Epitonium rushii: Scala Rushii n. s.
Shell resembling in details of sculpture the preceding species, but yellowish or livid with a pale peripheral zone; shell much more elongated and slender, 'with three nuclear and six ordinary well rounded whorls ; the twenty-five lamellae on the last whorl a little more elevated and more regularly disposed, and with a tendency to cross the suture; the base is rounded and imperforate, the mouth rounded oval, the columellar part of the lip alone thickened, the rest sharp, hardly reflected; the sutures are deep and the spiral sculpture very regularly disposed. Long. 6.25, max. lat. 2.5 mm.
Habitat. Off Hatteras, U. S. Fish Commission Stations 2595 and 2596, in 49 to 63 fins., sand ; and at Samana Bay, St. Domingo, a white, rather more slender variety, stylina.
This elegant little species is not unlike a S. decussata in miniature, with fainter varices or lamellae, smoother surface, and no basal disk. It is dedicated to Dr. W. H. Rush, U. S. N.

A fairly rare species occurring from 40-100 fathoms off the coast, from North Carolina to the Florida Keys, as well as the eastern Atlantic and the Mediterranean Sea. To 25mm, a yellowish shell which may have reddish brown patches. There are numerous, low blade-like costae, 25-27 on the body whorl. The costae are elevated below the suture. Thread-like spiral sculpture. No basal ridge or visible umbilicus. Differs from E. polacium, by having stronger spiral threads and a more consistent cone to the spire, angled at 23-28 degrees.