Classification

crabs, lobsters, shrimps etc. Crustacea

bristle worms (bristles or setae on the parapodia) Polychaeta

sea squirts etc. Tunicata

sea anemones and corals Anthozoa

jellyfish and hydrozoa Medusozoa

sea urchins and sea cucumbers Echinozoa

starfish and brittle star Asterozoa

snails, nudibranchs etc. Gastropoda

Parasitic flatworms Rhabditophora

mussels etc. (two shells) Bivalvia

cnidarians with 6-fold symmetry Hexacorallia

cnidarians with polyps with 8 tentacles Octocorallia

Polyp life stage of cnidaria Hydrozoa

5 pairs of legs Decapoda

skeleton shrimp Amphipoda

idotea granulosa Isopoda

barnacles Balanomorpha

anemones Actiniaria

snails Littorinimorpha

Klicka