[293]

Spongophacus = Spongy lens; σπόγγος, φάκος.

[294]

Spongolonche = Spongy disk with spontoons; σπόγγος, λόγχη.

[295]

Spongotripus = Spongy disk with tripod; σπόγγος, τρίπους.

[296]

Spongostaurus = Spongy disk with crossed spines; σπόγγος, σταυρός.

[297]

Stylotrochus = Wheel with styles; στῦλος, τροχός.