Adelomelon scoresbyana: Shell small, solid, white, broadly fusiform with low conical spire 0-35 time height of aperture. Whorls about six (protoconch eroded). Suture deeply and narrowly channelled and adpressed below by a wide shallow concavity. Anterior notch broad and very shallow, fasciole defined only by the trend of the growth lines, not marked off in any way. Posterior notch deep, narrow and constricted, forming a weak sutural sinus. Plaits three, strong and of equal development, or four if the anterior thickened edge of the columella is included. Sculpture consisting of very numerous but very weak axial growth lines and equally numerous subobsolete spiral threads. The parietal glaze is cream coloured and extends half-way across the front of the body-whorl.
Height 48,4 mm.; diameter 25,5 mm.
TYPE LOCALITY. Between Falkland Is. and Strait of Magellan

The animal has the foot rather pointed posteriorly, is comparatively smooth, and the tentacles are long and tapered (10 mm.) with the eyes at the outer side of the bases. Dall found the eyes to be absent in the genotype, but the much greater depth at which it was taken (677 fathoms) would account for this absence.
The radula has not been removed, since it seems desirable to keep the only available animal intact. Experience has shown that the Volutid radula is almost invariably of the same type, that is, a single row of tricuspid central teeth.