[298]

Spongotrochus = Spongy wheel; σπόγγος, τρόχος.

[299]

Spongolena = Spongy disk with two arms; σπόγγος, ὠλένη.

[300]

Spongobrachium = Spongy shell with two arms; σπόγγος, βραχίων.

[301]

Rhopalodictyum = Network with clubs; ῥόπαλον, δίκτυον.

[302]

Dictyocoryne = Net with clubs; δίκτυον, κορύνη.