? Mygalomorphs
Sphodros rufines, an atypical tarantula
Scientific classification
Kingdom: Animalia Phylum: Arthropoda Class: Arachnida Order: Araneae Suborder: Mygalomorphae
Families
Antrodiaetidae (folding trapdoor spider) Atypidae (atypical tarantula) Ctenizidae (trapdoor spider) Cyrtaucheniidae (wafer trapdoor spider) Dipluridae (funnel-web tarantula) Hexathelidae (venomous funnel-web tarantula) Mecicobothriidae (dwarf tarantulas) Theraphosidae (tarantula) Sphodros_rufines. ... Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms. ... Phyla Porifera (sponges) Ctenophora (comb jellies) Cnidaria (coral, jellyfish, anenomes) Placozoa (trichoplax) Subregnum Bilateria (bilateral symmetry) Acoelomorpha (basal) Orthonectida (flatworms, echinoderms, etc. ... Subphyla and Classes Subphylum Trilobitomorpha Trilobita - Trilobites (extinct) Subphylum Chelicerata Arachnida - Spiders, Scorpions, etc. ... 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. ... For other uses, see Spider (disambiguation). ... Genera Atypus Sphodros Atypus piceus The atypical tarantulas or purseweb spiders (family Atypidae) consist of only two genera. ... Genera Bothriocyrtum Cyclocosmia Ummidia Trapdoor spiders (family Ctenizidae) are medium-sized mygalomorph spiders that construct burrows with a cork-like trapdoor made of soil, vegetation and silk. ... Genera See text The wafer trapdoor spiders (family Cyrtaucheniidae) are a widespread family of spider that lacks the thorn-like spines on tarsi and metatarsi I and II (the two outermost leg segments) found in true trapdoor spiders (Ctenizidae). ... Genera See text Funnel-web tarantulas (family Dipluridae) resemble other mygalomorphs in having downward stabbing fangs and two pairs of booklungs. ... or It has been suggested that this article or section be merged with Sydney funnel-web spider. ... Genera Subfamily Acanthopelminae    Acanthopelma Subfamily Aviculariinae    Avicularia    Ephobopus    Pachistopelma    Psalmopoeus    Tapinauchenius Subfamily Eumenophorinae    Anoploscelus    Batesiella    Citharischius    Encyocrates    Eumenophorus    Hysterocrates    Loxomphalia    Loxoptygus    Monocentropus    Myostola    Phoneyusa    Polyspina Subfamily Harpactirinae    Ceratogyrus    Coelogenium    Eucratoscelus    Harpactira    Pterinochilus Subfamily Ischnocolinae    Chaetopelma    Cratorrhagus    Heterothele    Ischnocolus    Nesiergus    Plesiophrictus/Neoplesiophrictus Subfamily Ornithoctoninae    Citharognathus    Cyriopagopus    Haplopelma    Lampropelma    Ornithoctonus    Phormingochilus Subfamily...

The Mygalomorphae, (also called the Orthognatha), are an infraorder of spiders. The latter name comes from the orientation of the fangs which point straight down and do not cross each other (cf araneomorph). This suborder includes the heavy bodied, stout legged spiders popularly known as tarantulas. They have ample poison glands that lie entirely within their chelicerae. Their chelicerae and fangs are large and powerful. Occasionally members of this suborder will even kill small fish, small mammals, etc. Most members of this infraorder occur in the tropics and subtropics, but their range can extend farther north, e.g. into the southern and western regions of the United States. Scientific classification or biological classification refers to how biologists group and categorize extinct and living species of organisms. ... Suborders Araneomorphae Mesothelae Mygalomorphae See the taxonomy section for families Spiders are [invertebrate] [animal(s) that produce [spider silk|silk], have [eight] legs and no wings. ... Fang may mean: One of the Beti-Pahuin ethnic groups of Central Africa; A pointed tooth; A transliteration of Chinese Family Names æ–¹,防,房 etc. ... The Araneomorphae, previously called the Labidognatha, are a suborder of spiders. ... Genera Subfamily Acanthopelminae    Acanthopelma Subfamily Aviculariinae    Avicularia    Ephobopus    Pachistopelma    Psalmopoeus    Tapinauchenius Subfamily Eumenophorinae    Anoploscelus    Batesiella    Citharischius    Encyocrates    Eumenophorus    Hysterocrates    Loxomphalia    Loxoptygus    Monocentropus    Myostola    Phoneyusa    Polyspina Subfamily Harpactirinae    Ceratogyrus    Coelogenium    Eucratoscelus    Harpactira    Pterinochilus Subfamily Ischnocolinae    Chaetopelma    Cratorrhagus    Heterothele    Ischnocolus    Nesiergus    Plesiophrictus/Neoplesiophrictus Subfamily Ornithoctoninae    Citharognathus    Cyriopagopus    Haplopelma    Lampropelma    Ornithoctonus    Phormingochilus Subfamily... The skull and crossbones symbol traditionally used to label a poisonous substance. ... The chelicerae of spiders are the mouth parts from which the fangs extend. ... Groups Conodonta Hyperoartia Petromyzontidae (lampreys) Pteraspidomorphi (early jawless fish) Thelodonti Anaspida Cephalaspidomorphi (early jawless fish) Galeaspida Pituriaspida Osteostraci Gnathostomata (jawed vertebrates) Placodermi Chondrichthyes (cartilaginous fish) Acanthodii Osteichthyes (bony fish) Actinopterygii (ray-finned fish) Sarcopterygii (lobe-finned fish) Actinistia (coelacanths) Dipnoi (lungfish) A fish is a poikilothermic (cold-blooded) water-dwelling... Orders Subclass Multituberculata (extinct) Plagiaulacida Cimolodonta Subclass Palaeoryctoides (extinct) Subclass Triconodonta (extinct) Subclass Eutheria (includes extinct ancestors)/Placentalia (excludes extinct ancestors) Afrosoricida Artiodactyla Carnivora Cetacea Chiroptera Cimolesta (extinct) Creodonta (extinct) Condylarthra (extinct) Dermoptera Desmostylia (extinct) Embrithopoda (extinct) Hyracoidea Insectivora Lagomorpha Litopterna (extinct) Macroscelidea Mesonychia (extinct) Notoungulata (extinct) Perissodactyla Pholidota Plesiadapiformes... The tropics are the geographic region of the Earth centered on the equator and limited in latitude by the two tropics: the Tropic of Cancer in the north and the Tropic of Capricorn in the southern hemisphere. ... The subtropics (also known as semitropics) are the geographic regions of the Earth immediately north and south, respectively, of the two tropics: the Tropic of Cancer and the Tropic of Capricorn - i. ...

For more pictures, see The Spider Gallery

Spiders in the Suborder Mesothelae include the families Liphistiidae, Arthrolycosidae, and Arthromygalidae. They also belong to the Order Araneae. Suborders Araneomorphae Mesothelae Mygalomorphae See the taxonomy section for families Spiders are [invertebrate] [animal(s) that produce [spider silk|silk], have [eight] legs and no wings. ... The Liphistiidae are the most primitive living spiders, placed in their own suborder, called the Mesothelae. ...