DOCSLIB.ORG

Contents Gastrodonta Demissa

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Contents Gastrodonta Demissa REPORT Polygyra fraterna..........................................................22 OF THE Polygyra monodon .......................................................23 STATE BOARD OF GEOLOGICAL SURVEY Circinaria concava........................................................24 OF MICHIGAN Omphalina fuliginosa....................................................25 FOR THE YEAR 1905 Omphalina inornata......................................................25 Vitrina limpida...............................................................26 ALFRED C. LANE Vitrea cellaria................................................................27 STATE GEOLOGIST Vitrea hammonis ..........................................................27 BY AUTHORITY Vitrea wheatleyi............................................................28 Vitrea binneyana ..........................................................28 LANSING, MICHIGAN WYNKOOP HALLENBECK CRAWFORD CO., STATE PRINTERS Vitrea ferrea..................................................................28 1906 Vitrea indentata ............................................................29 AN ILLUSTRATED CATALOGUE OF THE Vitrea rhoadsi ...............................................................29 MOLLUSCA OF MICHIGAN Vitrea multidentata .......................................................29 BY Euconulus fulvus ..........................................................30 BRYANT WALKER Euconulus chersinus polygyratus. ...............................30 Zonitoides nitida. ..........................................................31 PART I. TERRESTRIAL PULMONATA Zonitoides arborea .......................................................31 (LAND SNAILS) Zonitoides limatula .......................................................32 Published by the State Board of Geological Survey, as a part Zonitoides minuscula. ..................................................32 of the Report for 1905, and as a contribution to the Biological Zonitoides exigua. ........................................................32 Survey of the State, authorized by Act 250, Session 1905 Zonitoides milium .........................................................33 Gastrodonta intertexta..................................................33 Contents Gastrodonta demissa ...................................................33 Gastrodonta ligera........................................................34 Letter of Transmittal ....................................................... 3 Agriolimax agrestis.......................................................35 Preface. ............................................................................ 4 Agriolimax campestris ..................................................35 Introduction. .................................................................... 4 Pyramidula alternata ....................................................36 I. Review of Michigan conchology. ............................... 4 Pyramidula solitaria......................................................36 II. Terrestrial molluscan fauna of Michigan................... 6 Pyramidula perspectiva................................................37 III. Hints on collecting mollusca. ................................... 8 Pyramidula cronkhitei anthonyi ....................................37 IV. Methods of killing and dissection. ......................... 12 Pyramidula asteriscus ..................................................38 V. Preparation of the jaw and radula. ......................... 13 Helicodiscus parallelus.................................................38 VI. Classification. ........................................................ 13 Punctum pygmæum .....................................................39 VII. Measurement and descriptive terms.................... 14 Sphyradium edentulum ................................................39 Philomycus carolinensis...............................................40 CATALOGUE.................................................................. 15 Pallifera dorsalis...........................................................40 Polygyra tridentata....................................................... 16 Pallifera hemphilli .........................................................41 Polygyra fraudulenta.................................................... 17 Succinea retusa. ..........................................................41 Polygyra inflecta .......................................................... 17 Succinea ovalis. ...........................................................43 Polygyra profunda ....................................................... 17 Succinea avara. ...........................................................43 Polygyra sayana .......................................................... 18 Strobilops labyrinthica ..................................................45 Polygyra albolabris ...................................................... 18 Strobilops virgo.............................................................45 Polygyra zaleta ............................................................ 19 Strobilopes affinis.........................................................46 Polygyra multilineata. .................................................. 19 Acanthinula harpa ........................................................46 Polygyra palliata .......................................................... 20 Pupoides marginatus ...................................................47 Polygyra elevata .......................................................... 20 Bifidaria armifera ..........................................................47 Polygyra pennsylvania................................................. 21 Bifidaria contracta ........................................................48 Polygyra thyroides ....................................................... 21 Bifidaria corticaria.........................................................48 Polygyra clausa ........................................................... 21 Bifidaria pentodon ........................................................49 Polygyra mitchelliana................................................... 22 Bifidaria tappaniana .....................................................49 Polygyra hirsuta........................................................... 22 Pupilla muscorum.........................................................50 Annual Report 1905 -- Mollusca of Michigan–Walker – Page 1 of 57 Vertigo milium.............................................................. 51 Figure 44. Vitrea binneyana. .................................................28 Figure 45. Jaw of Vitrea ferrea..............................................28 Vertigo ovata ............................................................... 51 Figure 46. Dentition of Vitrea ferrea. .....................................28 Vertigo morsei ............................................................. 51 Figure 47. Vitrea ferrea .........................................................29 Vertigo ventricosa ....................................................... 52 Figure 48. Vitrea indentata....................................................29 Vertigo gouldii.............................................................. 52 Figure 49. Vitrea rhoadsi.......................................................29 Figure 50. Vitrea multidentata.. .............................................29 Vertigo bollesiana ........................................................ 53 Figure 51. Jaw of Euconulus.................................................30 Vertigo tridentata ......................................................... 53 Figure 52. Dentition of Eunoculus. ........................................30 Cochlicopa lubrica ....................................................... 54 Figure 53. Eunoculus fulvus..................................................30 Figure 54. Eunoculus chersinus polygyratus.........................30 Vallonia pulchella......................................................... 54 Figure 55. Jaw of Zonitoides arborea....................................31 Vallonia excentrica ...................................................... 55 Figure 56. Dentition of Zonitoides arborea. ...........................31 Vallonia costata ........................................................... 55 Figure 57. Zonitoides nitida...................................................31 Figure 58. Zonitoides arborea. ..............................................31 Carychium exiguum..................................................... 56 Figure 59. Zonitoides limatula. ..............................................32 Carychium exile ........................................................... 56 Figure 60. Zonitoides miniscula.............................................32 Unauthenticated and doubtful species. ....................... 57 Figure 61. Zonitoides exigua.................................................32 Figure 62. Sculpture of Zonitoides exigua.............................32 Figure 63. Zonitoides milium .................................................33 Illustrations Figure 64. Animal of Gastrodonta ligera................................33 Figure 65. Tail of Gastrodonta suppressa. ............................33 Summary of census of Michigan Terrestrial Mollusca, showing Figure 66. Jaw of Gastrodonta ligera. ...................................33 number of species reported from each county. ................3 Figure 67. Dentition
Load more

Recommended publications
  • San Gabriel Chestnut ESA Petition
    BEFORE THE SECRETARY OF THE INTERIOR PETITION TO THE U.S. FISH AND WILDLIFE SERVICE TO PROTECT THE SAN GABRIEL CHESTNUT SNAIL UNDER THE ENDANGERED SPECIES ACT © James Bailey CENTER FOR BIOLOGICAL DIVERSITY Notice of Petition Ryan Zinke, Secretary U.S. Department of the Interior 1849 C Street NW Washington, D.C. 20240 [email protected] Greg Sheehan, Acting Director U.S. Fish and Wildlife Service 1849 C Street NW Washington, D.C. 20240 [email protected] Paul Souza, Director Region 8 U.S. Fish and Wildlife Service Pacific Southwest Region 2800 Cottage Way Sacramento, CA 95825 [email protected] Petitioner The Center for Biological Diversity is a national, nonprofit conservation organization with more than 1.3 million members and supporters dedicated to the protection of endangered species and wild places. http://www.biologicaldiversity.org Failure to grant the requested petition will adversely affect the aesthetic, recreational, commercial, research, and scientific interests of the petitioning organization’s members and the people of the United States. Morally, aesthetically, recreationally, and commercially, the public shows increasing concern for wild ecosystems and for biodiversity in general. 1 November 13, 2017 Dear Mr. Zinke: Pursuant to Section 4(b) of the Endangered Species Act (“ESA”), 16 U.S.C. §1533(b), Section 553(3) of the Administrative Procedures Act, 5 U.S.C. § 553(e), and 50 C.F.R. §424.14(a), the Center for Biological Diversity and Tierra Curry hereby formally petition the Secretary of the Interior, through the United States Fish and Wildlife Service (“FWS”, “the Service”) to list the San Gabriel chestnut snail (Glyptostoma gabrielense) as a threatened or endangered species under the Endangered Species Act and to designate critical habitat concurrently with listing.
    [Show full text]
  • Trunk Road Estate Biodiversity Action Plan
    Home Welsh Assembly Government Trunk Road Estate Biodiversity Action Plan 2004-2014 If you have any comments on this document, its contents, or its links to other sites, please send them by post to: Environmental Science Advisor, Transport Directorate, Welsh Assembly Government, Cathays Park, Cardiff CF10 3NQ or by email to [email protected] The same contact point can be used to report sightings of wildlife relating to the Trunk Road and Motorway network. Prepared by on behalf of the Welsh Assembly Government ISBN 0 7504 3243 8 JANUARY 2004 ©Crown copyright 2004 Home Contents Foreword by Minister for Economic Development and Transport 4 Executive Summary 5 How to use this document 8 Introduction 9 Background to biodiversity in the UK 10 Background to biodiversity in Wales 12 The Trunk Road Estate 13 Existing guidance and advice 16 TREBAP development 19 Delivery 23 Links to other organisations 26 The Plans 27 Glossary 129 Bibliography and useful references 134 Other references 138 Acknowledgements 139 3 Contents Foreword FOREWORD BY THE MINISTER FOR ECONOMIC DEVELOPMENT AND TRANSPORT The publication of this Action Plan is both a recognition of the way the Assembly Government has been taking forward biodiversity and an opportunity for the Transport Directorate to continue to contribute to the wealth of biodiversity that occurs in Wales. Getting the right balance between the needs of our society for road-based transport, and the effects of the Assembly’s road network on our wildlife is a complex and often controversial issue. The Plan itself is designed to both challenge and inspire those who work with the Directorate on the National Assembly’s road network – and, as importantly, to challenge those of us who use the network to think more about the wildlife there.
    [Show full text]
  • Locomotion and Other Behavior of the Dipper
    Vol. 61 LOCOMOTION AND OTHER BEHAVIOR OF THE DIPPER By WILLL4M’ R. GOODGE As a part of a study of adaptations for aquatic life in the North American Dipper (C&cZ~ me&unus) , an effort was made to learn more about the locomotor behavior of this speciesin order to form a basis for interpretation of structural modifications. In this paper the locomotion of the dipper, with particular regard to underwater progres- sion, is described and analyzed by the use of information obtained through field study and by observation and motion picture photography of captive birds in the laboratory. Although a thorough field study of nesting behavior was not a part of this work, some data of this nature obtained during the study of locomotor behavior will be included. The latter material, although fragmentary, supplements previously published informa- tion. Until the work of Hann (1950) there had been no intensive study of the nesting habits of this species in spite of the fact that its unusual mode of life for a passerine bird makes it an especially interesting species. MATERIALS AND METHODS Dippers were observed in the field at many localities in the state of Washington, but the majority of the observations were made on a pair of birds nesting along the upper Raging River in the western foothills of the Cascade Mountains near North Bend, Washington, at an elevation of about 1000 feet. Other nesting dippers were observed along Icicle River near Leavenworth on the east slope of the Cascades at an elevation of about 2500 feet. Most of the field work was done in 1954 and 1955.
    [Show full text]
  • Factors Affecting the Structure and Distribution of Terrestrial Pulmonata
    Proceedings of the Iowa Academy of Science Volume 73 Annual Issue Article 60 1966 Factors Affecting the Structure and Distribution of Terrestrial Pulmonata Charles G. Atkins Let us know how access to this document benefits ouy Copyright ©1966 Iowa Academy of Science, Inc. Follow this and additional works at: https://scholarworks.uni.edu/pias Recommended Citation Atkins, Charles G. (1966) "Factors Affecting the Structure and Distribution of Terrestrial Pulmonata," Proceedings of the Iowa Academy of Science, 73(1), 408-416. Available at: https://scholarworks.uni.edu/pias/vol73/iss1/60 This Research is brought to you for free and open access by the Iowa Academy of Science at UNI ScholarWorks. It has been accepted for inclusion in Proceedings of the Iowa Academy of Science by an authorized editor of UNI ScholarWorks. For more information, please contact [email protected]. Atkins: Factors Affecting the Structure and Distribution of Terrestrial P Factors Affecting the Structure and Distribution of Terrestrial Pulmonata CHARLES G. ATKINS Abstracts Soil CaCO. levels were determined for six ecosystems in Washtenaw and Wayne Counties, Michigan and in Linn County, Iowa; and correlation between these results and the shell thickness of certain terrestrial snails was made. Species used were Anguispira alternata ( Say), Triodopsis multilineata (Say), and T. albolabris (Say). Two ecosystems had high caco. levels ( 120-144 ppm), three had intermedi­ ate levels ( 93-99ppm) and one had a low level ( 40 ppm). 'Width/thickness ratios of live and cast shells showed that those in high calcium ecosystems had thicker shells than those in low calcium ecosystems, though there were large de­ viations in the thickness values.
    [Show full text]
  • A New Approach to an Old Conundrumdna Barcoding Sheds
    Molecular Ecology Resources (2010) doi: 10.1111/j.1755-0998.2010.02937.x DNA BARCODING A new approach to an old conundrum—DNA barcoding sheds new light on phenotypic plasticity and morphological stasis in microsnails (Gastropoda, Pulmonata, Carychiidae) ALEXANDER M. WEIGAND,* ADRIENNE JOCHUM,* MARKUS PFENNINGER,† DIRK STEINKE‡ and ANNETTE KLUSSMANN-KOLB*,† *Institute for Ecology, Evolution and Diversity, Siesmayerstrasse 70, Goethe-University, 60323 Frankfurt am Main, Germany, †Research Centre Biodiversity and Climate, Siesmayerstrasse 70, 60323 Frankfurt am Main, Germany, ‡Biodiversity Institute of Ontario, University of Guelph, 50 Stone Road West, Guelph, ON N1G 2V7, Canada Abstract The identification of microsnail taxa based on morphological characters is often a time-consuming and inconclusive process. Aspects such as morphological stasis and phenotypic plasticity further complicate their taxonomic designation. In this study, we demonstrate that the application of DNA barcoding can alleviate these problems within the Carychiidae (Gastro- poda, Pulmonata). These microsnails are a taxon of the pulmonate lineage and most likely migrated onto land indepen- dently of the Stylommatophora clade. Their taxonomical classification is currently based on conchological and anatomical characters only. Despite much confusion about historic species assignments, the Carychiidae can be unambiguously subdi- vided into two taxa: (i) Zospeum species, which are restricted to karst caves, and (ii) Carychium species, which occur in a broad range of environmental conditions. The implementation of discrete molecular data (COI marker) enabled us to cor- rectly designate 90% of the carychiid microsnails. The remaining cases were probably cryptic Zospeum and Carychium taxa and incipient species, which require further investigation into their species status. Because conventional reliance upon mostly continuous (i.e.
    [Show full text]
  • 86 Animal Miraculum Discovery of Living Anguispira Alternata (Say
    Discovery of Living Anguispira alternata (Say, 1816) (Discidae: Gastropoda) in Louisiana, USA Russell L. Minton*, Erin L. Basiger, and Casey B. Nolan Department of Biology, University of Louisiana at Monroe, 700 University Avenue, Monroe, LA 71209-0520, USA (Accepted January 29, 2010) Of the 13 recognized species of Anguispira in the US, 2 are listed as occurring in Louisiana (NatureServe 2009). (A) Anguispira alternata (Say, 1819) is a pulmonate land snail found throughout the eastern US, including states bordering the Mississippi River to the west (Hubricht 1985). The other species, A. strongylodes (Pfeiffer, 1854), is found across the southern US, with a range that narrowly overlaps A. alternata at its northern boundary. The shell of A. strongylodes differs from that of A. alternata by lacking streaks along the base and the umbilicus and by having smaller spots along the shell periphery (Pilsbry 1948). Hubricht (1985) listed only fossil A. alternata as occurring in Louisiana and Mississippi, while NatureServe (2009) lists it as extirpated in both states. Pilsbry viewed strongylodes as a weakly differentiated subspecies of A. alternata endemic to east-central Texas, although Hubricht (1960) later elevated strongylodes to species status and established its currently recognized range (Hubricht 1985). During a recent survey of Black Bayou Lake National Wildlife Refuge (32.6°N, 92.04°W) in Monroe, LA, we collected (B) a number of living and dead specimens that matched the original description and other published images of A. alternata and not A. strongylodes. These specimens possessed the color patterns described by Pilsbry (1948), most notably prominent spots on the periphery and streaks on the underside that separate A.
    [Show full text]
  • Revision of the Systematic Position of Lindbergia Garganoensis
    Revision of the systematic position of Lindbergia garganoensis Gittenberger & Eikenboom, 2006, with reassignment to Vitrea Fitzinger, 1833 (Gastropoda, Eupulmonata, Pristilomatidae) Gianbattista Nardi Via Boschette 8A, 25064 Gussago (Brescia), Italy; [email protected] [corresponding author] Antonio Braccia Via Ischia 19, 25100 Brescia, Italy; [email protected] Simone Cianfanelli Museum System of University of Florence, Zoological Section “La Specola”, Via Romana 17, 50125 Firenze, Italy; [email protected] & Marco Bodon c/o Museum System of University of Florence, Zoological Section “La Specola”, Via Romana 17, 50125 Firenze, Italy; [email protected] Nardi, G., Braccia, A., Cianfanelli, S. & Bo- INTRODUCTION don, M., 2019. Revision of the systematic position of Lindbergia garganoensis Gittenberger & Eiken- Lindbergia garganoensis Gittenberger & Eikenboom, 2006 boom, 2006, with reassignment to Vitrea Fitzinger, is the first species of the genus, Lindbergia Riedel, 1959 to 1833 (Gastropoda, Eupulmonata, Pristilomatidae). be discovered in Italy. The genus Lindbergia encompasses – Basteria 83 (1-3): 19-28. Leiden. Published 6 April 2019 about ten different species, endemic to the Greek mainland, Crete, the Cycladic islands, Dodecanese islands, northern Aegean islands, and southern Turkey (Riedel, 1992, 1995, 2000; Welter-Schultes, 2012; Bank & Neubert, 2017). Due to Lindbergia garganoensis Gittenberger & Eikenboom, 2006, lack of anatomical data, some of these species remain ge- a taxon with mainly a south-Balkan distribution, is the only nerically questionable. Up to now, L. garganoensis was only Italian species assigned to the genus Lindbergia Riedel, 1959. known by the presence of very fine spiral striae on the tel- The assignment to this genus, as documented by the pecu- eoconch and by the general shape of its shell.
    [Show full text]
  • Euconulus Alderi Gray a Land Snail
    Euconulus alderi, Page 1 Euconulus alderi Gray A land snail State Distribution Photo by Matthew Barthel and Jeffery C. Nekola Best Survey Period Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Status: State listed as Special Concern are smaller, have a more shiny luster, and a darker shell color. Also, the microscopic spiral lines on the base of Global and state ranks: G3Q/S2 the shell are stronger than the radial striations. This is reversed in E. fulvus (Nekola 1998). For more Family: Helicarionidae information on identifying land snails, see Burch and Jung (1988) pages 155-158 or Burch and Pearce (1990) Synonyms: none pages 211-218. Total range: The global range of Euconulus alderi Best survey time: Surveys for E. alderi are best includes Ireland, Sweden, the United Kingdom, and the performed after rain, when the soil and vegetation are United States. Within the U.S. it has been found in moist. During dry periods, a survey site can appear Iowa, Maine, Massachusetts, Michigan, Minnesota, and completely devoid of snails, while after a rain the same Wisconsin (Frest 1990, NatureServe 2007, Nekola site can be found to contain numerous individuals. 1998). This species was not known from North Temperatures should be warm enough that the ground is America until 1986 when it was discovered in Iowa and not frozen and there is no snow. Dry, hot periods during Wisconsin (Frest 1990, Nekola 1998). mid-summer should be avoided. The best time of day to survey is often in early morning when conditions are State distribution: E.
    [Show full text]
  • Corel Ventura
    Ruthenica, 2005, 15(2): 119-124. ©Ruthenica, 2005 New data on the species of the genus Cochlicopa (Gastropoda, Pulmonata) Alexey L. MAMATKULOV A. N. Severtzov Institute of Ecology and Evolution, Russian Academy of Sciences, Leninskyi Prospect 33, Moscow 119071, RUSSIA ABSTRACT. Structural peculiarities of male repro- evidence was presented that self-fertilization is the ductive tract of Cochlicopa lubrica (Müller, 1704) main but not a single breeding mode of Cochlicopa enable to assume that reproduction takes place all over [Ambruster, Schlegel, 1994]. It was unknown whet- the warm period. The male genitalia condition referred her these species possess spermatophores. to as lubrica-type is a spermatogenesis (male) phase. The purpose of the present study was to find out Spermatophore of Cochlicopa lubrica is described. what are lubrica-type male genitalia; whether a sper- Anatomical investigation confirms that C. repentina is matophore exists and what is the duration of repro- a synonym of C. lubrica. duction period. The investigation was carried out in Tula region, Central Russia. During the investigation about 320 specimens of the two Cochlicopa species Introduction have been dissected. According to the last guide to Pupillina molluscs Material [Schileyko, 1984], three Cochlicopa species occur in Eastern Europe: Cochlicopa lubrica (Müller, Cochlicopa lubrica (Müller, 1774) 1774), C. lubricella (Porro, 1838) and C. nitens 292 specimens of Cochlicopa lubrica from 26 localities (Gallenstein, 1852). The species can be easily dis- were examined. They were collected as follows: 12 spe- tinguished by shell size. Genital organs of the genus, cimens from Belousov Park, Tula, on April 12, 2001; as in most Pupillina, are characterized by the pre- 11 specimens from Michurino Settlement: 3 on April 15, sence of a peculiar appendix in the male tract.
    [Show full text]
  • Organismu Latviskie Nosaukumi (2)
    Biosistēmu Terminoloģijas Centra Biļetens 1(1) (2017): 21–51 ISSN 2501-0336 (online) http://www.rpd-science.org/BTCB/V001/BTCB_1_4.pdf © “RPD Science” Citēšanai: BTCB, 2017. Organismu latviskie nosaukumi (2). Biosistēmu Terminoloģijas Centra Biļetens 1(1): 21–51 Organismu latviskie nosaukumi (2) Latvian names of organisms (2) Zinātniskais nosaukums Atbilstība Pēdējā Scientific name Equivalence pārbaude Last verification A Abies gmelinii Rupr. (1845) = Larix gmelinii (Rupr.) Rupr. var. gmelinii 17.12.2016. Abies ledebourii Rupr. (1845) = Larix gmelinii (Rupr.) Rupr. var. gmelinii 17.12.2016. Abies menziesii Mirb. (1825) = Pseudotsuga menziesii (Mirb.) Franco var. menziesii 17.12.2016. Acaciaceae = Fabaceae 27.12.2016. Acalitus brevitarsus (Fockeu, 1890) melnalkšņa maurērce 16.12.2016. Acalitus calycophthirus (Nalepa, 1891) bērzu pumpurērce 16.12.2016. Acalitus essigi (Hassan, 1928) aveņu pangērce 16.12.2016. Acalitus longisetosus (Nalepa, 1892) bērzu sārtā maurērce 16.12.2016. Acalitus phloeocoptes (Nalepa, 1890) plūmju stumbra pangērce 16.12.2016. Acalitus phyllereus (Nalepa, 1919) baltalkšņa maurērce 16.12.2016. Acalitus plicans (Nalepa, 1917) dižskābaržu maurērce 16.12.2016. Acalitus rudis (Canestrini, 1890) bērzu baltā maurērce 16.12.2016. Acalitus stenaspis (Nalepa, 1891) dižskābaržu lapmalērce 16.12.2016. Acalitus vaccinii (Keifer, 1939) melleņu pumpurērce 16.12.2016. Acanthinula aculeata (O. F. Müller, 1774) mazais dzeloņgliemezis 16.12.2016. Acanthinula spinifera Mousson, 1872 Spānijas dzeloņgliemezis 16.12.2016. Acanthocardia echinata (Linnaeus, 1758) dzelkņainā sirsniņgliemene 16.12.2016. Acanthochitona crinita (Pennant, 1777) zaļais bruņgliemis 16.12.2016. Aceria brevipunctatus (Nalepa, 1889) = Aceria campestricola (Frauenfeld, 1865) 16.12.2016. Aceria brevirostris (Nalepa, 1892) ziepenīšu pangērce 16.12.2016. Aceria brevitarsus (Fockeu, 1890) = Acalitus brevitarsus (Fockeu, 1890) 16.12.2016.
    [Show full text]
  • The Species Question in Freshwater Malacology: from Linnaeus to the Present Day
    See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/323748481 THE SPECIES QUESTION IN FRESHWATER MALACOLOGY: FROM LINNAEUS TO THE PRESENT DAY Article · March 2018 DOI: 10.12657/folmal.026.005 CITATIONS READS 0 126 1 author: Maxim Vinarski Saint Petersburg State University 134 PUBLICATIONS 664 CITATIONS SEE PROFILE Some of the authors of this publication are also working on these related projects: Biological diversity and taxonomy of freshwater snails of Central Asia View project Origin of freshwater fauna in Iceland: Cryptic glacial refugia or postglacial founder events? View project All content following this page was uploaded by Maxim Vinarski on 14 March 2018. The user has requested enhancement of the downloaded file. Folia Malacol. 26(1): 39–52 https://doi.org/10.12657/folmal.026.005 THE SPECIES QUESTION IN FRESHWATER MALACOLOGY: FROM LINNAEUS TO THE PRESENT DAY1 MAXIM V. VINARSKI Saint-Petersburg State University, Universitetskaya Naberezhnaya, 7/9, 199034 Saint-Petersburg/Omsk State Pedagogical University, 14 Tukhachevskogo Emb., 644099 Omsk, Russian Federation (e-mail: [email protected]) ABSTRACT: The history of the species problem as applied to freshwater molluscs, from the beginning of scientific taxonomy to the present day, is outlined. Three main approaches to delineation of species boundaries (intuitive, conceptual, and operational) are discussed, with remarks on their practical usage in freshwater malacology. The central topic of the article is how malacologists changed their views on the essence of species category and the impact of these changes on the taxonomic practice. The opinions of some prominent and prolific workers in the field (Bourguignat, Kobelt, Hubendick, Starobogatov) are analysed as well as the debates around the theoretical foundations and practical results of the ‘Nouvelle École’ of the 19th century and the ‘comparatory’ systematics of the 20th century.
    [Show full text]
  • An Inventory of the Land Snails and Slugs (Gastropoda: Caenogastropoda and Pulmonata) of Knox County, Tennessee Author(S): Barbara J
    An Inventory of the Land Snails and Slugs (Gastropoda: Caenogastropoda and Pulmonata) of Knox County, Tennessee Author(s): Barbara J. Dinkins and Gerald R. Dinkins Source: American Malacological Bulletin, 36(1):1-22. Published By: American Malacological Society https://doi.org/10.4003/006.036.0101 URL: http://www.bioone.org/doi/full/10.4003/006.036.0101 BioOne (www.bioone.org) is a nonprofit, online aggregation of core research in the biological, ecological, and environmental sciences. BioOne provides a sustainable online platform for over 170 journals and books published by nonprofit societies, associations, museums, institutions, and presses. Your use of this PDF, the BioOne Web site, and all posted and associated content indicates your acceptance of BioOne’s Terms of Use, available at www.bioone.org/page/terms_of_use. Usage of BioOne content is strictly limited to personal, educational, and non-commercial use. Commercial inquiries or rights and permissions requests should be directed to the individual publisher as copyright holder. BioOne sees sustainable scholarly publishing as an inherently collaborative enterprise connecting authors, nonprofit publishers, academic institutions, research libraries, and research funders in the common goal of maximizing access to critical research. Amer. Malac. Bull. 36(1): 1–22 (2018) An Inventory of the Land Snails and Slugs (Gastropoda: Caenogastropoda and Pulmonata) of Knox County, Tennessee Barbara J. Dinkins1 and Gerald R. Dinkins2 1Dinkins Biological Consulting, LLC, P O Box 1851, Powell, Tennessee 37849, U.S.A [email protected] 2McClung Museum of Natural History and Culture, 1327 Circle Park Drive, Knoxville, Tennessee 37916, U.S.A. Abstract: Terrestrial mollusks (land snails and slugs) are an important component of the terrestrial ecosystem, yet for most species their distribution is not well known.
    [Show full text]