Shell cream coloured, large, much elevated; apex posteriorly situated, about one fourth the length of shell; anterior slope convex, posterior slope slightly curved; fissure short and narrow about 5,5 mm. from the anterior extremity; the sides of the shell are arcuate allowing the anterior and posterior ends only, to rest on a flat surface. Margins crenulated through the radial sculpture which consists of radiating ribs in two series, about forty, very prominent, standing out of the surface of shell, and the other, much smaller, each alternating with those of the larger series. Furrow well defined and crossed by numerous, somewhat irregular imbricating scales. The shell is further ornamented with numerous, fairly regular concentric ridges traversing the whole area and giving the shell a more or less latticed appearance.
Size of holotype. Length 25 mm., breadth 18 mm., height on a plane surface 12 mm.
Radula has a series of seven central cusps which diminish in width from the centre; each cusp has a slightly over-turned cutting edge. The single pair of laterals are very large, with an overturned bicuspid tip. There are a large number of fine wheat-ear-like marginals.
Locality. 50 fathoms off Gabo Island. (N. Buckland).
Observations: A large representative of the genus, of similar dimensions to E. superba (Hedley and Petterd, 1906) but readily distinguished by its greater height, narrower furrow and longer slit.