See text Horaiclavidae is a family of predatory sea snails, marine gastropod mollusks in the superfamily Conoidea.

[1] In 2011 this family was split off from the family Pseudomelatomidae (formerly the subfamily Crassispirinae McLean, 1971) by Bouchet P., Kantor Yu.I., Sysoev A.

& Puillandre N. in their publication "A new operational classification of the Conoidea".

It has many characters in common with the family Pseudomelatomidae, except the smaller shell with a low spire, the short siphonal canal and a weak or absent spiral sculpture.

The radular formula is 1-0-0-0-1, but some species in this family lack a radula.