Clipart images of several species of spiders, mites, scorpions, and hermit crabs. These animals are members of the arachnid class of insects.
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Acarida
"An order of the class Arachinida, includes those insects, as the mites, ticks, itch-insects, etc., which are without a definite line of demarktationbetween the unsegmented abdomen appearing united in... |
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Agnostus Nudus
"Four stages in the development of the trilobite Agnostus nudus. A, Youngest stage with no mesosomatic somites; B and C, stages with two mesosomatic somites between the prosomatic and telsonic carapa... |
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Araneida
"Mygale cæmentaria, typical of Araneida. A, female, natural size: At, cheliceræ; IV', pedipalpi; V', VI' maxillary feet; VII', VIII', thoracic feet; Cth, cephalothorax. B, last joint of pe... |
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Arterial System
"Diagram of the arterial system of A, Scorpio, and B, Limulus. The Roman numerals indicate the body somites and the two figures are adjusted for comparison. ce, Cerebral arteries; sp, supra-spinal o... |
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Atypus
"Atypus sulzeri. (Vertical line shows natural size.)"-Whitney, 1902.... |
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Cheese-mite
"The Cheese-mite, Acarus domesticus, and others are parasitic upon or beneath the skin of man and other animals." — Goodrich, 1859... |
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Cobweb
A spider's web or net.... |
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Cobweb
A spider's web.... |
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Crab, Horseshoe
Horseshoe crabs represent an order called Xiphosura, from the fact that the end of the abdomen is furnished with a long sword-like spine. ... |
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Crab, Horseshoe (Adult)
An illustration of an adult horseshoe crab from the dorsal aspect. The horseshoe crab or Atlantic horseshoe crab (Limulus polyphemus) is a marine chelicerate arthropod. Despite its name, it is more c... |
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Crab, Horseshoe (Young)
An illustration of a young horseshoe crab from the dorsal aspect. The horseshoe crab or Atlantic horseshoe crab (Limulus polyphemus) is a marine chelicerate arthropod. Despite its name, it is more cl... |
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Crab-louse
The crab louse can live in almost any form of human hair, leading to its other common name of pubic louse.... |
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Crustacean, Scorpion
Scorpions are any arachnid of the order Scorpionida. Unlike the majority of arachnid species, scorpions are viviparous. The young are born one by one, and the brood is carried about on its mother's b... |
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Cryptostemma Karschii
"Cryptostemma Karschii, one of the Podogona. Dorsal view of male. III to VI, The third, fourth, fifth and sixth appendages of the prosoma. a, Movable (hinged) sclerite (so-called hood) overhanging the... |
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Cryptostemma Karschii
"Cryptostemma Karschii, anterior aspect of the prosoma with the "hood" removed. I to IV, first to fourth appendages of the prosoma; a, basal segment of the second pair of appendages meeting its fello... |
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Cryptostemma Karschii
"Cryptostemma Karschii, one of the Podogona. Vental view. I to VI, The six pairs of appendages of the prosoma, the last three cut short. 1, 2, 3, 4, The four somites of the opisthosoma. a, Visible hoo... |
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Cryptostemma Karschii
"Cryptostemma Karschii. Extremity of the fifth pair of appendages of the female for comparison with that of the male." — The Encyclopedia Britannica, 1910... |
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Dalmanites
"Dalmanites limulurus, Green. One of the Phacopidae, from the Silurian, New York." — The Encyclopedia Britannica, 1910... |
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Deiphon
"Deiphon Forbesii, Barr. One of the Cheiruridae. Silurian Bohemia." — The Encyclopedia Britannica, 1910... |
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Demodex Folliculorum
"A parasite sometimes present in the human hair follicles." —Davison, 1906... |
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Embryo
"Portion of a similar embryo at a later stage of growth. The praegenital somite, VII PrG, is still present, but has lost its rudimentary appendages; go, the genital operculum, left half; KM, the left... |
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Entosternum
"Entosternum of scorpion (Palamnaeus indus, de Geer); dorsal surface. asp, Paired anterior process of the subneural arch. snp, Sub-neural arch. ap, Anterior lateral process. lmp, Lateral median pr... |
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Entosternum
"Entosternum of one of the mygalomorphous spiders; ventral surface. Ph.N., pharyngeal notch. The posterior median process with its repetition of triangular segments closely resembles the same proces... |
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Entosternum
"Dorsal surface of an entosternum. Ph.N., pharyngeal notch." — The Encyclopedia Britannica, 1910... |
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Epeira Diadema
"A genus of spiders, the type of a family called Epeirdae. They are of those spiders which have only a pair of pulmonary sacs and spiracles; construct webs with regular meshes, formed by concentric ci... |