The cephalothorax is an Anatomical drawing of the human muscles from the Encyclopédie. Anatomy (from the Greek anatome, from ana-temnein, to cut up), is the branch of biology that deals with the structure and organization of living things; thus there is animal anatomy ( zootomy) and plant anatomy ( phytonomy). The major branches... anatomical term used of Orders Acarina Amblypygi Araneae Opiliones Palpigradi Pseudoscorpionida Ricinulei Schizomida Scorpiones Solifugae Uropygi The arachnids, Arachnida, are a class of invertebrate animals in the subphylum Chelicerata. Arachnids are named for the mythological figure Arachne. They are chiefly terrestrial arthropods, some 65,000 to 73,000 species including the spiders, scorpions, harvestmen... arachnid and Orders Not necessarily a complete list: Leptostraca Stomatopoda Bathynellacea Thermosbaenacea Mysidacea Cumacea Amphipoda Isopoda Tanaidacea Euphausiacea Amphionidacea Decapoda Peracarida The Malacostraca are the largest subgroup of crustaceans, and include most of the animals that non-experts recognise as crustaceans, including the decapods (such as crabs, mole crabs, lobsters and true... malacostracan Subphyla and Classes Subphylum Trilobitomorpha Trilobita - Trilobites (extinct) Subphylum Chelicerata Arachnida - Spiders, Scorpions, etc. Merostomata - Horseshoe crabs, etc. Pycnogonida - Sea Spiders Subphylum Myriapoda Chilopoda - Centipedes Diplopoda - Millipedes Pauropoda Symphyla Subphylum Hexapoda Insecta - Insects Order Diplura Order Collembola - Springtails Order Protura Subphylum Crustacea Remipedia Cephalocarida Branchiopoda Ostracoda Mystacocarida Copepoda Branchiura Cirripedia... arthropods for the first major body section. It is derived from the Fusion may refer to: the merging of two or more entities into a single one For the combining of two atomic nuclei into a single nucleus (with possible emission of radioactivity), see nuclear fusion cold fusion refers to a once hypothetical but now largely discredited form of nuclear fusion See... fusion of the head (cephalon) and the trunk (thorax), and therefore includes all the mouthparts, Antennae (singular antenna), are the paired appendages connecting to the first (and in crustaceans also to the second) segment of the head of the members of all subphyla of the arthropods except Chelicerata. Also the members of the order protura lack them. antennae of a luna moth Antennae are jointed... antennae, and the thoracic appendages, such as the legs of a Families Suborder Mesothelae     Liphistiidae (primitive burrowing spiders) Suborder Mygalomorphae     Atypidae (atypical tarantula)     Antrodiaetidae (folding trapdoor spider)     Mecicobothriidae (dwarf tarantulas)     Hexathelidae (venomous funnel-web tarantula)     Dipluridae (funnel-web tarantula)     Cyrtaucheniidae... spider or Clawed lobsters comprise a family (Nephropidae) of large marine crustaceans. They are not to be confused with spiny lobsters, which have no claws (chelae), and are not closely related. The closest relatives of clawed lobsters are the reef lobster Enoplometopus and the three families of freshwater crayfish. Smaller varieties are... lobster. The remainder of the body is the The abdomen (from the Latin word meaning belly) is the part of the body between the pelvis and the thorax. The front of the abdomen is the abdominal cavity, which is separated from the thoracic cavity by the diaphragm. The lining of the abdomen is called the peritoneum, and the... abdomen, which may also bear lateral appendages as well as the This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. If an article link referred you here, you might want to go back and fix it to point directly to the intended page. The word tail in the English language... tail, if present. In the Malacostraca, the cephalothorax is typically covered by protective The term carapace refers to a dorsal section of an exoskeleton or shell, in a number of animal groups. Crustaceans In crustaceans, the carapace is a part of the exoskeleton that covers the cephalothorax. It is particularly well developed in lobsters and crabs. Tortoises Categories: Biology stubs ... carapace.