Pseudoumbilical

We also characterize the pseudoumbilical ones in terms of soliton curves for the inverse curve shortening flow and minimal Legendrian immersions in odd-dimensional spheres.

A pseudoumbilical hernia is generally present but contains no gut ; true inguinal hernia is not uncommon.

At this stage (similar to pl. 2, figs. 6-7), the coiling becomes increasingly ventrally directed with the clear onset of Streptospirality, and the aperture, as it increases in height, becomes, in part, pseudoumbilical (i. e., its inner portion lies over a developing umbilical depression).

A shallow pseudoumbilical depression is discernible close to the free edge of the columellar callus.