Download or read book Mollusca of the Southwestern States Vol 1 written by Henry A. Pilsbry and published by Forgotten Books. This book was released on 2016-12-23 with total page 678 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Mollusca of the Southwestern States, Vol. 1: Urocoptidae; Helicidae of Arizona and New Mexico It is unfortunate that no good t0pographic survey of southern Ari zona has been published. It is extremely difficult at present to deter mine some localities given by previous naturalists, or to clearly indi cate the positions of those explored by Mr. Ferriss. The accompanying sketch of the canyons explored in the Huachucas makes no pretensions to cartographic accuracy beyond showing the relative positions of the localities mentioned in the text. From Fort Huachuca to Ramsey Canyon is 10 miles; to Carr Canyon 14, and to Miller Canyon 20 miles. Manilla mine is 6 miles from Fort Huachuca. The range is about 30 miles long and 6 wide. 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."
Download or read book Mollusca of the Southwestern States I X written by Henry Augustus Pilsbry and published by Rarebooksclub.com. This book was released on 2013-09 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1905 edition. Excerpt: ...has about 38.1.38 teeth. The ectocones are developed on central and lateral teeth. From the twentyfourth or twenty-fifth teeth outward from the middle the inner cusp is bifid. The ectocones are unsplit. A central and two lateral teeth are shown. This snail, so far as the shell is concerned, would be referred without hesitation to A. chiricahuana; the differences being less than the ordinary range of individual variation in Ashmunella or Polygyra; but the genitalia are so utterly unlike in the two forms that it is obvious that they are not even nearly related. From the granulation and the weak traces of teeth it seems that A. metamorphosa is probably a toothless derivative of the A. levettei stock; I regret that I have no alcoholic specimens of A. levettei or A. l. heterodonta for comparison. A. esuritor differs from metamorphosa by its angular or distinctly subangular periphery, rougher surface when perfectly fresh, and perhaps somewhat wider umbilicus; but it must be admitted that the two forms are so similar that their distinction may be diflicult without an examination of the soft parts. The genitalia, however, are so very different that the two species cannot even be closely related. They must be independent derivatives from toothed ancestral forms. I dissected two of the three specimens received. They could be extracted only by breaking into the shell. Having been preserved in alcohol without drowning the specimens were much more contracted than the A. chiricahuana and A. esuretor I examined. A somewhat extensive experience with snails in all conditions of preservation has shown that beyond a moderate diminution of the absolute size, the characters of the genitalia are not altered by preservation of the animal in strong alcohol....
Download or read book Mollusca of the Southwestern States I XI written by Henry Augustus Pilsbry and published by . This book was released on 1905 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mollusca of the Southwestern States Vol 1 written by Henry A. Pilsbry and published by Forgotten Books. This book was released on 2018-02-10 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Mollusca of the Southwestern States, Vol. 1: Urocoptidae; Helicidae of Arizona and New Mexico In these papers the mollusks collected by Mr. James H. Ferriss and the writer in the expedition made in 1903 and by Mr. Ferriss in two visits to Arizona in 1902 and 1904 will be discussed. The present contri bution deals chiefly with Mr. Ferriss' researches in Arizona, where an extraordinarily rich and varied snail fauna was found in the canyons of the Chiricahua and Huachuca Mountains. In the study of these mate rials I have worked over many specimens received from the late E. H. Ashmun, who first made known to us the richness of the Arizona snail fauna, and from Prof. T. D. A. Cockerell, Whose unceasing labors on the fauna and flora of New Mexico are familiar to all naturalists. The treatment of the genus Ashmunella has been made practically mono graphic. It is unfortunate that no good t0pographic survey of southern Ari zona has been published. It is extremely difficult at present to deter mine some localities given by previous naturalists, or to clearly indi cate the positions of those explored by Mr. Ferriss. The accompanying sketch of the canyons explored in the Huachucas makes no pretensions to cartographic accuracy beyond showing the relative positions of the localities mentioned in the text. From Fort Huachuca to Ramsey Canyon is 10 miles; to Carr Canyon 14, and to Miller Canyon 20 miles. Manilla mine is 6 miles from Fort Huachuca. The range is about 30 miles long and 6 wide. 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.
Download or read book Mollusca of the Southwestern States written by Henry Augustus Pilsbry and published by . This book was released on 1905 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book MOLLUSCA OF THE SOUTHWESTERN S written by Henry Augustus B. 1862 Pilsbry and published by . This book was released on 2016-08-29 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mollusca of the Southwestern States XI written by Henry Augustus Pilsbry and published by . This book was released on 19?? with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mollusca of the Southwestern States written by Henry Augustus Pilsbry and published by . This book was released on 1905 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Download or read book West American Mollusca Volume 1 Issues 1 13 written by Charles Russell Orcutt and published by Palala Press. This book was released on 2016-04-27 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book Twenty fifth Anniversary Studies Volume 1 written by D. S. Davidson and published by University of Pennsylvania Press. This book was released on 2017-01-30 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a volume in the Penn Press Anniversary Collection. To mark its 125th anniversary in 2015, the University of Pennsylvania Press rereleased more than 1,100 titles from Penn Press's distinguished backlist from 1899-1999 that had fallen out of print. Spanning an entire century, the Anniversary Collection offers peer-reviewed scholarship in a wide range of subject areas.
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Download or read book Mollusca of Western Arkansas and Adjacent states with a Revision of Paravitrea written by Henry Augustus Pilsbry and published by . This book was released on 1903 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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