[223]

Perizona = Shell with surrounding girdle; περί, ζώνη.

[224]

Sethostylus = Sieve with styles; σηθός, στῦλος.

[225]

Phacostylus = Lens with styles; φακός, στῦλος.

[226]

Triactiscus = Shell with three rays; τριακτίσκος.

[227]

Sethostaurus = Sieve-cross; σηθός, σταυρός.