Name: Porponia antarctica
Reference: Carlgren O., 1914, Page 56 , fig. 2
View: Column, cross section
Caption: "FIGS. 2 and 3.-Schematic sections through the æsophagus region of *Porponia antarctica* (fig. 2) and *Halcurias carlgreni* (fig. 3). The position of the tentacles (the dark rings) is drawn in. The rectangular, dark figures on the mesenteries indicate the longitudinal muscles. The shaded lines denote the directive plane. In *Porponia* the ridges of the æsophagus are not drawn in."