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Amphibian Anatomy |
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Archegosaurus Head Archegosaurus is a genus of amphibian which lived during the Asselian to Wuchiapingian ages of the Permian, around 299-253 million years ago.... |
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Archegosaurus, Dorsal Vertebrae Archegosaurus is a genus of amphibian which lived during the Asselian to Wuchiapingian ages of the Permian, around 299-253 million years ago. Pictured here is the dorsal vertebrae.... |
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Branchiosaurus, Dorsal Vertebra Branchiosaurus (Greek for "gill lizard") is a genus of small, lightly-built early prehistoric amphibians. Pictured here is the dorsal vertebra.... |
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Capillaries in Frog's Foot Capillaries (C) in the web of the frog's foot connecting a small artery (A) with a small vein (V).... |
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Capillaries of a Tadpole, Development of Development of capillaries in the regenerating tail of a tadpole. a b c d, sprouts and cords of protoplasm.... |
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Capillaries of a Tadpole, Development of Development of capillaries in the regenerating tail of a tadpole. a b c d, sprouts and cords of protoplasm. The sprouts and cords of protoplasm have become channeled out into capillaries. ... |
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Capillary Blood Vessels of Larval Frog Capillary blood vessel of the tail of a young larval frog. a, capillaries permeable to blood; b, fat granules attached to the walls of the vessels, and concealing the nuclei; c, hollow prolongation of... |
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Circulation of a Frog A diagram of the circulation of a frog. Labels: 1, The pericardium. 2, The single ventricle. 3, The right auricle. 4, The left auricle. The arrows indicate the direction of the blood.... |
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Cornea Showing Branched Corpuscles, Magnified Frog Horizontal preparation of cornea of frog; showing the network of branched cornea-corpuscles. The ground substance was completely colorless. ... |
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Development of young warty-newts Development of young warty-newts. ... |
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Dissected Frog "Frog with the left side cut away and some of the organs pulled downward. a, aorta leading from the ventricle; b, bladder; c, spinal cord surrounded by the vertebral column of bone; d, small intestin... |
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Eggs, Frog A cluster of frog eggs... |
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Eggs, Toad A line of toad eggs... |
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Embryo "Figure 1 represents the embryo as it appears several days after the egg is deposited." — Goodrich. 1859... |
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Embryo, form of the "Figure 2 gives an outline of its form; the arrows at the side of the head show the currents of water which are seen to flow to the branchiae by the breathing of the young animal." — Goodrich. 1... |
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Fire salamander, skull of Skull of salamandra maculosa, the fire salamander.... |
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Fossil This illustration shows the ancient fossile of an amphibian. Fossils are the mineralized or otherwise preserved remains or traces of animals, plants, and other organisms.... |
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Frog A side view of a frog's internal structure.... |
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Frog A ventral view of a frog's internal structure.... |
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Frog A ventral view of a frog's internal nervous system.... |
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Frog The heart and lungs of a frog. 1: Heart. 2: Arch of the aorta. 3: Pulmonary artery. 4: Pulmonary veins. 5: Aorta. 6: Vena cava.... |
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Frog Chondrocranium "Chondrocranium of Frog (Rana esculenta). y, girdle-bone or os en ceinture; EO, exoccipital; PrO, proötic; QJ, quadratojugal." -Whitney, 1911... |
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Frog Egg "The Tadpole is the larva of the anurous amphibia, sometimes so far extended as to include larvaæ of the urodela, which undergo a much less complete metamorphosis. At first the young have no res... |
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Frog Eggs "The Tadpole is the larva of the anurous amphibia, sometimes so far extended as to include larvaæ of the urodela, which undergo a much less complete metamorphosis. At first the young have no res... |
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Frog Embryo "Longitudinal vertical section of frog embryo, shortly before closure of blastopore. FB., fore-brain; EC., ectoderm; N., notochord; SC., canal of spinal cord; NE., nerenteric canal; B., blastopore; M.... |
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