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demospongiae
Science; General science
A class of the phylum Porifera, including sponges with a skeleton of one- to four-rayed siliceous spicules or of spongin fibers or both. Several genera lack a skeleton, and it is ...
acantharea
Science; General science
A class of the phylum Radiozoa in the Actinopoda. The kingdom Protozoa contains 18 phyla. One of the parvkingdoms (a hierarchical classification between kingdom and superphylum ...
enopla
Science; General science
A class of the phylum Rhynchocoela which is divided into the orders Hoplonemertini (free-living) and Bdellonemertini or Bdellomorpha (symbiotic). The proboscis in the ...
anopla
Science; General science
A class of the phylum Rhynchocoela which is divided into the orders Palaeonemertini and Heteronemertini. The simple tubular proboscis lacks stylets and resembles the body wall in ...
monogononta
Science; General science
A class of the phylum Rotifera characterized by a single gonad and mixed sexual and asexual reproduction. Monogonont rotifers are a major invertebrate component of freshwater and ...
bdelloidea
Science; General science
A class of the phylum Rotifera characterized by paired gonads and obligately asexual reproduction, found in diverse freshwater habitats worldwide. Bdelloid rotifers are among the ...
seisonacea
Science; General science
A class of the phylum Rotifera which comprises a group of little-known marine animals. They form a single family with about seven species and are found only in Europe. The ...
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