Subfamily HEXELASMINAE Newman & Ross, 1976

Hexelasminae Newman & Ross, 1976: 37, 46.

Diagnosis.

Shell with six plates, infiltrated by chitin-filled tubes; basis calcareous; scuta parallel to basis; tergum with distinct spur; cirrus II resembling cirrus I more than cirrus III.

Type genus.

Hexalasma Hoek, 1913.