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 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 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:
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 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:
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 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 The Mollusks of the Arid Southwest written by Joseph Charles Bequaert and published by . This book was released on 1973 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Freshwater Sphaeriacean Clams Mollusca Pelecypoda of North America written by John Bayard Burch and published by . This book was released on 1975 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Land Snails of New Mexico written by Artie L. Metcalf and published by New Mexico Museum of Natural History and Science. This book was released on 1997 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Mollusca of Colorado written by University of Colorado and published by . This book was released on 1907 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Synopsis of the Classification of the Fresh water Mollusca of North America North of Mexico and a Catalogue of the More Recently Described Species with Notes written by Bryant Walker and published by . This book was released on 1918 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book New Names Introduced by H A Pilsbry in the Mollusca and Crustacea written by William Clench and published by Academy of Natural Sciences. This book was released on 2007-12 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covers all of the new names created by Pilsbry & his co-authors for both Recent & Fossil forms in the Mollusca & Crustacea. These names range in taxa from those above the family level to subspecies, varieties & forms. This work had its inception when the authors found it necessary to ¿card out¿ the new names which Pilsbry had instituted so that these names might be used in their own current problems of research in the field of malacology. As time went on, this catalogue increased in size & became a source of information to the staff. Its publication has make available a large file of data not easily located elsewhere. He introduced 5,680 names over a period of 75 years; he introduced more names than any other student in the field of malacology.
Download or read book The Lymn id of North and Middle America written by Frank Collins Baker and published by . This book was released on 1911 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book West Coast Shells written by Josiah Keep and published by . This book was released on 1887 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt:
