. Scale: 2 mm. C: Transverse section of the actinopharynx region; detail of the retractor and parietobasilar muscles. Scale: 0.3 mm. D: Basilar muscle in a longitudinal section. Scale: 0.2 mm. E: Detail of sphincter in a longitudinal section. Scale: 0.2 mm. F: Transverse section of a tentacle. Scale: 0.05 mm. Aph – actinopharynx; T – tentacles