"Transformations of the Crab: 1, young crab, or zoea, magnified; 2, young crab, in a more advanced stage,…
An illustration of a Zoea of common shoe-crap in its second stage. r, Rostral spine; s, Dorsal spine;…
An illustration of the zoea of a common-shore crab in its second stage. R, Rostral spine; S, Dorsal…