High Quality Content by WIKIPEDIA articles! The term, velum, derived from Latin velum, meaning a "sail", "curtain," "awning" or "veil", has several quite separate meanings in biology: the locomotory and feeding organ provided with cilia found in the larval stage called the veliger or "velum-bearing" stage of bivalves, such as mussels and oysters; also a delicate membrane found on certain Protists, the circular membrane around the cap of a sea jelly or medusa, of class Hydrozoa, which helps with propulsion

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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The term, velum, derived from Latin velum, meaning a "sail", "curtain," "awning" or "veil", has several quite separate meanings in biology: the locomotory and feeding organ provided with cilia found in the larval stage called the veliger or "velum-bearing" stage of bivalves, such as mussels and oysters; also a delicate membrane found on certain Protists, the circular membrane around the cap of a sea jelly or medusa, of class Hydrozoa, which helps with propulsion