zoea

larva

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July 15, 2026

Quick Summary

A zoea is the free-swimming, planktonic larval stage of many decapod crustaceans, particularly crabs. These larvae have a distinct appearance with a prominent cephalothorax, noticeable eyes, and specialized antennae and mouthparts. The term "zoea" was first introduced in the early 19th century and is derived from the Greek word for "life". This larval stage is a crucial part of the life cycle, allowing for dispersal and a different mode of life from the adult form.12

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crustacean
Reproduction and life cycles
…and some thoracic limbs, the zoea uses its thoracic limbs for swimming, and the postlarval stages use the abdominal appendages. Most decapods omit the nauplius stage and hatch as zoeae, which may be heavily ornamented with spines. The crab zoea eventually changes into a megalops, which resembles a small crab…
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…and some thoracic limbs, the zoea uses its thoracic limbs for swimming, and the postlarval stages use the abdominal appendages. Most decapods omit the nauplius stage and hatch as zoeae, which may be heavily ornamented with spines. The crab zoea eventually changes into a megalops, which resembles a small crab…
Read More