Name: Gyrostoma glaucum
Reference: Annandale N., 1915, Page 71 , fig. 1A
View: Column, cross section
Caption: "Fig. 1-*Gyrostoma glaucum*, sp. nov. A. Transverse section through the column in the lower part of the stomodaeum. B. Vertical section of the lower part of the sphincter. c.m.=circular muscle: ec.=ectoderm: en.=endoderm: g.=gonad: m.=mesogloea: t.=tentacles thrust into mouth."