From editor or global species database
Taxonomy The generic position of the species remains unclear. It is conchologically similar to two deep-water species described by Dall [1919]: halidonus and trophius. These species share rather broad thin-walled shell with slightly attenuated narrow canal, reflected outer aperture lip and similar pattern of spiral sculpture of low but distinct cords, covering entire shell surface. Nothing is known on the anatomy of the species, and it (together with other mentioned species) may belong to separate still unnamed genus. [details]
From editor or global species database