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scale, in zoology

(Encyclopedia)scale, in zoology, an outgrowth, either bony or horny, of the skin of an animal. The major component of the scales of fishes is bone, and they are formed directly in the skin membrane as the fish grow...

pike, in zoology

(Encyclopedia)pike, common name for the family Esocidae, freshwater game and food fishes of Europe, Asia, and North America. The pike, the muskellunge, and the pickerel form a small but well-known group of long, th...

amphibian, in zoology

(Encyclopedia)amphibian, in zoology, cold-blooded vertebrate animal of the class Amphibia. There are three living orders of amphibians: the frogs and toads (order Anura, or Salientia), the salamanders and newts (or...

bass, in zoology

(Encyclopedia)bass băs [key], common name applied to various fishes of Centrarchidae (black basses and sunfishes), Serranidae (sea basses and groupers), Moronidae (temperate basses), and other families. All basses...

ray, in zoology

(Encyclopedia)ray, extremely flat-bodied cartilaginous marine fish, related to the shark. The pectoral fins of most rays are developed into broad, flat, winglike appendages, attached all along the sides of the head...

Randall, John Ernest, Jr.

(Encyclopedia)Randall, John Ernest, Jr., 1924–2020, American ichthyologist, b. Los Angeles, Ph.D. Univ. of Hawaii, Manoa, 1955. A marine taxonomist, he named 30 new genera and hundreds of new species of fish. Par...

tang, in zoology

(Encyclopedia)tang, common name for certain members of the Acanthuridae, a family of mostly small, mainly reef-dwelling tropical fishes with compressed bodies and small mouths and teeth. Other members of the family...

Frisch, Karl von

(Encyclopedia)Frisch, Karl von frĭsh [key], 1887–1982, Austrian zoologist, b. Vienna, Austria. He studied zoology with Richard von Hertwig, whom he later succeeded as professor of zoology at Munich Univ. For his...

crow, in zoology

(Encyclopedia)crow, partially migratory black bird, genus Corvus, of the same family as the raven, the magpie, the jay, and the rook and the jackdaw of Europe. The American, or common, crow, C. brachyrhynchos, abou...

Lyman, Theodore

(Encyclopedia)Lyman, Theodore, 1833–97, American naturalist, b. Waltham, Mass., grad. Harvard, 1855, and Lawrence Scientific School, Harvard, 1858. He was in the Union army as an aide (1863–65) on the staff of ...