The Echinoid Directory

Key to subfamilies of Saleniidae

1a. Periproct offset to one side of the anterior posterior axis: suranal (s) and posterior genital plate (G5) in contact with one another.

Saleniinae

1b. Periproct lying on the anterior posterior axis: suranal plate (s) and posterior genital plate (G5) symmetrically arranged and separated.

Hyposaleniinae