Bathecalyx [Bathecalyx]

Description

Bathecalyx is a genus of marine sponges in the family Chalinidae. These sponges are characterized by their globular shape and surface covered with conical projections. They inhabit various marine environments, often attaching to rocky substrates in shallow waters. Their structure is supported by a skeleton made of spongin, a type of collagen, giving them a flexible yet sturdy form. The members of this genus are filter feeders, playing a role in marine ecosystems by cycling nutrients and water purification.

Species

Deep sea sand dollar [Bathecalyx deeplongi]

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Arctic sand dollar [Bathecalyx arcticus]