Name:
Bunodosoma spherulata Reference: Duerden J. E., 1902, Plate XI , fig. 39
View: Other
Caption: "Fig. 39. *
Bunodosoma spherulata*. Transverse section of a portion of the column-wall some distance below the stomodæal region, with a mesentery attached showing the circumscribed retractor muscle, the parieto-basilar muscle, and the simple filament."