Ctenophora

phylum of marine invertebrates Ctenophora (Ctenophora) is a phylum containing organisms that share fundamental body plan characteristics. It contains 2 classs with 8 known species. This includes the class groups Nuda, and Tentaculata. Among its members, 1 species are currently classified as threatened (Critically Endangered, Endangered, or Vulnerable). It belongs to Animals (Animalia).