crustaceans
Figure 28.41 All crustaceans go through different larval stages. Shown are a the nauplius larval stage of a tadpole shrimp, b the cypris larval stage of a barnacle, and c the zoea larval stage of a green crab. credit a: modification of work by USGS; credit b: modification of work by M. Mingorance Rodrguez; credit c: modification of work by B. Kimmel based on original work by Ernst Haeckel .