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  2. African clawed frog - Wikipedia

    en.wikipedia.org/wiki/African_clawed_frog

    Dwarf frogs have four webbed feet. African clawed frogs have webbed hind feet while their front feet have autonomous digits. African dwarf frogs have eyes positioned on the side of their head, while African clawed frogs have eyes on the top of their heads. African clawed frogs have curved, flat snouts. The snout of an African dwarf frog is pointed.

  3. Xenopus - Wikipedia

    en.wikipedia.org/wiki/Xenopus

    The frogs are all excellent swimmers and have powerful, fully webbed toes, though the fingers lack webbing. Three of the toes on each foot have conspicuous black claws. The frog's eyes are on top of the head, looking upwards. The pupils are circular.

  4. Salamander - Wikipedia

    en.wikipedia.org/wiki/Salamander

    The feet are broad with short digits, usually four on the front feet and five on the rear. Salamanders do not have claws, and the shape of the foot varies according to the animal's habitat. Climbing species have elongated, square-tipped toes, while rock-dwellers have larger feet with short, blunt toes.

  5. Amphibian - Wikipedia

    en.wikipedia.org/wiki/Amphibian

    Amphibians have soft bodies with thin skins, and lack claws, defensive armour, or spines. Nevertheless, they have evolved various defence mechanisms to keep themselves alive. The first line of defence in salamanders and frogs is the mucous secretion that they produce.

  6. Common mudpuppy - Wikipedia

    en.wikipedia.org/wiki/Common_Mudpuppy

    The mudpuppy jaw is considered metaautostyly, like most amphibians, meaning the jaw is more stable and that the salamander has a dentary. [15] This affects their diet by limiting the flexibility of the jaw to take in larger prey. The mudpuppy has few predators which may include fish, crayfish, turtles, and water snakes. Fishermen also ...

  7. Common snapping turtle - Wikipedia

    en.wikipedia.org/wiki/Common_snapping_turtle

    The Audubon Society Field Guide to North American Reptiles and Amphibians. New York: Alfred A. Knopf. 743 pp. ISBN 0-394-50824-6. (Chelydra serpentina, pp. 435–436 + Plates 322–324). Conant R (1975). A Field Guide to Reptiles and Amphibians of Eastern and Central North America, Second Edition. Boston: Houghton Mifflin Company. xviii + 429 ...

  8. Caecilian - Wikipedia

    en.wikipedia.org/wiki/Caecilian

    [17] [18] Unlike other modern amphibians (frogs and salamanders) the skull is compact and solid, with few large openings between plate-like cranial bones. The snout is pointed and bullet-shaped, used to force their way through soil or mud. In most species the mouth is recessed under the head, so that the snout overhangs the mouth. [10]

  9. Temnospondyli - Wikipedia

    en.wikipedia.org/wiki/Temnospondyli

    Temnospondyli (from Greek τέμνειν, temnein 'to cut' and σπόνδυλος, spondylos 'vertebra') or temnospondyls is a diverse ancient order of small to giant tetrapods—often considered primitive amphibians—that flourished worldwide during the Carboniferous, Permian and Triassic periods, with fossils being found on every continent.