American Journal of Conchology PDF Download

Author: George Washington Tryon
Publisher:
ISBN:
Category : Mollusks
Languages : en
Pages : 958

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Author: Theodore Lyman
Publisher:
ISBN:
Category : Naturalists
Languages : en
Pages : 20

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Author: Robert Tucker Abbott
Publisher: Shell Cabinet
ISBN:
Category : Science
Languages : en
Pages : 512

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Author: Alfred Goldsborough Mayer
Publisher:
ISBN:
Category :
Languages : en
Pages : 52

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Author: John Moring
Publisher: Taylor Trade Publications
ISBN: 9781589791831
Category : Biography & Autobiography
Languages : en
Pages : 268

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This historical work chronicles the lives, adventures, and discoveries of America's great explorer/naturalists--Lewis & Clark, Martha Maxwell, John James Audubon, John Muir, William Gambel, Thomas Say, Robert Kennicott and John Townsend. Regardless of the formidable obstacles and travails, these naturalist-explorers provided an invaluable scientific foundation as to how the plants, animals, and environment of the American West coexist. From identifying new species to discovering prehistoric fossils, this book celebrates these intrepid trailblazers who boldly navigated and documented the untrammeled, awe-inspiring frontier west of the Mississippi.

Author:
Publisher:
ISBN:
Category : Animals
Languages : en
Pages : 316

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Vols. 1-7, and 16 include reports and proceedings of the Royal Zoological Society of New South Wales for 1913-1932/33, 1969/70.

Author: Carnegie Institution of Washington
Publisher:
ISBN:
Category :
Languages : en
Pages : 206

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Author: David M. Damkaer
Publisher: American Philosophical Society
ISBN: 9780871692405
Category : Science
Languages : en
Pages : 328

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Copepod crustaceans are the most numerous multicellular animals on earth. They occur in every free-living and parasitic aquatic niche. Copepods have been known since the time of Aristotle, yet there has never been a history of the study of copepods. This volume, the first in a planned three-volume series, reviews the discoveries of copepods to 1832, the year that the two distinct branches, the free-living copepods (long-known as insects) and the parasitic copepods (thought to be molluscs or worms) were finally acknowledged as members of the same Class Crustacea. The narrative includes the biographies of 90 early copepodologists and recounts their most important contributions to science. Portraits are included for two-thirds of the subjects, with considerable new material as well as information and illustrations from obscure sources. Milestones include the first description of copepods (ca. 350 B.C.), the first illustration (1554), the first free-living freshwater copepod (1688), the first explanation of a free-living copepod's metamorphosis (1756), the first permanently named copepod (1758), the first free-living marine copepod (1770), and the first description of a parasitic copepod's metamorphosis (1819). The work ends with a transition to the mid-19th century, previewing numerous personal connections that pointed toward copepodology's Golden Age in the 1890s, to be covered in Volume 2. A final volume will take the history of the study of copepods to ca. 1950.

Author: M.G. Harasewych
Publisher: University of Chicago Press
ISBN: 022617705X
Category : Science
Languages : en
Pages : 658

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Who among us hasn’t marveled at the diversity and beauty of shells? Or picked one up, held it to our ear, and then gazed in wonder at its shape and hue? Many a lifelong shell collector has cut teeth (and toes) on the beaches of the Jersey Shore, the Outer Banks, or the coasts of Sanibel Island. Some have even dived to the depths of the ocean. But most of us are not familiar with the biological origin of shells, their role in explaining evolutionary history, and the incredible variety of forms in which they come. Shells are the external skeletons of mollusks, an ancient and diverse phylum of invertebrates that are in the earliest fossil record of multicellular life over 500 million years ago. There are over 100,000 kinds of recorded mollusks, and some estimate that there are over amillion more that have yet to be discovered. Some breathe air, others live in fresh water, but most live in the ocean. They range in size from a grain of sand to a beach ball and in weight from a few grams to several hundred pounds. And in this lavishly illustrated volume, they finally get their full due. The Book of Shells offers a visually stunning and scientifically engaging guide to six hundred of the most intriguing mollusk shells, each chosen to convey the range of shapes and sizes that occur across a range of species. Each shell is reproduced here at its actual size, in full color, and is accompanied by an explanation of the shell’s range, distribution, abundance, habitat, and operculum—the piece that protects the mollusk when it’s in the shell. Brief scientific and historical accounts of each shell and related species include fun-filled facts and anecdotes that broaden its portrait. The Matchless Cone, for instance, or Conus cedonulli, was one of the rarest shells collected during the eighteenth century. So much so, in fact, that a specimen in 1796 was sold for more than six times as much as a painting by Vermeer at the same auction. But since the advent of scuba diving, this shell has become far more accessible to collectors—though not without certain risks. Some species of Conus produce venom that has caused more than thirty known human deaths. The Zebra Nerite, the Heart Cockle, the Indian Babylon, the Junonia, the Atlantic Thorny Oyster—shells from habitats spanning the poles and the tropics, from the highest mountains to the ocean’s deepest recesses, are all on display in this definitive work.

Author: International Bryozoology Association. Conference
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 400

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