gill arch skeleton

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• Skeleton — The skeleton is composed of bones and is the framework of the body. * * * 1. The bony framework of the body in vertebrates (endoskeleton) or the hard outer envelope of insects (exoskeleton or dermoskeleton). 2. All the dry parts remaining after… …   Medical dictionary

• skeleton — skeletonless, adj. skeletonlike, adj. /skel i tn/, n. 1. Anat., Zool. the bones of a human or an animal considered as a whole, together forming the framework of the body. 2. any of various structures forming a rigid framework in an invertebrate.… …   Universalium

• fish — fishless, adj. /fish/, n., pl. (esp. collectively) fish, (esp. referring to two or more kinds or species) fishes, v. n. 1. any of various cold blooded, aquatic vertebrates, having gills, commonly fins, and typically an elongated body covered with …   Universalium

• Fish — /fish/, n. Hamilton, 1808 93, U.S. statesman: secretary of state 1869 77. * * * I Any of more than 24,000 species of cold blooded vertebrates found worldwide in fresh and salt water. Living species range from the primitive lampreys and hagfishes… …   Universalium

• muscle — muscleless, adj. muscly, adj. /mus euhl/, n., v., muscled, muscling, adj. n. 1. a tissue composed of cells or fibers, the contraction of which produces movement in the body. 2. an organ, composed of muscle tissue, that contracts to produce a… …   Universalium

• perciform — ▪ fish order Introduction       any member of the order Perciformes, a group of bony fishes with more than 6,000 species placed in about 150 families. The order is the largest group of fishes in the world today. Perciform fishes occur in… …   Universalium

• Acanthodii — Taxobox name = Acanthodii fossil range = Early Silurian to Permian image width = 250px image caption = Acanthodes bronni regnum = Animalia phylum = Chordata subphylum = Vertebrata infraphylum = Gnathostomata classis = Acanthodii subdivision ranks …   Wikipedia

• Hyoid bone — Bone: Hyoid bone Hyoid bone. Anterior surface. Enlarged …   Wikipedia

• Lungfish — For the band, see Lungfish (band). Lungfishes Temporal range: Early Devonian–Recent …   Wikipedia

• Hallux — Dedos gordos en la escultura …   Wikipedia Español

• bird — birdless, adj. /berrd/, n. 1. any warm blooded vertebrate of the class Aves, having a body covered with feathers, forelimbs modified into wings, scaly legs, a beak, and no teeth, and bearing young in a hard shelled egg. 2. a fowl or game bird. 3 …   Universalium