Shell medium in size, reaching 13 mm. in length, solid, milky white, the height being about 60 % of the shell length; aperture elongate elliptical in shape; anterior slope strongly, convexly arched and posterior slope concave immediately below the apex, more weakly concave downward; apical whorls one and one half in number, and place strongly down the shell and situated at the posterior end; anal fasciole narrow, distantly crossed by transverse lamellae; fissure long and narrow, slightly shorter than one half of the anterior slope; radial sculpture consists of 21 to 27 widely spaced primary ribs, and in addition to them, there occur secondary ribs between each two of them; concentric sculpture consists of widely spaced cords forming small nodules, where they intersect the ribs; these cords divide the spaces between the ribs into coarse and deep square pits; two radial ribs, a little more highly elevated than the rest, border the fasciole and the fissure; margin crenulated by the terminations of ribs; interior of shell chalky white.

Height 8.0 mm., length of aperture 12.8 mm., breadth of aperture 9.0 mm. (figured type specimen).
Height 8.2 mm., length of aperture 12.8 mm., breadth of aperture 8.5 mm.
(paratype specimen).
Height 6.3 mm., length of aperture 11.4 mm., breadth of aperture 8.3 mm. (examined specimen from off Tugaru Beninsula, Aomori Pref., Honshu; Soyo-maru station No. 646, 123 m. in depth).
Height 6.8 mm., length of aperture 12.4 mm., breadth 8.6 mm. examined specimen from off Noto Peninsula, Honshu, about 100 fathoms in depth).
Height 6.6 mm., length of aperture 12.6 mm., breadth of aperture 8.6 mm. (examined specimen from off "Noto Peninsula, Hoshu).

This new species was reported as E. foveolata SCHEPMAN from Kyuroku-jima, Aomori Pref., Honshu by Sitihei NOMURA and Kotora HATAI, but both species are quite different in shape. E. fujitai, also reported as E. foveolata by Tadashi FUJITA from Tateyama Bay, Honshu, differs from this new species in the larger and higher conical shell with the pointed apex and the short fissure.

Type locality: Kyuroku-jima, Aomori Pref., Honshu (210 m. and 150 m. in depth).
Distribution: Japan Sea (off Noto Peninsula to off Tugaru Peninsula).