[98]

Staurodorida = Staurosphærida spongiosa = Spongosphærida tetracantha.

[99]

Staurodoras = Crossed spear; σταυρός, δόρας.

[100]

Hexastylida = Cubosphærida simplicia = Monosphærida hexacantha.

[101]

Hexastylus = Shell with six styles; ἕξα, στῦλος.

[102]

Hexastylarium = Shell with six styles; derivation from Hexastylus.