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The American, or Clarke's, nutcracker (Picicorvus Columbianus) of Western North America.

he red-breasted nuthatch (S. Canadensis), the pygmy nuthatch (S. pygmæa), and others, are American.

A South American bird of the genus Nyctibius, allied to the goatsuckers.

An American feline carnivore (Felis pardalis). It ranges from the Southwestern United States to Patagonia. It is covered with blackish ocellated spots and blotches, which are variously arranged. The ground color varies from reddish gray to tawny yellow.

ng to the Octodontidæ, a family of rodents which includes the coypu, and many other South American species.

ituation, place, or position; as, on the one hand, on the other hand; the fleet is on the American coast.

A nocturnal South American monkey (Callithrix discolor), noted for its agility; -- called also ventriloquist monkey.

Any American marsupial of the genera Didelphys and Chironectes. The common species of the United States is Didelphys Virginiana.

A South American monkey of the genus Callithrix, esp. C. Moloch.

tors of shells on account of its rarity. -- Orange grass (Bot.), an inconspicuous annual American plant (Hypericum Sarothra), having minute, deep yellow flowers. -- Orange oil (Chem.), an oily, terpenelike substance obtained from orange rind, and distinct from neroli oil, which is obtained from the flowers. -- Orang…

An American ranunculaceous plant (Hidrastis Canadensis), having a yellow tuberous root; -- also called yellowroot, golden seal, etc.

ure in which fruit trees are reared in pots. -- Orchard oriole (Zool.), a bright-colored American oriole (Icterus spurius), which frequents orchards. It is smaller and darker thah the Baltimore oriole.

Any one of several South American wrens, noted for the sweetness of their song.

cteristic of the latest period of the Silurian age. Oriskany period, a subdivision of the American Paleozoic system intermediate or translational in character between the Silurian and Devonian ages. See Chart of Geology.

A genus of American Eocene mammals allied to the horse, but having four toes in front and three behind.

aking. [Eng.] -- Red osier. (a) A kind of willow with reddish twigs (Salix rubra). (b) An American shrub (Cornus stolonifera) which has slender red branches; -- also called osier cornel.

An American aromatic herb (Monarda didyma), with showy, bright red, labiate flowers.

n fish. Their fur is soft and valuable. The common otter of Europe is Lutra vulgaris; the American otter is L. Canadensis; other species inhabit South America and Asia.

Any South American monkey of the genus Brachyurus, especially B. ouakari.

the ring ousel. -- Water ousel (Zoöl.), the European dipper (Cinclus aquaticus), and the American dipper (C. Mexicanus).