Home Acknowledgments Conventions Glossary Maps References Links Articles Thumbnails Species list Order Next family	Juliidae The family Juliidae includes the "bivalved snails"--unique among gastropod mollusks in having clam-like shells into which the body can be withdrawn. They were first described as bivalves from fossil material and only recognized as gastropods when living animals were discovered in 1959. Diurnally active, they feed on green algae. Some are among the few gastropods to have green shells. At least seven species are known from Hawaii in at least two genera (Berthelinia and Julia). Berthelinia pseudochloris Julia exquisita Julia zebra Julia sp. #1 Julia sp. #2 un. sp. #1 un. sp. #2
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