Reproductive Biology

First abdominal segment bears male intromittent organ. Fertilization is external, taking place in the brood chamber of the female. Nauplii hatch from eggs and develop within the brood chamber where they metamorphosize into cyprid-like larvae that are capable of feeding and have a bivalved carapace, but no second antennae. During the larval stage—called the as-cothoracid stage—young leave the brooding chamber present in females and begin to search for their own host.

CONSERVATION STATUS Not listed by the IUCN.

SIGNIFICANCE TO HUMANS None known. ♦

Root-like barnacle

Sacculina carcini

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