The University Maine Studies: The Habits, Anatomy, and Embryology of the Giant Scallop, (Pecten Tenuicostatus, Mighels) (Classic Reprint) - Softcover
Excerpt from The University Maine Studies: The Habits, Anatomy, and Embryology of the Giant Scallop, (Pecten Tenuicostatus, Mighels)
Most of the material upon which these observations were made was secured near Bass Harbor, Mount Desert Island, Maine, during the summer of 1901. Scallops in that region are fairly abundant but are now for the most part confined to water 40 fathoms or more in depth and are accordingly only to be obtained by dredging.
The scallop industry of Maine has undergone some changes since the appearance of Smith's (28) paper in 1889, but on the whole the changes are not very important. Some of the beds have run out so they are not profitable to work, and others have been discovered. Most of the good beds are now in water of from 40 to 60 fathoms and the scallops are somewhat smaller than in former years but the methods of catching them do not seem to have changed much.
The majority of lamellibranchs are adapted for burrowing more or less in mud or sand, are elongated, a shape that makes burrowing easy, and are provided with two adductor muscles for closing the shell, a desirable number for a shell and body of this shape. Such animals usually move very slowly, by thrusting the foot out into the mud, swelling its end to form an anchor, and then drawing the shell with the inclosed body to the position of the anchored foot. The shell may, or may not be capable of closing tightly, this being dependent in part upon how deep the animal burrows, and accordingly how well it is protected by the overlying mud, and in part by other conditions. Such forms, when disturbed, usually close the shell rather slowly and keep it closed until probable danger is past.
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This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Most of the material upon which these observations were made was secured near Bass Harbor, Mount Desert Island, Maine, during the summer of 1901. Scallops in that region are fairly abundant but are now for the most part confined to water 40 fathoms or more in depth and are accordingly only to be obtained by dredging.
The scallop industry of Maine has undergone some changes since the appearance of Smith's (28) paper in 1889, but on the whole the changes are not very important. Some of the beds have run out so they are not profitable to work, and others have been discovered. Most of the good beds are now in water of from 40 to 60 fathoms and the scallops are somewhat smaller than in former years but the methods of catching them do not seem to have changed much.
The majority of lamellibranchs are adapted for burrowing more or less in mud or sand, are elongated, a shape that makes burrowing easy, and are provided with two adductor muscles for closing the shell, a desirable number for a shell and body of this shape. Such animals usually move very slowly, by thrusting the foot out into the mud, swelling its end to form an anchor, and then drawing the shell with the inclosed body to the position of the anchored foot. The shell may, or may not be capable of closing tightly, this being dependent in part upon how deep the animal burrows, and accordingly how well it is protected by the overlying mud, and in part by other conditions. Such forms, when disturbed, usually close the shell rather slowly and keep it closed until probable danger is past.
About the Publisher
Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com
This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
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- PublisherForgotten Books
- Publication date2018
- ISBN 10 1330522532
- ISBN 13 9781330522530
- BindingPaperback
- Number of pages170
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The University Maine Studies (Classic Reprint)
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ISBN 10: 1330522532
ISBN 13: 9781330522530
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Book Description Paperback. Condition: New. Print on Demand. Excerpt from The University Maine Studies. About the Publisher, Forgotten Books publishes hundreds of thousands of rare and classic books. This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works. This text has been digitally restored from a historical edition. Some errors may persist, however we consider it worth publishing due to the work's historical value. The digital edition of all books may be viewed on our website before purchase. print-on-demand item. Seller Inventory # 9781330522530_0
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