Заднежаберные Моллюски Отряда Cephalaspidea (Gastropoda: Opisthobranchia) Залива Восток Японского Моря
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The Ultrastructure of Spermatozoa and Spermiogenesis in Pyramidellid Gastropods, and Its Systematic Importance John M
HELGOLANDER MEERESUNTERSUCHUNGEN Helgol~inder Meeresunters. 42,303-318 (1988) The ultrastructure of spermatozoa and spermiogenesis in pyramidellid gastropods, and its systematic importance John M. Healy School of Biological Sciences (Zoology, A08), University of Sydney; 2006, New South Wales, Australia ABSTRACT: Ultrastructural observations on spermiogenesis and spermatozoa of selected pyramidellid gastropods (species of Turbonilla, ~gulina, Cingufina and Hinemoa) are presented. During spermatid development, the condensing nucleus becomes initially anterio-posteriorly com- pressed or sometimes cup-shaped. Concurrently, the acrosomal complex attaches to an electron- dense layer at the presumptive anterior pole of the nucleus, while at the opposite (posterior) pole of the nucleus a shallow invagination is formed to accommodate the centriolar derivative. Midpiece formation begins soon after these events have taken place, and involves the following processes: (1) the wrapping of individual mitochondria around the axoneme/coarse fibre complex; (2) later internal metamorphosis resulting in replacement of cristae by paracrystalline layers which envelope the matrix material; and (3) formation of a glycogen-filled helix within the mitochondrial derivative (via a secondary wrapping of mitochondria). Advanced stages of nuclear condensation {elongation, transformation of fibres into lamellae, subsequent compaction) and midpiece formation proceed within a microtubular sheath ('manchette'). Pyramidellid spermatozoa consist of an acrosomal complex (round -
Pyramidellidae, Philinidae Et Retusidae De La Région De
PYRAMIDELLIDAE, PHILINIDAE ET RETUSIDAE DE LA RÉG ION DE ROSCOFF. ÉTUDE PARTICULIÈRE DES PROTOCONQUES DE QUELQUES ESPÈCES. (I) par Celso Rodriguez Babio ( 2 ) e t Catherine Thiriot-Quiévreux Station biologique de Roscoff et Centre océanologique de Bretagne (Brest). Résumé Des observations au microscope électronique à balayage ont été effectuées sur les coquilles de plusieurs espèces de Gastéropodes de la région de Roscoff : Pyra midellidae, Odostomia acuta, 0. unidentata, O. turrita, O. plicata, O. scalaris, O. lukisi, Turbonilla crenata, T. elegantissima, T. innovata, Chrysallida decussata, C. excavata, C. obtusa, C. spiralis, Evalea obliqua Philinidae, ; Philine catena ; R etu sid ae, Retusa mammillata, R. truncatula. La protoconque et les premiers tours de spire juvéniles sont plus particuliè rement étudiés. Parmi les Pyramidellidae, nous avons séparé quatre types de protoconques : — type A : protoconque sénestre, turriculée, axe d’enroulement perpendiculaire à celui de la téloconque ; présent chez Odostomia acuta, O. unidentata, O. turrita, O. plicata et Turbonilla elegantissima, espèces à développement pélagique (ana logue à celui de O. acuta décrit par Thorsoni ; — type B : protoconque sénestre, globuleuse et à enroulement planorbiforme ; présent chez Turbonilla crenata, espèce à développement pélagique ; — type C : protoconque sénestre, apex masqué par le dernier tour de spire et avec une petite ornementation granuleuse, présent chez Evalea obliqua, espèce à déve loppement direct ou à très courte phase pélagique ; — type D : protoconque sénestre et lisse, apex masqué par le dernier tour de spire ; présent chez Odostomia scalaris, Turbonilla innovata, Chrysallida decussata, C. excavata, C. obtusa, C. spiralis, espèces à développement direct ou à très courte phase pélagique (analogue à celui deOdostomia eulimoides, décrit par Lebouri. -
An Annotated Checklist of the Marine Macroinvertebrates of Alaska David T
NOAA Professional Paper NMFS 19 An annotated checklist of the marine macroinvertebrates of Alaska David T. Drumm • Katherine P. Maslenikov Robert Van Syoc • James W. Orr • Robert R. Lauth Duane E. Stevenson • Theodore W. Pietsch November 2016 U.S. Department of Commerce NOAA Professional Penny Pritzker Secretary of Commerce National Oceanic Papers NMFS and Atmospheric Administration Kathryn D. Sullivan Scientific Editor* Administrator Richard Langton National Marine National Marine Fisheries Service Fisheries Service Northeast Fisheries Science Center Maine Field Station Eileen Sobeck 17 Godfrey Drive, Suite 1 Assistant Administrator Orono, Maine 04473 for Fisheries Associate Editor Kathryn Dennis National Marine Fisheries Service Office of Science and Technology Economics and Social Analysis Division 1845 Wasp Blvd., Bldg. 178 Honolulu, Hawaii 96818 Managing Editor Shelley Arenas National Marine Fisheries Service Scientific Publications Office 7600 Sand Point Way NE Seattle, Washington 98115 Editorial Committee Ann C. Matarese National Marine Fisheries Service James W. Orr National Marine Fisheries Service The NOAA Professional Paper NMFS (ISSN 1931-4590) series is pub- lished by the Scientific Publications Of- *Bruce Mundy (PIFSC) was Scientific Editor during the fice, National Marine Fisheries Service, scientific editing and preparation of this report. NOAA, 7600 Sand Point Way NE, Seattle, WA 98115. The Secretary of Commerce has The NOAA Professional Paper NMFS series carries peer-reviewed, lengthy original determined that the publication of research reports, taxonomic keys, species synopses, flora and fauna studies, and data- this series is necessary in the transac- intensive reports on investigations in fishery science, engineering, and economics. tion of the public business required by law of this Department. -
A New Phylogeny of the Cephalaspidea (Gastropoda: Heterobranchia) Based on Expanded Taxon Sampling and Gene Markers Q ⇑ Trond R
Molecular Phylogenetics and Evolution 89 (2015) 130–150 Contents lists available at ScienceDirect Molecular Phylogenetics and Evolution journal homepage: www.elsevier.com/locate/ympev A new phylogeny of the Cephalaspidea (Gastropoda: Heterobranchia) based on expanded taxon sampling and gene markers q ⇑ Trond R. Oskars a, , Philippe Bouchet b, Manuel António E. Malaquias a a Phylogenetic Systematics and Evolution Research Group, Section of Taxonomy and Evolution, Department of Natural History, University Museum of Bergen, University of Bergen, PB 7800, 5020 Bergen, Norway b Muséum National d’Histoire Naturelle, UMR 7205, ISyEB, 55 rue de Buffon, F-75231 Paris cedex 05, France article info abstract Article history: The Cephalaspidea is a diverse marine clade of euthyneuran gastropods with many groups still known Received 28 November 2014 largely from shells or scant anatomical data. The definition of the group and the relationships between Revised 14 March 2015 members has been hampered by the difficulty of establishing sound synapomorphies, but the advent Accepted 8 April 2015 of molecular phylogenetics is helping to change significantly this situation. Yet, because of limited taxon Available online 24 April 2015 sampling and few genetic markers employed in previous studies, many questions about the sister rela- tionships and monophyletic status of several families remained open. Keywords: In this study 109 species of Cephalaspidea were included covering 100% of traditional family-level Gastropoda diversity (12 families) and 50% of all genera (33 genera). Bayesian and maximum likelihood phylogenet- Euthyneura Bubble snails ics analyses based on two mitochondrial (COI, 16S rRNA) and two nuclear gene markers (28S rRNA and Cephalaspids Histone-3) were used to infer the relationships of Cephalaspidea. -
Johannes Thiele and His Contributions to Zoology. Part 2. Genus-Group Names (Mollusca)
NEMOURIA Occasional Papers of the Delaware Museum of Natural History NUMBER 39 SEPTEMBER 30, 1991 JOHANNES THIELE AND HIS CONTRIBUTIONS TO ZOOLOGY. PART 2. GENUS-GROUP NAMES (MOLLUSCA) Kenneth J. Boss 1 and Rudiger Bieler2 ABSTRACT. This is the second part of a series on the German zoologist Johannes Thiele (1860-1935) and comprises a critical listing of the genus-group taxa which he described as new to malacology. Each of these names is accompanied by author and bibliographic references, original status, type-species with its original binominal spelling and bibliographic source and some data on subsequent taxonomic placements. Thiele introduced a total of 291 such names in the Phylum Mollusca, distributed as follows: 11 Aplacophora; 39 Polyplacophora; 200 Gastropoda (138 Prosobranchia; 20 Opisthobranchia and 42 Pulmonata); 31 Bivalvia; 10 Cephalopoda; there were no new scaphopod or monoplacophoran names. Of these, later authors recognized as valid 85 at the generic level, 110 at the subgeneric level; 71 are considered to be synonyms, and the remaining 25 are unjustified emendations or errors. INTRODUCTION As part of a series on the scientific contributions of Johannes Thiele, the eminent German zoologist, we provide here an alphabetical listing and analysis of all the genus-group taxa introduced by him in his publications on mollusks as delineated by Bieler & Boss (1989). A total of 291 names is included in the following format: (1) genus-group name; (2) author(s); (3) year of publication; (4) condensed bibliographic reference; (5) original status as given by Thiele; (6) subsequent status 1Museum of Comparative Zoology, Harvard University, Serial Publication Cambridge, Massachussetts 02138, U.S.A. -
Annotated Checklist of Mollusks of Chesapeake Bay
W&M ScholarWorks Reports 1956 Annotated checklist of mollusks of Chesapeake Bay J. D. Andrews Virginia Fisheries Laboratory Follow this and additional works at: https://scholarworks.wm.edu/reports Part of the Marine Biology Commons Recommended Citation Andrews, J. D. (1956) Annotated checklist of mollusks of Chesapeake Bay. Virginia Institute of Marine Science, William & Mary. https://scholarworks.wm.edu/reports/2399 This Report is brought to you for free and open access by W&M ScholarWorks. It has been accepted for inclusion in Reports by an authorized administrator of W&M ScholarWorks. For more information, please contact [email protected]. ANNOTATED CHECKLIST OF MOLLUSKS OF CHESAPEAKE BAY (Revised April 1956) J. D. Andrews Virginia Fisheries Laboratory Gloucester Point This preliminary checklist has been prepared for the use of students and biologists working in the Chesapeake Bay area. The list is conservative and probably omits a number of species, especially small snails and parasitic groups like the pyrams. All species listed, with one or two exceptions, have been collected as live specimens by the author, and collections of each have been deposited in the U. S. National Museum. Species given in the literature but not yet confirmed by specimens in the National Museum have been purposely omitted. The checklist includes all species collected in the brackish waters of Chesapeake Bay except certain fresh-water groups, e.g. the hydrobiids, which invade salty waters a short distance. The ocean shore of Virginia, both on Eastern Shore and the mainland, has been excluded. The families are arranged in the order found in Johnson's checklist and the nomenclature follows Johnson except where Abbott or Johnsonia give changes. -
Sepkoski, J.J. 1992. Compendium of Fossil Marine Animal Families
MILWAUKEE PUBLIC MUSEUM Contributions . In BIOLOGY and GEOLOGY Number 83 March 1,1992 A Compendium of Fossil Marine Animal Families 2nd edition J. John Sepkoski, Jr. MILWAUKEE PUBLIC MUSEUM Contributions . In BIOLOGY and GEOLOGY Number 83 March 1,1992 A Compendium of Fossil Marine Animal Families 2nd edition J. John Sepkoski, Jr. Department of the Geophysical Sciences University of Chicago Chicago, Illinois 60637 Milwaukee Public Museum Contributions in Biology and Geology Rodney Watkins, Editor (Reviewer for this paper was P.M. Sheehan) This publication is priced at $25.00 and may be obtained by writing to the Museum Gift Shop, Milwaukee Public Museum, 800 West Wells Street, Milwaukee, WI 53233. Orders must also include $3.00 for shipping and handling ($4.00 for foreign destinations) and must be accompanied by money order or check drawn on U.S. bank. Money orders or checks should be made payable to the Milwaukee Public Museum. Wisconsin residents please add 5% sales tax. In addition, a diskette in ASCII format (DOS) containing the data in this publication is priced at $25.00. Diskettes should be ordered from the Geology Section, Milwaukee Public Museum, 800 West Wells Street, Milwaukee, WI 53233. Specify 3Y. inch or 5Y. inch diskette size when ordering. Checks or money orders for diskettes should be made payable to "GeologySection, Milwaukee Public Museum," and fees for shipping and handling included as stated above. Profits support the research effort of the GeologySection. ISBN 0-89326-168-8 ©1992Milwaukee Public Museum Sponsored by Milwaukee County Contents Abstract ....... 1 Introduction.. ... 2 Stratigraphic codes. 8 The Compendium 14 Actinopoda. -
The Evolution of the Cephalaspidea (Mollusca: Gastropoda) and Its Implications to the Origins and Phylogeny of the Opisthobranchia Terrence Milton Gosliner
University of New Hampshire University of New Hampshire Scholars' Repository Doctoral Dissertations Student Scholarship Spring 1978 THE EVOLUTION OF THE CEPHALASPIDEA (MOLLUSCA: GASTROPODA) AND ITS IMPLICATIONS TO THE ORIGINS AND PHYLOGENY OF THE OPISTHOBRANCHIA TERRENCE MILTON GOSLINER Follow this and additional works at: https://scholars.unh.edu/dissertation Recommended Citation GOSLINER, TERRENCE MILTON, "THE EVOLUTION OF THE CEPHALASPIDEA (MOLLUSCA: GASTROPODA) AND ITS IMPLICATIONS TO THE ORIGINS AND PHYLOGENY OF THE OPISTHOBRANCHIA" (1978). Doctoral Dissertations. 1197. https://scholars.unh.edu/dissertation/1197 This Dissertation is brought to you for free and open access by the Student Scholarship at University of New Hampshire Scholars' Repository. It has been accepted for inclusion in Doctoral Dissertations by an authorized administrator of University of New Hampshire Scholars' Repository. For more information, please contact [email protected]. INFORMATION TO USERS This material was produced from a microfilm copy of the original document. While the most advanced technological means to photograph and reproduce this document have been used, the quality is heavily dependent upon the quality of the original submitted. The following explanation of techniques is provided to help you understand markings or patterns which may appear on this reproduction. 1.The sign or "target" for pages apparently lacking from the document photographed is "Missing Page(s)". If it was possible to obtain the missing page(s) or section, they are spliced into the film along with adjacent pages. This may have necessitated cutting thru an image and duplicating adjacent pages to insure you complete continuity. 2. When an image on the film is obliterated with a large round black mark, it is an indication that the photographer suspected that the copy may have moved during exposure and thus cause a blurred image. -
Pyramidellidae, Philinidae Et Retusidae De La Région De Roscoff. Etude
Art. No 241 Contribution COB NO 303 PYRAMIDELLIDAE, PHlLlNlDAE ET RETUSlDAE DE LA REGION DE ROSCOFF. ÉTUDE PARTICULIÈRE DES PROTOCONQUES DE QUELQUES ESPECES. ( I ) var Celso Rodriguez Babio (2) et Catherine Thiriot-Quiévreux Station biologique de Roscoff et Centre oc6anologique de Bretagne (Brest). Résumé ---Des observations au microscope électronique à balayage ont été effectuees sur les coquilles de plusieurs espèces de Gastéropodes de la région de Roscoff : Pyra- midellidae, Odostomia acuta, 0. unidentata, 0. furrita, 0. plicata, 0. scalaris, 0. lukisi, Turbonilla crenata, T. elegantissima, T. innouata, Chrysallida decussafa, C. excauata, C. obtusa, C. spiralis, Eualea obliqua ; Philinidae, Philine catena ;Retu- sidae, Refusa mammillata, R. fruncatula. La protoconque et les premiers tours de spire juvéniles sont plus particuliè- rement étudiés. .. Parmi les Pyramidellidae, nous avons séparé quatre types de protoconques : - type A : protoconque sénestre, turriculée, axe d'enroulement perpendiculaire à celui de la téloconque ; présent chez Odostomia acuta, 0. nnidentata, 0. turrita, O. plicata et Turbonilla elegantissima, espèces à développement pélagique (ana- logue à celui de O. acuta décrit par Thorson) ; - type B : protoconque sénestre, globuleuse et à enroiilement planorbiforme ; présent chez Turbonilla crenata, espèce à développement pélagique ; - type C : protoconque sénestre, apex masqué par le dernier tour de spire et avec une petite ornementation granuleuse, présent chez Evalea obliqzla, espèce à déve- loppement direct ou à très courte phase pélagique ; - type D : protoconque sénestre et lisse, apex masqué par le dernier tour de spire ; présent chez Odosfomia scalaris, Turbonilla innovafa, Chrysallidn decussafa, C. excavafa, C. obtusa, C. spiralis, espèces à développement direct ou à très courte phase pélagique (analogue à celui de Odosfomia eulimoides, décrit par Lebour). -
Supplement – December 2017 – Survey of the Literature on Recent
A Malacological Journal ISSN 1565-1916 No. 36 - SUPPLEMENT DECEMBER 2017 2 SURVEY OF THE LITERATURE ON RECENT SHELLS FROM THE RED SEA (third enlarged and revised edition) L.J. van Gemert* Summary This literature survey lists approximately 3,050 references. Shells are being considered here as the shell bearing molluscs of the Gastropoda, Bivalvia and Scaphopoda. The area does not only comprise the Red Sea, but also the Gulf of Aden, Somalia and the Suez Canal, including the Lessepsian species in the Mediterranean Sea. Literature on fossils shells, particularly those from the Holocene, Pleistocene and Pliocene, is listed too. Introduction My interest in recent shells from the Red Sea dates from about 1996. Since then, I have been, now and then, trying to obtain information on this subject. Some years ago I decide to stop gathering data in a haphazard way and to do it more properly. This resulted in a first survey of approximately 1,420 and a second one of 2,025 references (van Gemert, 2010 & 2011). Since then, this survey has again been enlarged and revised and a number of errors have been corrected. It contains now approximately 3,050 references. Scope In principle every publication in which molluscs are reported to live or have lived in the Red Sea should be listed in the survey. This means that besides primary literature, i.e. articles in which researchers are reporting their finds for the first time, secondary and tertiary literature, i.e. reviews, monographs, books, etc are to be included too. These publications were written not only by a wide range of authors ranging from amateur shell collectors to professional malacologists but also people interested in the field of archaeology, geology, etc. -
Jmmv19743506.Pdf
. https://doi.org/10.24199/j.mmv.1974.35.06 18 February 1974 DESCRIPTION OF RETUSA CHRYSOMA BURN SP. NOV. (OPISTHOBRANCHIA) AND ITS FOOD RESOURCES FROM CORNER INLET, VICTORIA By Robert Burn and K. N. Bell Honorary Associates, National Museum of Victoria, Melbourne Abstract Retusa chrysoma Burn sp. nov. is described from Corner Inlet, Victoria, and compared with other species reported from the Victorian coastline. Gizzard contents show selective food preferences for foraminifera and juveniles of the air breathing gastropod Salinator fragilis (Lamarck, 1822). Introduction rounded anteriorly, obliquely truncate pos- teriorly. Colour pale yellow, thin periostracum Little is known anatomically of the shell- golden yellow. Sculpture, faint growth lines at bearing opisthobranch molluscs of Victoria. anterior end develop into raised riblets on Similarly, little is known of their food resources posterior third, riblets passing obliquely over and selective preferences. Foraminifera are shoulder into vertex; encircled by fine, vari- believed to form wholly or part of the food of ably spaced, wavy lines, less noticeable pos- several species of retusid opisthobranchs teriorly where the riblets are strongest. Aper- (Bacescu and Caraion 1956, Marcus and ture anteriorly pyriform, medially narrow and Marcus 1969, Moore 1961, Morton 1958, slightly constricted, posteriorly rising above the Rudman 1971), but the overall part they play last whorl and inclined towards the axis. in the marine food-energy cycle is poorly Columella thickened, with a nearly vertical known (Lipps and Valentine 1970). plait rising at mid-length, with a broad reflex- In order to study Australian species/food ion behind the plait. Spire deeply sunk, resources, we have examined a new species of shoulder of the preceding whorl visible, sculp- Retusa collected by one of us (K.N.B.) at tured by oblique riblets descending to a large, Corner Inlet, Victoria. -
Paleontology of Cretaceous Coon Creek Editors Dana Ehret, Lynn Harrell & Sandy Ebersole BULLETIN ALABAMA MUSEUM of NATURAL HISTORY
Bulletin 33 May 1, 2016 Paleontology of Cretaceous Coon Creek Editors Dana Ehret, Lynn Harrell & Sandy Ebersole BULLETIN ALABAMA MUSEUM OF NATURAL HISTORY The scientific publication of the Alabama Museum of Natural History. Dr. Dana J. Ehret, Editor. BULLETIN ALABAMA MUSEUM OF NATURAL HISTORY is published by the Al a bama Museum of Natural History, a unit of The University of Alabama. The BULLETIN succeeds its predecessor, the MUSEUM PAPERS, which was ter mi nat ed in 1961 upon the transfer of the Museum to the University from its parent orga ni za- tion, the Geological Survey of Alabama. The BULLETIN is devoted primarily to scholarship and research concerning the natural history of Alabama and the Southeast. It appears twice yearly in consec u tive ly numbered issues. Communication concerning manuscripts, style, and editorial policy should be addressed to: Editor, BULLETIN ALABAMA MUSEUM OF NATURAL HISTORY, The University of Alabama, Box 870340, Tuscaloosa, Alabama 35487-0340; tele- phone (205) 348-7551 or emailed to [email protected]. Prospective authors should ex am ine the Notice to Au thors inside the back cover. Orders and requests for general information should be addressed to BULLETIN ALABAMA MUSEUM OF NAT U RAL HISTORY, at the above address or emailed to [email protected]. Yearly sub scrip tions (two issues) are $30.00 for indi vid u als, $50.00 for cor po ra tions and institutions. Numbers may be purchased in di vid u al ly. Payment should ac com pa ny orders and subscriptions and checks should be made out to “The Uni ver si ty of Alabama.” Library exchanges should be handled through: Exchange Librarian, The University of Alabama, Box 870266, Tuscaloosa, Alabama 35487- 0340.