Shell of four whorls, obtusely fusiform, and with the last whorl somewhat inflated. Nucleus mammillated, whorls smooth, moderately convex, with a distinct, though not channelled suture. Aperture eleven-seventeenths the length of the shell, elongate, produced in front, with the outer lip moderately thickened and the inner lip without callus. Canal almost straight; short, narrow. Long., 1.8 inch; lat., 0.9 inch; defl. 65°. Color white, or light pinkish.

This form maybe a distinct species, but I have preferred to indicate it as a variety (of V. behringii), for the present. It differs from V. behringii in being smooth and regular, without the lumps or irregular ribs which are common in the V. bheringii; it is smaller in size, when adult, by one-half; it is never of the dark livid chestnut color which invariably characterizes V. behringii. The outer lip is less patulous, the canal proportionately narrower, and the aperture shorter, compared with the whole length of the shell. Moreover, the specimens are remarkably uniform in their characters, and the V. behringii, though very variable as a whole, is equally constant in the differential characters alluded to. I have come to this conclusion only after a careful examination of over a hundred specimens of F. behringi, and a good series of this form. The former is much more common in the localities alluded to.

Now V. regularis is put on the species level.

USA, Alaska. Unalashka, to the Shumagins; rare.