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Articulary :: Articulary (n.) A bone in the base of the lower jaw of many birds, reptiles, amphibians, and fishes..

Discodactylia :: Discodactylia (n. pl.) A division of amphibians having suctorial disks on the toes, as the tree frogs..

Amphibia :: Amphibia (n. pl.) One of the classes of vertebrates.

Labyrinthodonta :: Labyrinthodonta (n. pl.) An extinct order of Amphibia, including the typical genus Labyrinthodon, and many other allied forms, from the Carboniferous, Permian, and Triassic formations. By recent writers they are divided into two or more orders. See Stegocephala..

Amphibia :: Amphibia (pl. ) of Amphibiu.

Perennibranchiate :: Perennibranchiate (a.) Having branchae, or gills, through life; -- said especially of certain Amphibia, like the menobranchus. Opposed to caducibranchiate..

Cryptobranchiata :: Cryptobranchiata (n. pl.) A division of the Amphibia; the Derotremata.

Lagena :: Lagena (n.) The terminal part of the cochlea in birds and most reptiles; an appendage of the sacculus, corresponding to the cochlea, in fishes and amphibians..

Reptile :: Reptile (n.) One of the Reptilia, or one of the Amphibia..

Pharynx :: Pharynx (n.) The part of the alimentary canal between the cavity of the mouth and the esophagus. It has one or two external openings through the nose in the higher vertebrates, and lateral branchial openings in fishes and some amphibias..

Dipnoi :: Dipnoi (n. pl.) A group of ganoid fishes, including the living genera Ceratodus and Lepidosiren, which present the closest approximation to the Amphibia. The air bladder acts as a lung, and the nostrils open inside the mouth. See Ceratodus, and Illustration in Appendix..

Axolotl :: Axolotl (n.) An amphibian of the salamander tribe found in the elevated lakes of Mexico; the siredon.

Siren :: Siren (n.) Any long, slender amphibian of the genus Siren or family Sirenidae, destitute of hind legs and pelvis, and having permanent external gills as well as lungs. They inhabit the swamps, lagoons, and ditches of the Southern United States. The more common species (Siren lacertina) is dull lead-gray in color, and becames two feet long..

Autostylic :: Autostylic (a.) Having the mandibular arch articulated directly to the cranium, as in the skulls of the Amphibia..

Web :: Web (n.) The membrane which unites the fingers or toes, either at their bases, as in man, or for a greater part of their length, as in many water birds and amphibians..

Ichthyopsida :: Ichthyopsida (n. pl.) A grand division of the Vertebrata, including the Amphibia and Fishes..

Cloaca :: Cloaca (n.) The common chamber into which the intestinal, urinary, and generative canals discharge in birds, reptiles, amphibians, and many fishes..

Coracoid :: Coracoid (a.) Pertaining to a bone of the shoulder girdle in most birds, reptiles, and amphibians, which is reduced to a process of the scapula in most mammals..

Gymnophiona :: Gymnophiona (n. pl.) An order of Amphibia, having a long, annulated, snakelike body. See Ophiomorpha..

Anura :: Anura (n. pl.) One of the orders of amphibians characterized by the absence of a tail, as the frogs and toads..

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