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Amphibia :: Amphibia (pl. ) of Amphibiu.

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..

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

Precoracoid :: Precoracoid (n.) The anterior part of the coracoid (often closely united with the clavicle) in the shoulder girdle of many reptiles and amphibians.

Urodela :: Urodela (n. pl.) An order of amphibians having the tail well developed and often long. It comprises the salamanders, tritons, and allied animals..

Pylangium :: Pylangium (n.) The first and undivided part of the aortic trunk in the amphibian heart.

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

Roe :: Roe (n.) The ova or spawn of fishes and amphibians, especially when still inclosed in the ovarian membranes. Sometimes applied, loosely, to the sperm and the testes of the male..

Amphibiology :: Amphibiology (n.) A treatise on amphibious animals; the department of natural history which treats of the Amphibia.

Synantherous :: Synangium (n.) The divided part beyond the pylangium in the aortic trunk of the amphibian heart.

Labyrinthodon :: Labyrinthodon (n.) A genus of very large fossil amphibians, of the Triassic period, having bony plates on the under side of the body. It is the type of the order Labyrinthodonta. Called also Mastodonsaurus..

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

Proteidea :: Proteidea (n. pl.) An order of aquatic amphibians having prominent external gills and four legs. It includes Proteus and Menobranchus (Necturus). Called also Proteoidea, and Proteida..

Urostyle :: Urostyle (n.) A styliform process forming the posterior extremity of the vertebral column in some fishes and amphibians.

Septomaxillary :: Septomaxillary (n.) A small bone between the nasal septum and the maxilla in many reptiles and amphibians.

Amphibian :: Amphibian (a.) Of or pertaining to the Amphibia; as, amphibian reptiles..

Ganocephala :: Ganocephala (n. pl.) A group of fossil amphibians allied to the labyrinthodonts, having the head defended by bony, sculptured plates, as in some ganoid fishes..

Vertebrata :: Vertebrata (n. pl.) One of the grand divisions of the animal kingdom, comprising all animals that have a backbone composed of bony or cartilaginous vertebrae, together with Amphioxus in which the backbone is represented by a simple undivided notochord. The Vertebrata always have a dorsal, or neural, cavity above the notochord or backbone, and a ventral, or visceral, cavity below it. The subdivisions or classes of Vertebrata are Mammalia, Aves, Reptilia, Amphibia, Pisces, Marsipobranchia, and Lep

Ichthyoidal :: Ichthyoidal (a.) Somewhat like a fish; having some of the characteristics of fishes; -- said of some amphibians.

Trachystomata :: Trachystomata (n. pl.) An order of tailed aquatic amphibians, including Siren and Pseudobranchus. They have anterior legs only, are eel-like in form, and have no teeth except a small patch on the palate. The external gills are persistent through life..

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