Name:
Bunodosoma spherulata Reference: Duerden J. E., 1902, Plate X , fig. 36
View: Other
Caption: "Fig. 36. *
Bunodosoma spherulata*. Vertical section through the upper part of the column-wall, including an evagination (*ev.*), acrorhagus, and tentacle (cut obliquely), and showing the small pedunculated, circumscribed endodermal sphincter muscle."