Vermes ("worms") is an obsolete taxon used by Carolus Linnaeus and Jean-Baptiste Lamarck for all non-arthropod invertebrate animals. Linnaeus divided the group as follows: A worm is an elongated soft-bodied invertebrate animal. ... A taxon (plural taxa), or taxonomic unit, is a grouping of organisms (named or unnamed). ... Carolus Linnaeus Carl Linnaeus, also known after his ennoblement as Carl von Linné ▶(?), and in English usually under the Latinized name Carolus Linnaeus (May 23, 1707 – January 10, 1778), was a Swedish botanist who laid the foundations for the modern scheme of taxonomy. ... Jean-Baptiste Lamarck Jean-Baptiste Pierre Antoine de Monet, Chevalier de Lamarck (August 1, 1744 – December 28, 1829) was a French naturalist and an early proponent of the idea that evolution occurred and proceeded in accordance with natural laws. ... Subphyla and Classes Subphylum Trilobitomorpha Trilobita - Trilobites (extinct) Subphylum Chelicerata Arachnida - Spiders, Scorpions, etc. ... Invertebrate is a term coined by Jean-Baptiste Lamarck to describe any animal without a spinal column. ... Phyla Porifera (sponges) Ctenophora (comb jellies) Cnidaria (coral, jellyfish, anenomes) Placozoa (trichoplax) Subregnum Bilateria (bilateral symmetry) Acoelomorpha (basal) Orthonectida (flatworms, echinoderms, etc. ...

• Intestina
• Mollusca
• Testacea
• Lithophyta
• Zoophyta

Appart from the Mollusca (molluscs), Linnaeus' included a very diverse and rather mismatched assemblage of animals on the categories. The Intestina group encompassed various parasitic animals, shelled molluscs were placed in the Testacea, together with barnacles and tube worms. Cnidarians (jellyfish and corrals), echinoderms, polychaetes, and even the hagfish, a primitive vertebrate, where spread across the other categories. After Linnaeus, and especially with the advent of Darwinism, it became apparent that a lot of the Vermes-animals are not at all closely related. Historically, systematic works on phylum-level since Linnaeus has largely been about splitting up Vermes and sorting the animals into natural systematic units, a work that still goes on today. Orders Ascothoracica Acrothoracica Thoracica Rhizocephala A barnacle is a type of arthropod belonging to infraclass Cirripedia in the subphylum Crustacea and is hence distantly related to crabs and lobsters. ... The name tube worm describes several groups of marine worms that secrete tubes which they then inhabit, emerging to filter feed. ... Classes Anthozoa - Corals and sea anemones Cubozoa - Sea wasps or box jellyfish Hydrozoa - Hydroids, hydra-like animals Scyphozoa - Jellyfish Cnidaria (from New Latin cnida nematocyst, fr. ... Classes Asteroidea Concentricycloidea Crinoidea Echinoidea Holothuroidea Ophiuroidea Echinoderms (Echinodermata) is a phylum of marine animals found in the ocean at all depths. ... Orders Amphinomida Capitellida Chaetopterida Cirratulida Cossurida Ctenodrillidae Eunicida Flabelligerida Magelonida Myzostomida Nerillida Opheliida Orbiniida Orweniida Phyllodocida Pisionidae Polygordiida Protodrilida Psammodrilidae Sabellida Spionida Spintheridae Sternaspida Terebellida The Polychaeta or Polychaetes are a class of annelid worms, generally marine, with a pair of fleshy protrusions on each body segment called parapodia that... Genera Eptatretus Myxine Nemamyxine Neomyxine Notomyxine A hagfish is any of several marine chordates of the class Myxini, also known as Hyperotreti. ... Phylum (plural: phyla) is a taxon used in the classification of life, adopted from the Greek phylai the clan-based voting groups in Greek city-states. ...

Of the classes of Vermes as proposed by Linnaeus, only Mollusca (the molluscs) has been kept as a phylum, and its composition has changed almost entirely. Though we today may view Linnaeus early classification of the soft-bodied organisms as rather primitive, it was revolutionary in its day. A number of the organisms classified as Vermes by Linnaeus where very poorly known, a number of them was not even viewed as animals. Classes Caudofoveata Aplacophora Polyplacophora - Chitons Monoplacophora Bivalvia - Bivalves Scaphopoda - Tusk shells Gastropoda - Snails and Slugs Cephalopoda - Squids, Octopuses, etc. ... Classes Caudofoveata Aplacophora Polyplacophora - Chitons Monoplacophora Bivalvia - Bivalves Scaphopoda - Tusk shells Gastropoda - Snails and Slugs Cephalopoda - Squids, Octopuses, etc. ... The term is used to describe animals without skeleton, roughly coresponding to the group Vermes as proposed by Carl von Linné. All animals have muscles, but since muscles can only pull, never push, a number of animals have developed hard parts that the muscles can pull on, commonly called skeletons. ...