List of animal phyla
Crustacea. Classes: Branchiopoda: brine shrimps. Cephalocarida: horseshoe shrimps. Maxillopoda: barnacles, fish lice. Ostracoda: seed shrimps. Malacostraca: lobsters, crabs, shrimp. Remipedia: a group of blind underground crustacea, globally distributed but confined to coastal aquifers. First larva is usually a nauplius, which may be followed by other larval stages.