Arthropod spider with tail

The spider-tailed horned viper ( Pseudocerastes urarachnoides) is a species of viper, a venomous snake, in the family Viperidae and genus Pseudocerastes. The genus is commonly known as "false-horned vipers". [3] The species is endemic to western Iran [4] and over the border region with Iraq.

10. Red or yellow markings. 8 or more; No. One inch or more. 7, 13, 14, 15. Identify the creature you found with this quick and easy bug identification guide to commonly found insects, bugs, arthropods, and related creatures.A spider can inject venom into prey using its fangs, while a scorpion uses its tail as a stinger. Different from the claws on scorpions, the pedipalps on ...Habitat. Mastigoproctus giganteus lives in the southern US and in Mexico at elevations up to 6000 feet. [6] It preys on various insects, worms, and slugs. [7] It is an efficient predator that feeds at night on a variety of Arthropods, primarily insects such as cockroaches and crickets, as well as millipedes and other arachnids.6) Water Bug. Public domain. Of all the insects on this list, water bugs may be the ones that you want the least. They can grow quite large (some have reached upwards of half a foot in length, though 3 to 4 inches is more common for an adult that’s been around for a couple of years), and they’re predatory.Arthropods are a motley crew: cockroaches, crabs, butterflies, beetles, centipedes, scorpions, shrimp, spiders, lobsters, lice, ticks, termites, potato bugs, and sea monkeys (a.k.a., brine shrimp) — they're all examples of arthropods. These evolutionary cousins can trace their family history back to a common ancestor that lived in the ancient oceans 600 million years ago, beforeMost arthropods are insects. The phylum also includes spiders, centipedes, and crustaceans. The arthropod body consists of three segments with a hard exoskeleton and jointed appendages. Terrestrial arthropods have adaptations for life on land, such as trachea or book lungs for breathing air.Spiders’ spinning skills have fascinated mankind since ancient times. These animals owe this ability to unique appendages named spinnerets. These structures are connected to silk-producing glands and are responsible for silk extrusion and manipulation, granting spiders the ability to use the threads for functions far beyond web-building. In …Arthropods include the Hexapoda (insects), the Crustacea (lobsters, crabs, and shrimp), the Chelicerata (the spiders and scorpions), and the Myriapoda (the centipedes and millipedes). Arthropods have a segmented body plan that contains fused segments divided into regions called tagma. Arthropods have an open circulatory system and can use book ...

Spiders are arachnids, a class of arthropods that also includes scorpions, mites, and ticks. There are more than 45,000 known species of spiders, found in habitats all over the world. There’s a ...Wasp stinger, with droplet of venom. A stinger (or sting) is a sharp organ found in various animals (typically insects and other arthropods) capable of injecting venom, usually by piercing the epidermis of another animal.. An insect sting is complicated by its introduction of venom, although not all stings are venomous.Bites, which can introduce saliva as well as …Experts can't identify them without the specimen. I can't persuade somebody that I have a new species of spider, for example, by sending a picture of it. He or she wants to see the specimen." Other Methods for Collecting Arthropod Specimens. A lot of insects are attracted to yellow. A yellow pan trap is a quick and easy way to catch them. Set ... Unlike true insects, spiders have 8 legs rather than 6. Types of Insects (with Name and Picture) Let’s look in more detail at some common groups of insects on this list – species of crawling and flying insects. Ants. Ants are one of the most common insects and include many species, varying in size and color.Scorpion, any of approximately 1,500 elongated arachnid species characterized by a segmented curved tail tipped with a venomous stinger at the rear of the body and a pair of grasping pincers at the front. Primarily nocturnal, scorpions often play the role of evildoers in fables and legends.Only 2 groups of spiders in Texas are considered poisonous to humans. Spiders eat insects and other arthropods. A physician should treat bites from either of these two spiders as soon as possible. Brown Recluse. Loxosceles reclusa So named for it's shy nature, the Brown Recluse spider tends to hide during the day and is most active at night.

Arachnid, any member of the arthropod group that includes spiders, daddy longlegs, scorpions, and mites and ticks, as well as lesser-known subgroups. Some arachnids transmit diseases to humans and plants. Learn more about the physical features, behavior, natural history, and evolution of arachnids.This phylum includes insects like butterflies and beetles, crustaceans like crabs and lobsters, and chelicerates like spiders and scorpions. Arthropods are found in all parts of the world in a wide variety of environments, from the deep sea to the frozen arctic regions. Over 800,000 species of arthropods have been identified, but scientists ...Scorpion, any of approximately 1,500 elongated arachnid species characterized by a segmented curved tail tipped with a venomous stinger at the rear of the body and a pair of grasping pincers at the front. Primarily nocturnal, scorpions often play the role of evildoers in fables and legends.Scorpions are predatory arachnids of the order Scorpiones.They have eight legs, and are easily recognized by a pair of grasping pincers and a narrow, segmented tail, often carried in a characteristic forward curve over the back and always ending with a stinger.The evolutionary history of scorpions goes back 435 million years.They mainly live in deserts …

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Arthropod bites and stings commonly cause minor, usually self-limited reactions; however, some species are associated with more severe complications. Spider bites are rarely life-threatening.8 Feb 2018 ... THE picture above is of one of the five known specimens of Chimerarachne yingi, a newly discovered arthropod that lived 100m years ago, ...Spider bites may seem scary — but the good news is that most spiders are harmless to people. In rare cases, poisonous spider bites can cause severe pain and other more serious symptoms.The Ultimate Guide To Arachnids. Spiders aren’t the only arachnids; the arachnid in the above photo is a solifuge. An arachnid is an invertebrate animal in the class Arachnida. Arachnida itself is part of a larger group of animals known as arthropods. Like all arthropods, arachnids have jointed legs, segmented bodies, and hard, external ...Ancient sea scorpions belong to a group of large arthropods called eurypterids. These ancient animals are the largest arthropods in history. Their name comes from their resemblance to today’s scorpions. They lived as far back as 444 million years ago. Eurypterids were predators to be feared.as the wind. The sea spider, another arachnid, lives on the ocean floor. The trapdoor spider digs o hole in the ground, covers it with a silk trapdoor, camouflages the trapdoor with leaves, and waits for its prey to walk across the trapdoor. When its prey passes above, the spider feels the vibrations and opens the trapdoor to make the capture.

The common earwig is an omnivore, eating plants and ripe fruit as well as actively hunting arthropods. To a large extent, this species is also a scavenger, feeding on decaying plant and animal matter if given the chance. Observed prey include largely plant lice, but also large insects such as bluebottle flies and woolly aphids. Cobweb spiders (Theridiidae), like this male (left) and female (right) house spider (Parasteatoda tepidariorum), are common members of the household arthropod fauna. They create irregular webs ...• Arthropoda (insects, spiders, crayfish, milli-pedes) • Nematoda (roundworms, trichina) • Platyhelminthes (flatworms, flukes, tapeworms) • Mollusca (snails, slugs, clams) Insects belong to the phylum Arthropoda. Arthropods are a very important group of animals, as they represent more than three-fourths of the animal species known to exist.An Arthropod is a segmented animal that can be characterized as having an exoskeleton. Arthropods are a group of invertebrates that form the largest Phyla of all our planets living organisms. Arthropods account for 3 out 4 species of animal known to man. The biomass of arthropods far outweighs that of the vertebrate group of animals. Unlike true insects, spiders have 8 legs rather than 6. Types of Insects (with Name and Picture) Let’s look in more detail at some common groups of insects on this list – species of crawling and flying insects. Ants. Ants are one of the most common insects and include many species, varying in size and color.Spiders are arachnids, a class of arthropods that also includes scorpions, mites, and ticks. There are more than 45,000 known species of spiders, found in habitats all over the world. There’s a ... Spiders are arthropods that belong to the class of animals named Arachnida and order Araneae. Spiders are grouped into various genera. These genera include species such as funnel-web spiders, orb-weaver spiders, sac spiders, wolf spiders, and hunting spiders. Some of the most frightening spiders are tarantulas in the Theraphosidae family.9. A horseshoe crab’s pointed tail is not for self-defense. Horseshoe crabs are easily jostled by ocean currents and waves — and each other. When a crab gets stuck upside-down, it uses its tail, called a telson, to flip over! Horseshoe crabs can also use their telson as a rudder to help steer as they swim upside down.Long-tailed grass lizards are a popular pet among reptile enthusiasts. Bando26, C-BY-SA-3.0 via Wikimedia Commons. 1. Appearance. The six or so species in the genus Takydromus are easily recognized by their extremely long tail, which is five to seven times longer than the head and body. The head is long, acute, and high, the …27 Species Found in Mexico. Aphonopelma mooreae. (North American Cobalt Tarantula) 1 pictures. Araneus pegnia. 10 pictures. Argiope aurantia. (Black and Yellow Garden Spider) 117 pictures.Identification of Insects and their Relatives: Insects are part of the phylum of animals called Arthropoda. All arthropods posses an exoskeleton, bi-lateral symmetry, jointed appendages, segmented bodies, and specialized appendages. The major arthropod classes can be separated by comparing their number of body regions, legs, and antennae.

What arachnid is also known as a harvestman? pedipalps. Arachnids are equipped with structures called ______ that help guide food into their mouths. centipedes. The arthropods found in class Chilopoda are ______? chelicerae. A spider will capture and crush its prey using its ______? pseudoscorpion. An arachnid that resembles a scorpion but ...

Scorpions. scorpion.jpg Centruroides vittatus. Scorpions have 4 pairs of legs, two pinchers and a segmented tail ending in a poison gland with a stinger.The spider-tailed horned viper ( Pseudocerastes urarachnoides) is a species of viper, a venomous snake, in the family Viperidae and genus Pseudocerastes. The genus is commonly known as "false-horned vipers". [3] The species is endemic to western Iran [4] and over the border region with Iraq. A brain, The arthropod skeleton is composed of _____. cellulose chitin peptidoglycan glycogen and more. Study with Quizlet and memorize flashcards containing terms like A(n) _____ is an example of a mollusc that does not have a shell. A.) Octopus B.) Snail C.) Spider D.) Oyster, A characteristic of arthropods that has allowed for their great ...Class Arachnida. Arachnids are a class of arthropods that contain some large orders such as spider, ticks/mites, harvestmen, scorpions, and more. They can be distinguished from insects by having 4 pairs of legs, no antennae, a cephalothorax & abdomen, and chelicerae instead of mandibles. Spiders: Order Araneae. Latrodectus mactens.The spider-tailed horned viper ( Pseudocerastes urarachnoides) is a species of viper, a venomous snake, in the family Viperidae and genus Pseudocerastes. The genus is commonly known as "false-horned vipers". [3] The species is endemic to western Iran [4] and over the border region with Iraq.Introduction Spiders, along with daddy long legs, ticks, mites, and scorpions, belong to the class Arachnida. They are beneficial animals that feed on a variety of insects and other arthropods, including many we consider pests. ... Penultimate instar—the next-to-last developmental stage of an arthropod before it molts into an adult. Procurved ...This phylum, which includes crabs, insects, spiders, and millipedes, is often considered to be the most successful animal phylum in the history of life on Earth Edgecombe, 2019, 2020; Edgecombe ...In looking at arthropod examples, you’ll see they make up a large portion of animals on Earth. ... whip tailed scorpions; wind scorpions; Crustaceans (Subphylum Crustacea) ... Many common insects such as ants, flies, spiders and more are easy to find and observe. Whether you love to garden or play in the great outdoors, there are many …

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The name "springtail" comes from both their ability to jump, as mentioned above and these small invertebrates' furca, a forked tail-like appendage attached to the abdomen of many springtails. The "grasshopper" like creatures use their furcae as tiny springs, allowing them to jump away from danger like miniature grasshoppers or fleas.Arachnid, any member of the arthropod group that includes spiders, daddy longlegs, scorpions, and mites and ticks, as well as lesser-known subgroups. Some arachnids transmit diseases to humans and plants. Learn more about the physical features, behavior, natural history, and evolution of arachnids.There are over 60,000 known species in this order. Like most arthropods, arachnids have eight jointed legs and an exoskeleton. Arachnids have two sections to thier bodies - the prosoma and the opisthosoma. The promosa is the front part of the body. The promosa includes the arachnids head and thorax or cephalothorax. Arachnids have four pairs of walking legs, a pair of jointed jaws with fangs ...Arthropods are classified into five classes, with the largest three comprised of insects, arachnids, and crustaceans. ... The metasoma is the thin tail part, while the mesosoma is the thick ...Scorpion-tailed spiders, sometimes called tailed spiders, are found all over Australia. The tip of the abdomen does not sting and is soft, so the movement of the tail is a bit of a fake-out. They hand out in groups and like to build their webs under low foliage and near water. Wanna learn more? Check out the Victorian Museum's page:The word arthropod comes from the Greek ... fixed numbers of segments some of which were specialized, tail fins, and gills that were very different from those of arthropods. ... and by the Piaroa Indians of southern Venezuela, after the highly irritant hairs - the spider's main defense system - are removed. Humans also unintentionally eat ...Arachnid, any member of the arthropod group that includes spiders, daddy longlegs, scorpions, and mites and ticks, as well as lesser-known subgroups. Some arachnids transmit diseases to humans and plants. Learn more about the physical features, behavior, natural history, and evolution of arachnids.Arachnura is a genus of orb-weaving spiders of Australasia, with one species found in Africa and Madagascar. These spiders mimic litter, like fallen flowers, twigs or dead leaves. They stay at the middle of their web day and night. Among the common names are Drag-tailed spider, Tailed spider, Scorpion-tailed spider and Scorpion spider. They do curl up their tail when disturbed, but this tail ... Identification Key Used to Identify Orders of Common Arthropods. (adults > 2-5mm in total body length) 1a 6 legs, three body sections Go to 3. 1b Not exactly as above Go to 2. 2a 8 legs, two body segments, no tail Araneae. 2b 10 legs, stinging tail, pinchers on front appendages.Subphylum Myriapoda. Subphylum Myriapoda includes arthropods with numerous legs. Although the name is hyperbolic in suggesting that myriad legs are present in these invertebrates, the number of legs may vary from 10 to 750. This subphylum includes 13,000 species; the most commonly-found examples are millipedes and centipedes.Arthropods include the Hexapoda (insects), the Crustacea (lobsters, crabs, and shrimp), the Chelicerata (the spiders and scorpions), and the Myriapoda (the centipedes and millipedes). Arthropods have a segmented body plan that contains fused segments divided into regions called tagma. Arthropods have an open circulatory system and can use book ... ….

The scorpion-tailed spider is a small, venomous arachnid that is found in tropical regions aroud the world. It gets its name from the long, curved tail that resembles a scorpion’s stinger. The spider’s venom is not considered to be dangerous to humans, but it can be painful if it injected. The spider usually preys on insects and other small ...Lymphocytoma cutis is a rare pseudolymphoma that has also been known as ‘ cutaneous lymphoid hyperplasia ’ or ‘lymphadenosis benigna cutis’. It is a process that simulates a cutaneous lymphoma (blood cell cancer developing in the skin), but it behaves in a harmless manner. It appears to be a reactive process.Identification Key Used to Identify Orders of Common Arthropods. (adults > 2-5mm in total body length) 1a 6 legs, three body sections Go to 3. 1b Not exactly as above Go to 2. 2a 8 legs, two body segments, no tail Araneae. 2b 10 legs, stinging tail, pinchers on front appendages. Each spider was about 3mm long with a tail measuring up to 5mm. “Maybe the tail originally had a sensory function; it is covered in short hairs, but when spiders changed to lifestyles like being ...Additionally, crustaceans are also the largest arthropods found today; one such behemoth is the Japanese Spider Crab, with a leg span of 13 feet long. Japanese Spider Crab mount. It gets its name ... Experts can't identify them without the specimen. I can't persuade somebody that I have a new species of spider, for example, by sending a picture of it. He or she wants to see the specimen." Other Methods for Collecting Arthropod Specimens. A lot of insects are attracted to yellow. A yellow pan trap is a quick and easy way to catch them. Set ... Arachnura, also known as drag-tailed spider, scorpion-tailed spider and scorpion spider, is a genus of orb-weaver spiders that was first described by A. Vinson in 1863. [2] They …7 Feb 2013 ... Arthropods: Arachnida – Spider Biology. Chapt. 7-2. In: Glime, J. M. ... tail: Prionodon densus, Leucodon cushion: Leucobryum – deciduous ...Phylum Arthropoda. The name “arthropoda” means “jointed feet.” The name aptly describes the invertebrates included in this phylum. Arthropods have probably always dominated the animal kingdom in terms of number of species and likely will continue to do so: An estimated 85 percent of all known species are included in this phylum! Arthropod spider with tail, Arthropod. True crabs. Pollinator. Ambush predator. Insectivore. of 2,530. Find Arthropod stock images in HD and millions of other royalty-free stock photos, illustrations and vectors in the Shutterstock collection. Thousands of new, high-quality pictures added every day., Crab spider #2 Scorpions. These 8-legged arachnids are thought to be dangerous to humans. They are characterized by their legs, large pedipalps on the anterior end, and a long, thin, segmented abdomen with a stinger at the tip. But in fact, only 25 out of 2650 species are capable of killing a man. These include: Black fat-tailed scorpion , Presumably, the specificity and constancy of the patterns in different areas of the exoskeleton are functionally relevant, indicating an adaptation to different tactile …, Arthropod - Molting, Reproduction, Adaptations: With few exceptions, the sexes are separate in arthropods. The paired sex organs, or gonads, are connected directly to ducts that open onto the ventral surface of the trunk. Sperm is commonly transferred to the female within sealed packets known as spermatophores. Arthropod eggs are usually rich in yolk., Only 2 groups of spiders in Texas are considered poisonous to humans. Spiders eat insects and other arthropods. A physician should treat bites from either of these two spiders as soon as possible. Brown Recluse. Loxosceles reclusa So named for it's shy nature, the Brown Recluse spider tends to hide during the day and is most active at night. , Chelicera: The first pair of appendages which in spiders has become modified into a stout basal part and a smaller distal segment, the fang. Pedipalp: The second pair of …, There are millions of species of arthropods. The most diverse group of arthropods is the hexapods, a group that includes insects. Other groups of arthropods include the crustaceans, chelicerates, and myriapods . Get to know the arthropods through pictures of spiders, scorpions, horseshoe crabs, katydids, beetles, millipedes, and more. 01., 27 Apr 2018 ... The arthropod has been named Chimerarachne after Chimera, a monster ... None of the living species from the spider family has a tail, but ..., Scorpion-tailed Spider. A native Australian arachnid, The Scorpion-tailed Spider (Arachnura higginsi) grows to 0.6 inches in the case of females and 0.1 inches in the case of males. Females of this atypical spider species are highly similar to scorpions and one of the reasons why the species has been named after scorpions. , Arthropod - Muscles, Appendages, Locomotion: Arthropods are unusual among invertebrates; they lack locomotory cilia, even as larvae. Most arthropods move using their segmental appendages, the exoskeleton, and muscles. Appendages of arthropods have been adapted for all types of locomotion—walking, pushing, running, swimming, and …, Arthropod bites and stings commonly cause minor, usually self-limited reactions; however, some species are associated with more severe complications. Spider bites are rarely life-threatening., Unlike true insects, spiders have 8 legs rather than 6. Types of Insects (with Name and Picture) Let’s look in more detail at some common groups of insects on this list – species of crawling and flying insects. Ants. Ants are one of the most common insects and include many species, varying in size and color., Introduction Spiders, along with daddy long legs, ticks, mites, and scorpions, belong to the class Arachnida. They are beneficial animals that feed on a variety of insects and other arthropods, including many we consider pests. ... Penultimate instar—the next-to-last developmental stage of an arthropod before it molts into an adult. Procurved ..., 9. A horseshoe crab’s pointed tail is not for self-defense. Horseshoe crabs are easily jostled by ocean currents and waves — and each other. When a crab gets stuck upside-down, it uses its tail, called a telson, to flip over! Horseshoe crabs can also use their telson as a rudder to help steer as they swim upside down., "arachne" and "uro" meaning "tail". The tails are only present on females ... Phylum: Arthropoda Class: Insecta Order: Hemiptera Suborder: Heteroptera Family ..., The largest number of species in the animal kingdom belongs to the phylum Arthropoda. Members of this phylum, called arthropods, include such animals as spiders, ticks, centipedes, lobsters, and insects. All animals in the phylum have an external skeleton, a segmented body, and jointed appendages. The external body skeleton of arthropods is ... , Arachnida (Spiders, scorpions, mites, and ticks) Phylum Arthropida. Class Chelicerata. Subclass Arachnida. Number of families 648. Thumbnail description Highly recognizable and populous eight-legged invertebrates with two body parts (a prosoma and an abdomen), pedipalps, book lungs or tracheae, sometimes poisonous fangs, and generally the ability …, Spiders are arachnids, a class of arthropods that also includes scorpions, mites, and ticks. There are more than 45,000 known species of spiders, found in habitats all over the world. There’s a ... , No tail-drag impressions are apparent. If the 12 pairs of tracks were interpreted as a series of 11 hind foot hops, then the mean length of each hop would be ~3.9 cm. ... These neoichnological observations raise interesting questions about the preservation of spider and other arthropod traceways in dune sediments. Firstly, most dune deposits ..., Nov 18, 2022 · Examples of arthropods include insects such as flies, bees, beetles, and ants; crustaceans such as barnacles, crabs, lobsters and krill; myriapods such as centipedes and millipedes; arachnids such as spiders, scorpions and camel spiders, and extinct animals such as trilobites. Below is a list examples of arthropods from major groups. , Antenna: Segmented appendage attached to the head above the mouthparts, with important sensory functions, including touch, smell, and in some cases hearing. Gena: The sides of the head below the compound eyes. Frons: The front part of the head between the compound eyes and the mouthparts. Clypeus: A part of the head in between the frons …, Scorpions are arachnids and have eight legs like their cousins—spiders, mites, and ticks. They can quickly grab an insect with their pincers and whip their telson, the poisonous tip of their tail forward and sting their prey. They use their poison to kill prey and to defend against predators. Scorpions look like small lobsters and may be the first animals to move from …, An arthropod is an invertebrate animal that has an exoskeleton, a segmented body, and paired jointed appendages. Arthropods are the largest phylum in animal kingdom as they are found everywhere. Arthropods are responsible for forming the phylum of Euarthropoda. A few of the examples of the families of organisms that are an example of arthropods ..., "arachne" and "uro" meaning "tail". The tails are only present on females ... Phylum: Arthropoda Class: Insecta Order: Hemiptera Suborder: Heteroptera Family ..., covered with hard shell; long spinelike tail pres-ent. (Horseshoe crabs. Fig. 7d).....Xiphosura - Smaller forms, less than 75mm in length; body without hard shell and without spinelike tail; See below. (spiders, ticks, mites, whip scorpions, windscorpi-ons, scorpions) *immature mites and ticks have 3 pairs of legs, but only 2 defined body regions . , In biology, a tagma (Greek: τάγμα, PL: tagmata – τάγματα - body of soldiers; battalion) is a specialized grouping of multiple segments or metameres into a coherently functional morphological unit. Familiar examples are the head, the thorax, and the abdomen of insects. The segments within a tagma may be either fused (such as in the head of an insect) or …, Mites belong to arachnids which usually have 4 pairs (8 legs). But this group of mites belongs to the superfamily Eriophyoidea which includes 7 species. The mature instars, or larval stage, of four-legged mites, have two pairs of legs in the front of the body and don’t have any other legs. They are of tiny size are parasites of garlic plants., The giant isopod is one of an estimated 10,000 species of isopods! The giant isopod has no spine. It’s a crustacean — cousins of crabs and shrimp. Isopods can be tiny or huge. The giant isopod grows up to 16 inches — making it the largest isopod — while the smallest isopods are just millimeters long. Ocean-dwelling isopods have swimming ..., as the wind. The sea spider, another arachnid, lives on the ocean floor. The trapdoor spider digs o hole in the ground, covers it with a silk trapdoor, camouflages the trapdoor with leaves, and waits for its prey to walk across the trapdoor. When its prey passes above, the spider feels the vibrations and opens the trapdoor to make the capture., Spiders That Look Like Scorpions. The spiders you can confuse as scorpions include: 1. Scorpion-Tailed Spiders. Scorpion-tailed spiders belong to the Arachnura family, better known as the scorpion-tailed spider or drag tiled spider. They are from the orb weaver family, first described in 1863. These spiders are distributed around the world ..., Yellow garden spider. Order: Araneae. Family: Araneidae. Genus and species: Argiope aurantia Lucas. This is a brightly colored and conspicuous species frequently observed in open, sunny areas, especially in late summer and early fall. Female yellow garden spiders can reach a length of one inch or more. The carapace is silvery-white, and the ..., Arachnida (Spiders, scorpions, mites, and ticks) Phylum Arthropida. Class Chelicerata. Subclass Arachnida. Number of families 648. Thumbnail description Highly recognizable and populous eight-legged invertebrates with two body parts (a prosoma and an abdomen), pedipalps, book lungs or tracheae, sometimes poisonous fangs, and generally the ability …, Two teams of scientists on Monday unveiled a "missing-link" species of spider with a scorpion-like tail found perfectly preserved in amber in Southeast Asia's forests …