This is an addition to the New South Wales fauna. It may be considered the deep-water representative of E. frauenfeldi, but is slenderer, slightly larger, and of a chestnut colour rather than chocolate. The ribs, too, are practically obsolete and are replaced by fine growth lines—May says "faintly striate". We have it abundantly from 30-35 fathoms off Crookhaven, the figured specimen 2,8 mm.; also from 14 fathoms off Long Reef.