Larvae and Evolution: Toward a New Zoology.

Abstract

Evolution, relationships and larvae. Crustaceans with incongruous larvae. Echinoderms and their larvae. The affinities of echinoderms. The metamorphosis of echinoderms. The relationship between sea-urchins and brittle-stars. Echinoderms through the ages. The trochophorate phyla. The near-trochophorate phyla. Gene transfer. Testing the theories. Implications.