Hamulus
Species
Hamulus subquadratus (Meek, 1860)
Tubes may be quadrangular to round.
Occurrence: Redwater
Originally thought to be a scaphopod and named Dentalium subquadratum
Reference: Meek, 1860; Meek and Hayden, 1865; Palmer et al. 2004

Hamulus subquadratus
Drawing from Meek and Hayden, 1865