Includes Abstracts from the
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
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 -
Turritella Communis (Risso, 1826)
ΣΧΟΛΗ ΘΕΤΙΚΩΝ ΕΠΙΣΤΗΜΩΝ ΤΜΗΜΑ ΓΕΩΛΟΓΙΑΣ ΤΟΜΕΑΣ ΓΕΝΙΚΗΣ ΘΑΛΑΣΣΙΑΣ ΓΕΩΛΟΓΙΑΣ ΚΑΙ ΓΕΩΔΥΝΑΜΙΚΗΣ ΕΡΓΑΣΤΗΡΙΟ ΘΑΛΑΣΣΙΑΣ ΓΕΩΛΟΓΙΑΣ ΚΑΙ ΦΥΣΙΚΗΣ ΩΚΕΑΝΟΓΡΑΦΙΑΣ ΜΙΚΡΟΠΑΛΑΙΟΝΤΟΛΟΓΙΚΕΣ ΑΝΑΛΥΣΕΙΣ ΘΑΛΑΣΣΙΩΝ ΙΖΗΜΑΤΩΝ ΤΟΥ ΑΜΒΡΑΚΙΚΟΥ ΚΟΛΠΟΥ Μεταπτυχιακή Φοιτήτρια Αρκαδιανού Μαρία Επιβλέπουσα Καθηγήτρια: Γεραγά Μαρία Τριμελής Επιτροπή: Γεραγά Μαρία Παπαθεοδώρου Γεώργιος Ηλιόπουλος Γεώργιος 0 Πάτρα, 2019 Αφιερώνεται στην οικογένειά μου που με στηρίζει σε κάθε νέο ξεκίνημα σε κάθε απόφαση… Ευχαριστίες… Θα ήθελα να ευχαριστήσω τους καθηγητές Γεραγά Μαρία και Παπαθεοδώρου Γεώργιο που μου έδωσαν τη δυνατότητα να εκπονήσω τη διπλωματική μου εργασία στον τομέα της Περιβαλλοντικής Ωκεανογραφίας δείχνοντάς μου εμπιστοσύνη και προσφέροντάς μου πολύτιμη βοήθεια. Τον καθηγητή μου Ηλιόπουλο Γεώργιο και την Δρ. Παπαδοπούλου Πηνελόπη για την πολύτιμη βοήθεια τους, την καθοδήγηση, τις χρήσιμες συμβουλές και τη στήριξη. Την Υποψήφια Διδάκτορα Τσώνη Μαρία για τις συμβουλές της στο χειρισμό ορισμένων λογισμικών. Την Υποψήφια Διδάκτορα Πρανδέκου Αμαλία για τις συμβουλές της. Τον φίλο μου Ανδρέα για τη στήριξη και την υπομονή του. Τέλος, θέλω να εκφράσω ένα μεγάλο ευχαριστώ στην οικογένειά μου που με στήριξε με κάθε τρόπο σε όλη τη διάρκεια των σπουδών μου και υπήρξαν σημαντικοί αρωγοί όλα αυτά τα χρόνια. 1 Ευχαριστίες……………………………………………………………………………………………………….....................1 ΕΙΣΑΓΩΓΗ………………………………………………………………………………………………………………………………3 Σκοπός…………………………………………………………………………………………………..................3 1. ΠΕΡΙΟΧΗ ΜΕΛΕΤΗΣ………………………………………………………………………………………………3 1.1Γενικά …………………………………………………………………………………………………………………3 -
NEAT Mollusca
NEAT (North East Atlantic Taxa): Scandinavian marine Mollusca Check-List compiled at TMBL (Tjärnö Marine Biological Laboratory) by: Hans G. Hansson 1994-02-02 / small revisions until February 1997, when it was published on Internet as a pdf file and then republished August 1998.. Citation suggested: Hansson, H.G. (Comp.), NEAT (North East Atlantic Taxa): Scandinavian marine Mollusca Check-List. Internet Ed., Aug. 1998. [http://www.tmbl.gu.se]. Denotations: (™) = Genotype @ = Associated to * = General note PHYLUM, CLASSIS, SUBCLASSIS, SUPERORDO, ORDO, SUBORDO, INFRAORDO, Superfamilia, Familia, Subfamilia, Genus & species N.B.: This is one of several preliminary check-lists, covering S Scandinavian marine animal (and partly marine protoctistan) taxa. Some financial support from (or via) NKMB (Nordiskt Kollegium för Marin Biologi), during the last years of the existence of this organization (until 1993), is thankfully acknowledged. The primary purpose of these checklists is to faciliate for everyone, trying to identify organisms from the area, to know which species that earlier have been encountered there, or in neighbouring areas. A secondary purpose is to faciliate for non-experts to put as correct names as possible on organisms, including names of authors and years of description. So far these checklists are very preliminary. Due to restricted access to literature there are (some known, and probably many unknown) omissions in the lists. Certainly also several errors may be found, especially regarding taxa like Plathelminthes and Nematoda, where the experience of the compiler is very rudimentary, or. e.g. Porifera, where, at least in certain families, taxonomic confusion seems to prevail. This is very much a small modernization of T. -
Heterobranchia (Gastropoda) from the Jurassic Deposits of Russia A
ISSN 0031-0301, Paleontological Journal, 2019, Vol. 53, No. 11, pp. 1162–1187. © Pleiades Publishing, Ltd., 2019. Heterobranchia (Gastropoda) from the Jurassic Deposits of Russia A. V. Guzhov* Borissiak Paleontological Institute, Russian Academy of Sciences, Moscow, 117647 Russia *e-mail: [email protected] Received March 11, 2018; revised November 30, 2018; accepted December 28, 2018 Abstract—Small gastropods from the Jurassic deposits of the European Russia, united into the lower Hetero- branchia or Allogastropoda, are described. The families of Ampezzanildidae, Cimidae, Cornirostridae, Ebal- idae, and Stuoraxidae are distinguished, and a set of taxa is given without reference to a definite family. The family Ampezzanildidae from the Jurassic deposits is described for the first time on the basis of the mass material, ascribed to the new genus Zizipupa gen. nov. with the sole species of Z. costata sp. nov. The family Cim- idae includes the genera of Cristalloella, Rotfanella, Urlocella, and Unzhispira gen. nov. with species C. spiralo- costata (Gründel, 1998), R. gerasimovi sp. nov., R. reticulata sp. nov., Urlocella undulata sp. nov., and Unzhispira minuta sp. nov. The genus Heteronatica gen. nov. is included into the family Cornirostridae. This genus is the first siphonostomatous representative of the given family including the sole long-living species H. globosa sp. nov., which is subdivided into subspecies H. globosa globosa and H. globosa promota subsp. nov. The family Ebalidae is represented by the genus Ebala, shells of which are distributed from the Middle Oxfordian to the Middle Volgian. The family Stuoraxidae is described based on two genera Stuoraxis and Aneudaronia gen. nov., including species of S. -
View of Morphological and Molecular Evidence Is Consistent with an Origin of Rhodopemorpha Slugs Among Shelled ‘Lower Heterobranchia’
At the limits of a successful body plan – 3D microanatomy, histology and evolution of Helminthope (Mollusca: Heterobranchia: Rhodopemorpha), the most worm-like gastropod Brenzinger et al. Brenzinger et al. Frontiers in Zoology 2013, 10:37 http://www.frontiersinzoology.com/content/10/1/37 Brenzinger et al. Frontiers in Zoology 2013, 10:37 http://www.frontiersinzoology.com/content/10/1/37 RESEARCH Open Access At the limits of a successful body plan – 3D microanatomy, histology and evolution of Helminthope (Mollusca: Heterobranchia: Rhodopemorpha), the most worm-like gastropod Bastian Brenzinger1,2*, Gerhard Haszprunar1,2 and Michael Schrödl1,2 Abstract Background: Gastropods are among the most diverse animal clades, and have successfully colonized special habitats such as the marine sand interstitial. Specialized meiofaunal snails and slugs are tiny and worm-shaped. They combine regressive features – argued to be due to progenetic tendencies – with convergent adaptations. Microscopic size and concerted convergences make morphological examination non-trivial and hamper phylogenetic reconstructions. The enigmatic turbellarian-like Rhodopemorpha are a small group that has puzzled systematists for over a century. A preliminary molecular framework places the group far closer to the root of Heterobranchia – one of the major gastropod groups – than previously suggested. The poorly known meiofaunal Helminthope psammobionta Salvini-Plawen, 1991 from Bermuda is the most worm-shaped free-living gastropod and shows apparently aberrant aspects of anatomy. Its study may give important clues to understand the evolution of rhodopemorphs among basal heterobranchs versus their previously thought origin among ‘higher’ euthyneuran taxa. Results: We describe the 3D-microanatomy of H. psammobionta using three-dimensional digital reconstruction based on serial semithin histological sections. -
Collected During the Dutch CANCAP and MAURITANIA Expeditions in the South-Eastern Part of the North Atlantic Ocean (Part 1)
Pyramidellidae (Mollusca, Gastropoda, Heterobranchia) collected during the Dutch CANCAP and MAURITANIA expeditions in the south-eastern part of the North Atlantic Ocean (part 1) CANCAP-project. Contributions, no. 119 J.J. van Aartsen, E. Gittenberger & J. Goud Aartsen, J.J. van, E. Gittenberger & J. Goud. Pyramidellidae (Mollusca, Gastropoda, Heterobranchia) collected during the Dutch CANCAP and MAURITANIA expeditions in the south-eastern part of the North Atlantic Ocean (part 1). Zool. Verh. Leiden 321, 15.vi.1998:1-57, figs 1-68.— ISSN 0024-1652/ISBN 90-73239-66-4. J.J. van Aartsen, Admiraal Helfrichlaan 33, NL 6952 GB Dieren, The Netherlands. E. Gittenberger, Department of Evertebrata, National Museum of Natural History, P.O. Box 9517, NL 2300 RA Leiden, The Netherlands (e-mail: [email protected]). J. Goud, Department of Evertebrata, National Museum of Natural History, P.O. Box 9517, NL 2300 RA Leiden, The Netherlands (e-mail: [email protected]). Key words: Pyramidellidae; new species; North Atlantic Ocean. The species of the Pyramidellidae collected during several expeditions in the south-eastern part of the North Atlantic Ocean are listed, with locality data, depth ranges, and notes on nomenclature, system- atics and distribution. The samples classified with the genera Pyramidella, Tiberia, Adelactaeon, Odetta, Folinella, Ondina, Odostomia, Puposyrnola and Eulimella (partly) are dealt with in this paper. In total 64 species are reported from the research area, 32 of which are described as new to science; one nomen novum is introduced. Lectotypes of Aclis tricarinata Watson, 1897, Monoptygma puncturata Smith, 1872, Odetta sulcata de Folin, 1870, and Odostomia sulcifera Smith, 1872, are designated and figured. -
Taxonomy and Biogeography of Late Cretaceous Gastropoda
Taxonomy and Biogeography of Late Cretaceous Gastropoda Dissertation Zur Erlangung des Doktorgrades der Naturwissenschaften im Fachbereich Geowissenschaften der Universität Hamburg vorgelegt von Steffen Kiel aus Köln Hamburg 2001 Als Dissertation angenommen vom Fachbereich Geowissenschaften der Universität Hamburg auf Grund der Gutachten von Prof. Dr. Klaus Bandel und Prof. Dr. Christian Spaeth Hamburg, den 2. November 2001 Prof. Dr. U. Bismayer Dekan des Fachbereichs Geowissenschaften CONTENTS Contents ....................................................................................................................1 Introduction...............................................................................................................4 Material.....................................................................................................................5 Torallola ................................................................................................................5 Temalac .................................................................................................................6 Additional material................................................................................................8 Methods ....................................................................................................................9 Taxonomy ...............................................................................................................10 Subclass Archaeogastropoda THIELE, 1925 ........................................................10 -
Channel Island Marine Molluscs
Channel Island Marine Molluscs An Illustrated Guide to the Seashells of Jersey, Guernsey, Alderney, Sark and Herm Paul Chambers Channel Island Marine Molluscs - An Illustrated Guide to the Seashells of Jersey, Guernsey, Alderney, Sark and Herm - First published in Great Britain in 2008 by Charonia Media www.charonia.co.uk [email protected] Dedicated to the memory of John Perry © Paul Chambers, 2008 The author asserts his moral right to be identified as the Author of this work in accordance with the Copyright, Designs and Patents Act, 1988. All rights reserved. No part of this book may be reproduced or transmitted in any form or by any means, electronic or mechanical including photocopying, recording or by any information storage and retrieval system, without permission from the Publisher. Typeset by the Author. Printed and bound by Lightning Source UK Ltd. ISBN 978 0 9560655 0 6 Contents Introduction 5 1 - The Channel Islands 7 Marine Ecology 8 2 - A Brief History of Channel Island Conchology 13 3 - Channel Island Seas Shells: Some Observations 19 Diversity 19 Channel Island Species 20 Chronological Observations 27 Channel Island First Records 33 Problematic Records 34 4 - Collection, Preservation and Identification Techniques 37 5 - A List of Species 41 Taxonomy 41 Scientific Name 42 Synonyms 42 Descriptions and Illustrations 43 Habitat 44 Distribution of Species 44 Reports of Individual Species 45 List of Abbreviations 47 PHYLUM MOLLUSCA 49 CLASS CAUDOFOVEATA 50 CLASS SOLENOGASTRES 50 ORDER NEOMENIAMORPHA 50 CLASS MONOPLACOPHORA -
The Gastropods from the Barremian of Serre De Bleyton (Drôme, SE France)
ZOBODAT - www.zobodat.at Zoologisch-Botanische Datenbank/Zoological-Botanical Database Digitale Literatur/Digital Literature Zeitschrift/Journal: Annalen des Naturhistorischen Museums in Wien Jahr/Year: 2013 Band/Volume: 115A Autor(en)/Author(s): Gründel Joachim, Kollmann Heinz Albert Artikel/Article: The gastropods from the Barremian of Serre de Bleyton (Drôme, SE France). 89-165 ©Naturhistorisches Museum Wien, download unter www.biologiezentrum.at Ann. Naturhist. Mus. Wien, Serie A 115 89–165 Wien, 15 Jan. 2013 The gastropods from the Barremian of Serre de Bleyton (Drôme, SE France) By Joachim GRÜNDEL1 & HEINZ A. KOLLMANN2 (With 10 plates and 1 figure) Manuscript submitted on April 7th 2011, the revised manuscript on February 8th 2012 Abstract A diverse gastropod fauna of 66 taxa is recorded from Barremian deposits of Serre de Bleyton, SW of the village of Arnayon (Department Drôme, France). Due to the unfavourable preservation of most specimens, only 18 previously described species could be identified, while the major- ity was named in open nomenclature. Newly described species are: Nummogaultina tricarinata, Pseudoliotina? parva, Brouzetdiscus? carinatus, Colpomphalus spiralocostatus, Costatompha- lus moosleitneri and Bleytonella circumlata. Brouzetdiscus, Costatomphalus and Bleytonella were identified as new genera. Barremian gastropod faunas of south France described in the ear- lier literature can be assigned to different facies. Accordingly, the great majority of taxa recorded from Serre de Bleyton inhabited shallow water environments of the outer platform. Only two taxa originate from inner platformlagoons. A single taxon of land snails has by-passed the shelf before it was deposited in basin floor fans of the Vocontian Trough. Keywords: Mollusca, Gastropoda, France, Drôme, Cretaceous, Barremian, New Taxa Zusammenfassung In den Ablagerungen des Barrêmiums von Serre de Bleyton, SW des Ortes Arnayon (Depart- ment Drôme, Frankreich) wurde eine diverse Gastropodenfauna von 66 Taxa nachgewiesen. -
Catalogue of the Primary Types of Marine Molluscan Taxa Described by Tommaso Allery Di Maria, Marquis of Monterosato, Deposited in the Museo Civico Di Zoologia, Roma
Zootaxa 4477 (1): 001–138 ISSN 1175-5326 (print edition) http://www.mapress.com/j/zt/ Monograph ZOOTAXA Copyright © 2018 Magnolia Press ISSN 1175-5334 (online edition) https://doi.org/10.11646/zootaxa.4477.1.1 http://zoobank.org/urn:lsid:zoobank.org:pub:5A6191BD-03BA-4374-B779-B3E73652BC7C ZOOTAXA 4477 Catalogue of the primary types of marine molluscan taxa described by Tommaso Allery Di Maria, Marquis of Monterosato, deposited in the Museo Civico di Zoologia, Roma MASSIMO APPOLLONI1, CARLO SMRIGLIO2, BRUNO AMATI3, LORENZO LUGLIÈ4, ITALO NOFRONI5, LIONELLO P. TRINGALI6, PAOLO MARIOTTINI2 & MARCO OLIVERIO4,7 1Museo Civico di Zoologia, Via Ulisse Aldrovandi 18, I–00197 Roma, Italy, E–mail: [email protected] 2Dipartimento di Scienze, Università “Roma Tre”, Viale Marconi, 446, I–00146 Roma, Italy. E-mail: [email protected]; [email protected] 3Largo Giuseppe Veratti, 37/D, I–00146 Roma, Italy. E-mail: [email protected] 4Dipartimento di Biologia e Biotecnologie ‘Charles Darwin’, Sapienza University of Rome, Viale dell’Università 32, I–00185 Roma, Italy. E-mail: [email protected] 5Via Benedetto Croce, 97, I–00142 Roma, Italy. E-mail: [email protected] 6Via E.L. Cerva 100, I–00143 Roma, Italy. E-mail: [email protected] 7Corresponding author. E-mail: [email protected] Magnolia Press Auckland, New Zealand Accepted by T. Duda: 13 Jun. 2018; published: 14 Sept. 2018 MASSIMO APPOLLONI, CARLO SMRIGLIO, BRUNO AMATI, LORENZO LUGLIÈ, ITALO NOFRONI, LIONELLO P. TRINGALI, PAOLO MARIOTTINI & MARCO OLIVERIO Catalogue of the primary types of marine molluscan taxa described by Tommaso Allery Di Maria, Mar- quis of Monterosato, deposited in the Museo Civico di Zoologia, Roma (Zootaxa 4477) 138 pp.; 30 cm. -
Conchig,L,Ie I
Conchig,l,ie I NOTIZIABIO MENSILE DELLA UNIONE MALACOLDGICA ITALIANA ADEFìENTE ALLA UNITAS MALACDLOGICA. EUFìDPAEA Anno VIII . n. 7'8 luglioagosto 1972 SOÀ{MARIO SABELLI B. - SulLì prcsenTa c distribuzione di Hanleya lunlefi in Nlcdjten-aneo, pztg. 97 GI]ISOTTI F. - Lc c<.rnchig)ic del Golfo di Gabès (partc secoflde) , 101 CA.PROTTI E. - Ospiri borcali e nlig.azioni nel Neoge' nc ÀIcditcraaflco. (fiota prclifttitldre) , 114 GHISOTTI F. - Rinvenimcnti malaeologici nel Mcdi- terranco " 119 Nellc pÀginc ccntrali il 1o inserto dclla GUIDA PRATICA ALLA FOR- IVIAZIONE DI UNr\ RACC0LTA DI CONCHIGLIE NIARINE di Gianni Spada. DIREnORE RESPONSABILE rag. ltalo Utlo COMITAIO Dl REDAZIONE G. Barsottli.l. Di Geroniho; D.A. Franchinli C.L Garavellii F. Ghisottlt G.C. Melone; N. Melon6; G. Spada DIREZIONE E REDAZIONE Milano, Vis De srnc.lis, 73 . Tel. 849.?6.5? -TRIBUNALE AUTORIZZAZIONE DI MILANO N.98 DEL 28 MABZO 1967 §PEOIzIONE IN AABONAMEN'TO POS'TALE . GRUPPO IV GUIDA PRATICA ALLA FORMAZIONE DI UNA MCCOLTA I DI CONCHIOLIE MARINE Siamo lieti cli offrire, nelle pagine centrali di questo Notiziario, il primo inserto di questa Guida, richiesta e attesa da tempo da molti I nostri Soci. Il Dr. GIANNI SPADA si è accinto a questo lavoro con l'intento di fornire, in particolare ai neofiti, un bagaglio di nozioni, essenzialmente pratiche e scientifiche basilari, che permettano loro di introdursi agevolmente nel settore conchigliologico: la Guida non sarà il solito manuale compiÌato a tavolino, bensÌ qualcosa di vivo tratto dall'esperienza dell'Autore. Gli inserti saranno pubblicati sempre nelle pagine centrali del Notiziario e avranno numerazione progressiva proprìa: sarà così pos- sibile, al termine del lavoro, raccoglierli in un unico volume. -
74-01 (Aartsen Et Al.) 11-01-2007 12:39 Page 1
74-01 (Aartsen et al.) 11-01-2007 12:39 Page 1 Pyramidellidae (Mollusca, Gastropoda, Heterobranchia) collected during the Dutch CANCAP and MAURITANIA expeditions in the south-eastern part of the North Atlantic Ocean (part 2) CANCAP-project. Contributions, no.123 J.J. van Aartsen, E. Gittenberger & J. Goud Aartsen, J.J. van, E. Gittenberger & J. Goud. Pyramidellidae (Mollusca, Gastropoda, Heterobranchia) collected during the Dutch CANCAP and MAURITANIA expeditions in the south-eastern part of the North Atlantic Ocean (part 2). Zool. Med. Leiden 74 (1), 15.ix.2000: 1-50, figs 1-65.— ISSN 0024-0672. J.J. van Aartsen, Admiraal Helfrichlaan 33, NL 6952 GB Dieren, The Netherlands. E. Gittenberger, Department of Evertebrata, National Museum of Natural History, P.O. Box 9517, NL 2300 RA Leiden, The Netherlands (e-mail: [email protected]). J. Goud, Department of Evertebrata, National Museum of Natural History, P.O. Box 9517, NL 2300 RA Leiden, The Netherlands (e-mail: [email protected]). Key words: Pyramidellidae; new species; North Atlantic Ocean. The species of the Pyramidellidae collected during several expeditions in the south-eastern part of the North Atlantic Ocean are listed, with locality data, depth ranges, and notes on nomenclature, system- atics and distribution. The samples classified with the genera Eulimella (partly), Anisocycla, Syrnola, Chrysallida and Odostomella are dealt with in this paper. In total 70 species are reported from the research area, 24 of which are described as new to science. A lectotype of Obeliscus gracillima Smith, 1872 (= Eulimella variabilis de Folin, 1870) and neotypes of Chrysallida multicostata (Jeffreys, 1884) and Jaminia obtusa Brown, 1827, are designated.