Download Free Identification Of Marine And Freshwater Molluscs Shells Book in PDF and EPUB Free Download. You can read online Identification Of Marine And Freshwater Molluscs Shells and write the review.

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.
This eBook is best viewed on a color device. Scoop up plentiful Cockles on Eastern beaches. Spy a fabulous Emperor Helmet in Southern Florida. Find a Red Chiton on the Pacific shore. The coasts of North America yield a wondrous variety of shells, from the majestic Conch to tiny Bittium. This beautifully illustrated guide, Seashells of North America by R. Tucker Abbott, helps both the novice and experienced shell hunter distinguish between similar varieties and find the glorious specimens that become a collection's prize. -Native varieties and important introduced species -Expert tips on cleaning and preservation -Common and scientific names -Convenient measuring rules...and more!!
This book offers a unique introduction to the study of shells and molluscs for all those who take pleasure in shells, the treasure of the sea. However, unlike other shell albums, compendiums or guides, the central focus of this book is on shells and not molluscs. Therefore, in addition to the classification and identification of shells, the book also addresses aspects including the shell art and shell craft of Goa, the importance of shells, and literary works related to shells and their writers. The book also describes various shell habitats of Goa. The primary objective of this book is to introduce readers to the concept of shell heritage and to spark curiosity and scientific interest, not just among conchologists but also local and visiting beachgoers. Accordingly, it primarily uses straightforward, non-technical language. The book will also appeal to those readers without any previous knowledge of the subject, helping them to understand and appreciate the shells that they collect from the seashores of Goa.
A manual of the shell-bearing animals of sea and land which can be used for studying families of mollusks with scientific accuracy.
Mollusks have been important to humans since our earliest days. Initially, when humans were primarily interested in what they could eat or use, mollusks were important as food, ornaments, and materials for tools. Over the centuries, as human knowledge branched out and individuals started to study the world around them, mollusks were important subjects for learning how things worked. In this volume, the editors and contributors have brought together a broad range of topics within the field of malacology. It is our expectation that these topics will be of interest and use to amateur and professional malacologists.
Publisher Description