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Four New Species of the Genus Semisulcospira
Bulletin of the Mizunami Fossil Museum, no. 45 (March 15, 2019), p. 87–94, 3 fi gs. © 2019, Mizunami Fossil Museum Four new species of the genus Semisulcospira (Mollusca: Caenogastropoda: Semisulcospiridae) from the Plio– Pleistocene Kobiwako Group, Mie and Shiga Prefectures, central Japan Keiji Matsuoka* and Osamu Miura** * Toyohashi Museum of Natural History, 1-238 Oana, Oiwa-cho, Toyohashi City, Aichi 441-3147, Japan <[email protected]> ** Faculty of Agriculture and Marine Science, Kochi University, 200 Monobe, Nankoku, Kochi 783-8502, Japan <[email protected]> Abstract Four new species of the freshwater snail in the genus Semisulcospira are described from the early Pleistocene Gamo Formation and the late Pliocene Ayama and Koka Formations of the Kobiwako Group in central Japan. These four new species belong to the subgenus Biwamelania. Semisulcospira (Biwamelania) reticulataformis, sp. nov., Semisulcospira (Biwamelania) nojirina, sp. nov., Semisulcospira (Biwamelania) gamoensis, sp. nov., and Semisulcospira (Biwamelania) tagaensis, sp. nov. are newly described herein. The authorship of Biwamelania is attributed to Matsuoka and Nakamura (1981) and Melania niponica Smith, 1876, is designated as the type species of Biwamelania by Matsuoka and Nakamura (1981). Key words: Semisulcospiridae, Semisulcospira, Biwamelania, Pliocene, Pleistocene, Kobiwako Group, Japan Introduction six were already described; Semisulcospira (Biwamelania) praemultigranosa Matsuoka, 1985, Semisulcospira Boettger, 1886 is a freshwater was described from the Pliocene Iga Formation that gastropod genus widely distributed in East Asia. A is the lower part of the Kobiwako Group (Matsuoka, group of Semisulcospira has adapted to the 1985) and five species, Semisulcospira (Biwamelania) environments of Lake Biwa and has acquired unique nakamurai Matsuoka and Miura, 2018, morphological characters, forming an endemic group Semisulcospira (Biwamelania) pseudomultigranosa called the subgenus Biwamelania. -
Species Fact Sheet with Juga Hemphilli Hemphilli
SPECIES FACT SHEET Scientific Name: Juga hemphilli hemphilli (Henderson 1935) Common Name: barren juga Phylum: Mollusca Class: Gastropoda Order: Neotaenioglossa Family: Semisulcospiridae Taxonomic Note: Past genetic analysis by Lee et al. (2006) based on incorrectly identified museum voucher specimens suggested reassignment of the related subspecies Juga hemphilli dallesensis (and therefore the Juga hemphilli conspecifics, including Juga hemphilli hemphilli) to the genus Elimia. However, Foighil et al. (2009) conducted an additional analysis and determined that Juga hemphilli is indeed most closely related to other western Juga and should not be reassigned to the genus Elimia. Turgeon et al. (1998) do not recognize any subspecies of Juga hemphilli. Conservation Status: Global Status: G2T1 (May 2009) National Status: United States (N1) (June 2000) State Statuses: Oregon (S1), Wahington (S1) (NatureServe 2015) IUCN Red List: NE – Not evaluated Technical Description: This subspecies was originally described as Goniobasis hemphilli hemphilli (Henderson 1935). Burch (1982; 1989) revised this subspecies to the genus Juga to reflect the distribution of taxa west of the Continental Divide. Adult: Juga is a genus of medium-sized, aquatic, gilled snails traditionally treated as part of the subfamily Semisulcospirinae within the Pleuroceridae family, although the Semisulcospirinae subfamily was recently elevated to family level based on morphological and molecular evidence (Strong and Köhler 2009). The Pleuroceridae and Semisulcospiridae families both differ from the Hydrobiidae family in that the males lack a verge (male copulatory organ). The genus Juga is distinct from related pleurocerid snails based on reproductive anatomy and egg mass characters (Taylor 1966), as well as features of the ovipositor pore, radula, midgut, kidney, and pallial gonoduct (Strong and Frest 2007). -
Gastropoda, Pleuroceridae), with Implications for Pleurocerid Conservation
Zoosyst. Evol. 93 (2) 2017, 437–449 | DOI 10.3897/zse.93.14856 museum für naturkunde Genetic structuring in the Pyramid Elimia, Elimia potosiensis (Gastropoda, Pleuroceridae), with implications for pleurocerid conservation Russell L. Minton1, Bethany L. McGregor2, David M. Hayes3, Christopher Paight4, Kentaro Inoue5 1 Department of Biological and Environmental Sciences, University of Houston Clear Lake, 2700 Bay Area Boulevard MC 39, Houston, Texas 77058 USA 2 Florida Medical Entomology Laboratory, Institute of Food and Agricultural Sciences, University of Florida, 200 9th Street SE, Vero Beach, Florida 32962 USA 3 Department of Biological Sciences, Eastern Kentucky University, 521 Lancaster Avenue, Richmond, Kentucky 40475 USA 4 Department of Biological Sciences, University of Rhode Island, 100 Flagg Road, Kingston, Rhode Island 02881 USA 5 Texas A&M Natural Resources Institute, 578 John Kimbrough Boulevard, 2260 TAMU, College Station, Texas 77843 USA http://zoobank.org/E6997CB6-F054-4563-8C57-6C0926855053 Corresponding author: Russell L. Minton ([email protected]) Abstract Received 7 July 2017 The Interior Highlands, in southern North America, possesses a distinct fauna with nu- Accepted 19 September 2017 merous endemic species. Many freshwater taxa from this area exhibit genetic structuring Published 15 November 2017 consistent with biogeography, but this notion has not been explored in freshwater snails. Using mitochondrial 16S DNA sequences and ISSRs, we aimed to examine genetic struc- Academic editor: turing in the Pyramid Elimia, Elimia potosiensis, at various geographic scales. On a broad Matthias Glaubrecht scale, maximum likelihood and network analyses of 16S data revealed a high diversity of mitotypes lacking biogeographic patterns across the range of E. -
The Panamic Biota: Some Observations Prior to a Sea-Level Canal
Bulletin of the Biological Society of Washington No. 2 THE PANAMIC BIOTA: SOME OBSERVATIONS PRIOR TO A SEA-LEVEL CANAL A Symposium Sponsored by The Biological Society of Washington The Conservation Foundation The National Museum of Natural History The Smithsonian Institution MEREDITH L. JONES, Editor September 28, 1972 CONTENTS Foreword The Editor - - - - - - - - - - Introduction Meredith L. Jones ____________ vi A Tribute to Waldo Lasalle Schmitt George A. Llano 1 Background for a New, Sea-Level, Panama Canal David Challinor - - - - - - - - - - - Observations on the Ecology of the Caribbean and Pacific Coasts of Panama - - - - Peter W. Glynn _ 13 Physical Characteristics of the Proposed Sea-Level Isthmian Canal John P. Sheffey - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 31 Exchange of Water through the Proposed Sea-Level Canal at Panama Donald R. F. Harleman - - - - - - - - - - - - - - - - - - - - - - - - - - - 41 Biological Results of the University of Miami Deep-Sea Expeditions. 93. Comments Concerning the University of Miami's Marine Biological Survey Related to the Panamanian Sea-Level Canal Gilbert L. Voss - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 49 Museums as Environmental Data Banks: Curatorial Problems Posed by an Extensive Biological Survey Richard S. Cowan - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 59 A Review of the Marine Plants of Panama Sylvia A. Earle - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 69 Ecology and Species Diversity of -
Ralph Waldo Emerson and the Ever-Evolving Art of Self
RALPH WALDO EMERSON AND THE EVER-EVOLVING ART OF SELF-RELIANT READING BY THEODORE REND BARTON A Thesis Submitted to the Graduate Faculty of WAKE FOREST UNIVERSITY GRADUATE SCHOOL OF ARTS AND SCIENCES in Partial Fulfillment of the Requirements for the Degree of MASTER OF ARTS English December 2012 Winston-Salem, North Carolina Approved by: Eric Wilson, Ph.D., Advisor Barry Maine, Ph.D., Chair Omaar Hena, Ph.D. My efforts and their results are dedicated to my grandmothers Irene Sauban and Jeanne Barton whose lives demonstrated the magnanimous effects of constant reading, and also to my brother William Barton who never hesitates to read from the text of the world. ii ACKNOWLEDGEMENTS This project and I are indebted to innumerable people for their love, support, and patience. I will always have indefatigable gratitude for my time with Eric Wilson, and for his indelible influence on my intellectual development while at Wake Forest University and in London. It must be rare that a graduate student is given the opportunity to study with a mentor whom he truly admires and looks up to, and I am cognizant of how lucky I’ve been. Similarly, it’s difficult to express the extent of my appreciation for Omaar Hena, but it’s clear that Wake is unbelievably lucky to employ him for what is certain to be a ground breaking and distinguished career in post-colonial studies. I also must thank my Cal. State professors Chad Luck, Margaret Doane, Cynthia Cotter, and Julie Sophia Paegle for preparing me for the rigors of graduate school and for their encouragement. -
Title Further Records of Introduced Semisulcospira Snails in Japan
Further records of introduced Semisulcospira snails in Japan Title (Mollusca, Gastropoda): implications for these snails’ correct morphological identification Sawada, Naoto; Toyohara, Haruhiko; Miyai, Takuto; Nakano, Author(s) Takafumi Citation BioInvasions Records (2020), 9(2): 310-319 Issue Date 2020-04-24 URL http://hdl.handle.net/2433/250819 © Sawada et al. This is an open access article distributed Right under terms of the Creative Commons Attribution License (Attribution 4.0 International - CC BY 4.0). Type Journal Article Textversion publisher Kyoto University BioInvasions Records (2020) Volume 9, Issue 2: 310–319 CORRECTED PROOF Rapid Communication Further records of introduced Semisulcospira snails in Japan (Mollusca, Gastropoda): implications for these snails’ correct morphological identification Naoto Sawada1,*, Haruhiko Toyohara1, Takuto Miyai2 and Takafumi Nakano3 1Division of Applied Biosciences, Graduate School of Agriculture, Kyoto University, Kyoto 606-8502, Japan 216-4, Oshikiri, Ichikawa City, Chiba 272-0107, Japan 3Department of Zoology, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan Author e-mails: [email protected] (NS), [email protected] (HT), [email protected] (TM), [email protected] (TN) *Corresponding author Citation: Sawada N, Toyohara H, Miyai T, Nakano T (2020) Further records of Abstract introduced Semisulcospira snails in Japan (Mollusca, Gastropoda): implications for Seven species of the freshwater snail genus Semisulcospira, which are indigenous these snails’ correct morphological taxa of the largest lake in Japan, Lake Biwa, have been introduced into 17 localities, identification. BioInvasions Records 9(2): including five newly recorded localities. Among these species, S. dilatata Watanabe 310–319, https://doi.org/10.3391/bir.2020.9.2.16 and Nishino, 1995, S. -
Neotrigonia Margaritacea Lamarck (Mollusca): Comparison with Other Bivalves, Especially Trigonioida and Unionoida
HELGOL.~NDER MEERESUNTERSUCHUNGEN Helgol~nder Meeresunters. 50, 259-264 (1996) Spermatozoan ultrastructure in the trigonioid bivalve Neotrigonia margaritacea Lamarck (Mollusca): comparison with other bivalves, especially Trigonioida and Unionoida J. M. Healy Department of Zoology, University of Queensland; St. Lucia 4072, Brisbane, Queensland Australia ABSTRACT: Spermatozoa of the trigonioid bivalve Neotrigonia margaritacea (Lamarck) (Trigoniidae, Trigonioida) are examined ultrastructurally. A cluster of discoidal, proacrosomal vesicles (between 9 to 15 in number) constitutes the acrosomal complex at the nuclear apex. The nucleus is short {2.4-2.6 ~m long, maximum diameter 2.2 ~tm), blunt-conical in shape, and exhibits irregular lacunae within its contents. Five or sometimes four round mitochondria are impressed into shallow depressions in the base of the nucleus as is a discrete centriolar fossa. The mitochondria surround two orthogonally arranged centrioles to form, collectively, the midpiece region. The distal centriole, anchored by nine satellite fibres to the plasma membrane, acts as a basal body to the sperm flagellum. The presence of numerous proacrosomal vesicles instead of a single, conical acrosomal vesicle sets Neotrigonia (and the Trigonioida) apart from other bivalves, with the exception of the Unionoida which are also known to exhibit this multivesicular condition. Sper- matozoa of N. margaritacea are very similar to those of the related species Neotrigonia bednalli (Verco) with the exception that the proacrosomal vesicles of N. margalqtacea are noticeably larger than those of N. bednalli. INTRODUCTION The Trigonioida constitute an important and ancient order of marine bivalves which are perhaps best known from the numerous species and genera occurring in Jurassic and Cretaceous horizons (Cox, 1952; Fleming, 1964; Newell & Boyd, 1975; Stanley, 1977, 1984). -
Effects of Trematode Infection on Metabolism and Activity in a Freshwater Snail, Semisulcospira Libertina
DISEASES OF AQUATIC ORGANISMS Vol. 45: 141–144, 2001 Published June 20 Dis Aquat Org Effects of trematode infection on metabolism and activity in a freshwater snail, Semisulcospira libertina Kazuko Shinagawa*, Misako Urabe**, Makoto Nagoshi*** Department of Biological Science, Faculty of Science, Nara Women’s University, Kitauoyanishi-machi, Nara 630-8506, Japan ABSTRACT: Changes in the metabolism and activity of the freshwater snail Semisulcospira libertina infected with larval trematodes were studied experimentally. In snails up to 11 mm in shell width, crawling distance, feeding frequency, and the proportion of individuals located on vertical walls did not differ among snails infected with mature or immature cercariae, or uninfected snails (p > 0.05). In snails larger than 11 mm, individuals infected with mature cercariae tended to feed more frequently during the light period (p = 0.0081), but the distance they crawled and the proportion of individuals located on vertical walls did not differ, regardless of infection (p > 0.05). Infection with mature cer- cariae significantly increased the oxygen consumption rate (p = 0.016), which was measured only in the large size. KEY WORDS: Semisulcospira libertina · Larval trematodes · Activity · Metabolism Resale or republication not permitted without written consent of the publisher INTRODUCTION of many species of trematodes (Ito 1964, 1988). We reported that snails infected with larval trematodes Many studies have reported the behavioral alter- were found in deeper locations than uninfected snails ation of hosts caused by parasitic infection and inter- (Shinagawa et al. 1999a). The pattern of water depth pret this as an induced adaptation by parasites to selection by infected and uninfected snails also dif- facilitate transfer to the next-stage hosts. -
List of Bivalve Molluscs from British Columbia, Canada
List of Bivalve Molluscs from British Columbia, Canada Compiled by Robert G. Forsyth Research Associate, Invertebrate Zoology, Royal BC Museum, 675 Belleville Street, Victoria, BC V8W 9W2; [email protected] Rick M. Harbo Research Associate, Invertebrate Zoology, Royal BC Museum, 675 Belleville Street, Victoria BC V8W 9W2; [email protected] Last revised: 11 October 2013 INTRODUCTION Classification rankings are constantly under debate and review. The higher classification utilized here follows Bieler et al. (2010). Another useful resource is the online World Register of Marine Species (WoRMS; Gofas 2013) where the traditional ranking of Pteriomorphia, Palaeoheterodonta and Heterodonta as subclasses is used. This list includes 237 bivalve species from marine and freshwater habitats of British Columbia, Canada. Marine species (206) are mostly derived from Coan et al. (2000) and Carlton (2007). Freshwater species (31) are from Clarke (1981). Common names of marine bivalves are from Coan et al. (2000), who adopted most names from Turgeon et al. (1998); common names of freshwater species are from Turgeon et al. (1998). Changes to names or additions to the fauna since these two publications are marked with footnotes. Marine groups are in black type, freshwater taxa are in blue. Introduced (non-indigenous) species are marked with an asterisk (*). Marine intertidal species (n=84) are noted with a dagger (†). Quayle (1960) published a BC Provincial Museum handbook, The Intertidal Bivalves of British Columbia. Harbo (1997; 2011) provided illustrations and descriptions of many of the bivalves found in British Columbia, including an identification guide for bivalve siphons and “shows”. Lamb & Hanby (2005) also illustrated many species. -
Seasonal Reproductive Anatomy and Sperm Storage in Pleurocerid Gastropods (Cerithioidea: Pleuroceridae) Nathan V
989 ARTICLE Seasonal reproductive anatomy and sperm storage in pleurocerid gastropods (Cerithioidea: Pleuroceridae) Nathan V. Whelan and Ellen E. Strong Abstract: Life histories, including anatomy and behavior, are a critically understudied component of gastropod biology, especially for imperiled freshwater species of Pleuroceridae. This aspect of their biology provides important insights into understanding how evolution has shaped optimal reproductive success and is critical for informing management and conser- vation strategies. One particularly understudied facet is seasonal variation in reproductive form and function. For example, some have hypothesized that females store sperm over winter or longer, but no study has explored seasonal variation in accessory reproductive anatomy. We examined the gross anatomy and fine structure of female accessory reproductive structures (pallial oviduct, ovipositor) of four species in two genera (round rocksnail, Leptoxis ampla (Anthony, 1855); smooth hornsnail, Pleurocera prasinata (Conrad, 1834); skirted hornsnail, Pleurocera pyrenella (Conrad, 1834); silty hornsnail, Pleurocera canaliculata (Say, 1821)). Histological analyses show that despite lacking a seminal receptacle, females of these species are capable of storing orientated sperm in their spermatophore bursa. Additionally, we found that they undergo conspicuous seasonal atrophy of the pallial oviduct outside the reproductive season, and there is no evidence that they overwinter sperm. The reallocation of resources primarily to somatic functions outside of the egg-laying season is likely an adaptation that increases survival chances during winter months. Key words: Pleuroceridae, Leptoxis, Pleurocera, freshwater gastropods, reproduction, sperm storage, anatomy. Résumé : Les cycles biologiques, y compris de l’anatomie et du comportement, constituent un élément gravement sous-étudié de la biologie des gastéropodes, particulièrement en ce qui concerne les espèces d’eau douce menacées de pleurocéridés. -
Molecular Phylogeny of the Bivalve Superfamily Galeommatoidea
Goto et al. BMC Evolutionary Biology 2012, 12:172 http://www.biomedcentral.com/1471-2148/12/172 RESEARCH ARTICLE Open Access Molecular phylogeny of the bivalve superfamily Galeommatoidea (Heterodonta, Veneroida) reveals dynamic evolution of symbiotic lifestyle and interphylum host switching Ryutaro Goto1,2*, Atsushi Kawakita3, Hiroshi Ishikawa4, Yoichi Hamamura5 and Makoto Kato1 Abstract Background: Galeommatoidea is a superfamily of bivalves that exhibits remarkably diverse lifestyles. Many members of this group live attached to the body surface or inside the burrows of other marine invertebrates, including crustaceans, holothurians, echinoids, cnidarians, sipunculans and echiurans. These symbiotic species exhibit high host specificity, commensal interactions with hosts, and extreme morphological and behavioral adaptations to symbiotic life. Host specialization to various animal groups has likely played an important role in the evolution and diversification of this bivalve group. However, the evolutionary pathway that led to their ecological diversity is not well understood, in part because of their reduced and/or highly modified morphologies that have confounded traditional taxonomy. This study elucidates the taxonomy of the Galeommatoidea and their evolutionary history of symbiotic lifestyle based on a molecular phylogenic analysis of 33 galeommatoidean and five putative galeommatoidean species belonging to 27 genera and three families using two nuclear ribosomal genes (18S and 28S ribosomal DNA) and a nuclear (histone H3) and mitochondrial (cytochrome oxidase subunit I) protein-coding genes. Results: Molecular phylogeny recovered six well-supported major clades within Galeommatoidea. Symbiotic species were found in all major clades, whereas free-living species were grouped into two major clades. Species symbiotic with crustaceans, holothurians, sipunculans, and echiurans were each found in multiple major clades, suggesting that host specialization to these animal groups occurred repeatedly in Galeommatoidea. -
TREATISE ONLINE Number 48
TREATISE ONLINE Number 48 Part N, Revised, Volume 1, Chapter 31: Illustrated Glossary of the Bivalvia Joseph G. Carter, Peter J. Harries, Nikolaus Malchus, André F. Sartori, Laurie C. Anderson, Rüdiger Bieler, Arthur E. Bogan, Eugene V. Coan, John C. W. Cope, Simon M. Cragg, José R. García-March, Jørgen Hylleberg, Patricia Kelley, Karl Kleemann, Jiří Kříž, Christopher McRoberts, Paula M. Mikkelsen, John Pojeta, Jr., Peter W. Skelton, Ilya Tëmkin, Thomas Yancey, and Alexandra Zieritz 2012 Lawrence, Kansas, USA ISSN 2153-4012 (online) paleo.ku.edu/treatiseonline PART N, REVISED, VOLUME 1, CHAPTER 31: ILLUSTRATED GLOSSARY OF THE BIVALVIA JOSEPH G. CARTER,1 PETER J. HARRIES,2 NIKOLAUS MALCHUS,3 ANDRÉ F. SARTORI,4 LAURIE C. ANDERSON,5 RÜDIGER BIELER,6 ARTHUR E. BOGAN,7 EUGENE V. COAN,8 JOHN C. W. COPE,9 SIMON M. CRAgg,10 JOSÉ R. GARCÍA-MARCH,11 JØRGEN HYLLEBERG,12 PATRICIA KELLEY,13 KARL KLEEMAnn,14 JIřÍ KřÍž,15 CHRISTOPHER MCROBERTS,16 PAULA M. MIKKELSEN,17 JOHN POJETA, JR.,18 PETER W. SKELTON,19 ILYA TËMKIN,20 THOMAS YAncEY,21 and ALEXANDRA ZIERITZ22 [1University of North Carolina, Chapel Hill, USA, [email protected]; 2University of South Florida, Tampa, USA, [email protected], [email protected]; 3Institut Català de Paleontologia (ICP), Catalunya, Spain, [email protected], [email protected]; 4Field Museum of Natural History, Chicago, USA, [email protected]; 5South Dakota School of Mines and Technology, Rapid City, [email protected]; 6Field Museum of Natural History, Chicago, USA, [email protected]; 7North