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Reptile Anatomy |
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Acrodont "Skull of lizard with Acrodont Dentition. One of those lizards which have the edge of the jaw, without bony aveoli on either the inner or the outer side."-Whitney, 1902... |
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Adder, Fangs and Tongue "When the animal wishes to use these teeth, they issue from this fleshy sheath, somewhat in the same manner as the claws of a cat when about to be used as weapons of offense."... |
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Alligator Skull "Skull of a member of the family Alligatoridæ, or some American member of the Crocodilidæ."-Whitney, 1902... |
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American Alligator "Head of the American Alligator (alligator Mississippiensis)." — Galloway... |
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Boa "In popular language, the name of all those large serpents which kill their prey by entwining themselves around it, and constricting it in their coils; but by zoologists of the present day, limited as... |
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Boa Constrictor Skull "Skull of Boa constrictor. a, quadrate bone; b, b, halves of lower jaw." -Cooper, 1887... |
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Brain Section of brain of turtle... |
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Brain of an Alligator In Amphibians the nervous system is but slightly developed. The cerebrum is small; the cerebellum is scarcely visible. Shown is the brain of an alligator. Labels: 1, Olfactory ganglions. 2, Cerebrum. ... |
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Branchiopod The structure of a branchiopod.... |
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Circulation of a Reptile Diagram of the circulation of the reptile. Labels: a, pulmonic, and b, somatic circulation; c, heart showing the three cavities. The arrows indicate the course of the blood current.... |
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Claw, skink In the U.S. the five-lined or blue-tailed skink is the common variety. This is a close-up of its claw.... |
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Crocodile Skull The skull of a crocodile with visible teeth.... |
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Crocodile Thoracic Region "Segment of Endoskeleton from Thoracic Region of Crocodile. C, centrum of a vertebra, over which rises the neural arch, inclosing the neural canal and ending in NS, the neural spine; Z, prezygapophysi... |
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Dragon, Red-Throated "The Red-Throated Dragon shows a large membranous expansion (b b) situated between the anterior (d d) and posterior extremities, and supported by the ribs. The dragon by this arrangement can take exte... |
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Eye of a Lizard Longitudinal section through the pineal eye of a lizard. The eye is located in the middle of the dorsal side of the head and is covered by the translucent scaled. The outer wall of the eye vesicle is ... |
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Frog, Skeleton of "The skull in reptiles is flat, and the cerebral cavity is not filled with brains. There are no ribs."... |
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Greek tortoise, skull of Skull of a Greek tortoise, showing the brain cavity.... |
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Head, Coluber The head of a snake. ... |
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Heart and Blood Vessels of a Turtle Heart and blood vessels of the turtle. Ad, right auricle; As, left auricle; Ao.d, right arch of the aorta; Ao.s, left arch of the aorta; Ap, dorsal aorta; C, carotids; Ap, pulmonary arteries.... |
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Heart of a Reptile, A Diagram of the A diagram of the heart of a reptile. Labels: 1, Pericardium. 2, Single ventricle. 3, Left auricle. 4, Right auricle. The arrows show the direction of the blood flow.... |
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Hylonomus, Dorsal Vertebra Hylonomus was an early reptile. It lived 315 Ma (million years ago) during the Carboniferous period. Pictured here is the dorsal vertebra... |
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Iguanodon An extinct fossil colossal lizard found in the Wealden strata; so called from the resemblance of its teeth to those of the iguana.... |
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Jaw, Iguana The bottom jaw of an iguana. ... |
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Muscular Fiber Cells of a Snake From preparation of the nerve termination in the muscular fibers of a snake. A, End plate seen only broad surfaced. b, End plate seen as narrow surface.... |
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Pterodactyl A remarkable genus of fossil lizards, peculiar to the Mesozoic strata. Its anomalous structure was long a puzzle to comparative anatomists.... |
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