Bubble shells are marine gastropod molluscs in the subclass Opisthobranchia. They are named for their large thin oval shells, which appear very inflated in some species.
Many are active predators and feed on worms, bivalves, and other gastropods, using crushing plates in their gizzards to break down calcareous matter.
However, some of the larger species are herbivorous, such as those in the genera Bulla and Haminoea, which feed mostly on green algae.
These snail species are typically nocturnal, and inhabit sea grass beds in sandy coastal substrates. They bury themselves in the mud when the tide goes out.
Bubble shells are simultaneous hermaphrodites, meaning each individual has both male and female sex organs, but they cannot fertilize themselves. Fertilized eggs are laid in jelly-like strings on seagrasses or the substrate.
Matthew Oldfield is a freelance photographer based in Bali, Indonesia, specializing in editorial and documentary images from both above and below the waves. He works primarily with charities, NGO’s, and other organizations working to conserve the environment, endangered species, and disappearing cultures.
Many are active predators and feed on worms, bivalves, and other gastropods, using crushing plates in their gizzards to break down calcareous matter.
However, some of the larger species are herbivorous, such as those in the genera Bulla and Haminoea, which feed mostly on green algae.
These snail species are typically nocturnal, and inhabit sea grass beds in sandy coastal substrates. They bury themselves in the mud when the tide goes out.
Bubble shells are simultaneous hermaphrodites, meaning each individual has both male and female sex organs, but they cannot fertilize themselves. Fertilized eggs are laid in jelly-like strings on seagrasses or the substrate.
Matthew Oldfield is a freelance photographer based in Bali, Indonesia, specializing in editorial and documentary images from both above and below the waves. He works primarily with charities, NGO’s, and other organizations working to conserve the environment, endangered species, and disappearing cultures.
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