A stalked glass sponge (Class: Hexactinellida) “growing” on the abyssal plain of APEI 4. The latticework skeleton of a glass sponge is siliceous, i.e. made of glass. The distance between the two laser points is 15 centimeters.
A Stalked Glass Sponge
Image courtesy of the DeepCCZ expedition. Download larger version (jpg, 606 KB).

A stalked glass sponge (Class: Hexactinellida) “growing” on the abyssal plain of APEI 4. The latticework skeleton of a glass sponge is siliceous, i.e. made of glass. The distance between the two laser points is 15 centimeters.

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