Madagascar and Indian Océan Sipuncula
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Lesson 4 Plant and Animal Classification and Identification
LESSON 4 PLANT AND ANIMAL CLASSIFICATION AND IDENTIFICATION Aim Become familiar with the basic ways in which plants and animals can be classified and identified CLASSIFICATION OF ORGANISMS Living organisms that are relevant to the ecotourism tour guide are generally divided into two main groups of things: ANIMALS........and..........PLANTS The boundaries between these two groups are not always clear, and there is an increasing tendency to recognise as many as five or six kingdoms. However, for our purposes we will stick with the two kingdoms. Each of these main groups is divided up into a number of smaller groups called 'PHYLA' (or Phylum). Each phylum has certain broad characteristics which distinguish it from other groups of plants or animals. For example, all flowering plants are in the phyla 'Anthophyta' (if a plant has a flower it is a member of the phyla 'Anthophyta'). All animals which have a backbone are members of the phyla 'Vertebrate' (i.e. Vertebrates). Getting to know these major groups of plants and animals is the first step in learning the characteristics of, and learning to identify living things. You should try to gain an understanding of the order of the phyla - from the simplest to the most complex - in both the animal and plant kingdoms. Gaining this type of perspective will provide you with a framework which you can slot plants or animals into when trying to identify them in nature. Understanding the phyla is only the first step, however. Phyla are further divided into groups called 'classes'. Classes are divided and divided again and so on. -
Platyhelminthes, Nemertea, and "Aschelminthes" - A
BIOLOGICAL SCIENCE FUNDAMENTALS AND SYSTEMATICS – Vol. III - Platyhelminthes, Nemertea, and "Aschelminthes" - A. Schmidt-Rhaesa PLATYHELMINTHES, NEMERTEA, AND “ASCHELMINTHES” A. Schmidt-Rhaesa University of Bielefeld, Germany Keywords: Platyhelminthes, Nemertea, Gnathifera, Gnathostomulida, Micrognathozoa, Rotifera, Acanthocephala, Cycliophora, Nemathelminthes, Gastrotricha, Nematoda, Nematomorpha, Priapulida, Kinorhyncha, Loricifera Contents 1. Introduction 2. General Morphology 3. Platyhelminthes, the Flatworms 4. Nemertea (Nemertini), the Ribbon Worms 5. “Aschelminthes” 5.1. Gnathifera 5.1.1. Gnathostomulida 5.1.2. Micrognathozoa (Limnognathia maerski) 5.1.3. Rotifera 5.1.4. Acanthocephala 5.1.5. Cycliophora (Symbion pandora) 5.2. Nemathelminthes 5.2.1. Gastrotricha 5.2.2. Nematoda, the Roundworms 5.2.3. Nematomorpha, the Horsehair Worms 5.2.4. Priapulida 5.2.5. Kinorhyncha 5.2.6. Loricifera Acknowledgements Glossary Bibliography Biographical Sketch Summary UNESCO – EOLSS This chapter provides information on several basal bilaterian groups: flatworms, nemerteans, Gnathifera,SAMPLE and Nemathelminthes. CHAPTERS These include species-rich taxa such as Nematoda and Platyhelminthes, and as taxa with few or even only one species, such as Micrognathozoa (Limnognathia maerski) and Cycliophora (Symbion pandora). All Acanthocephala and subgroups of Platyhelminthes and Nematoda, are parasites that often exhibit complex life cycles. Most of the taxa described are marine, but some have also invaded freshwater or the terrestrial environment. “Aschelminthes” are not a natural group, instead, two taxa have been recognized that were earlier summarized under this name. Gnathifera include taxa with a conspicuous jaw apparatus such as Gnathostomulida, Micrognathozoa, and Rotifera. Although they do not possess a jaw apparatus, Acanthocephala also belong to Gnathifera due to their epidermal structure. ©Encyclopedia of Life Support Systems (EOLSS) BIOLOGICAL SCIENCE FUNDAMENTALS AND SYSTEMATICS – Vol. -
Systematics , Zoogeography , Andecologyofthepriapu
SYSTEMATICS, ZOOGEOGRAPHY, AND ECOLOGY OF THE PRIAPULIDA by J. VAN DER LAND (Rijksmuseum van Natuurlijke Historie, Leiden) With 89 text-figures and five plates CONTENTS Ι Introduction 4 1.1 Plan 4 1.2 Material and methods 5 1.3 Acknowledgements 6 2 Systematics 8 2.1 Historical introduction 8 2.2 Phylum Priapulida 9 2.2.1 Diagnosis 10 2.2.2 Classification 10 2.2.3 Definition of terms 12 2.2.4 Basic adaptive features 13 2.2.5 General features 13 2.2.6 Systematic notes 2 5 2.3 Key to the taxa 20 2.4 Survey of the taxa 29 Priapulidae 2 9 Priapulopsis 30 Priapulus 51 Acanthopriapulus 60 Halicryptus 02 Tubiluchidae 7° Tubiluchus 73 3 Zoogeography and ecology 84 3.1 Distribution 84 3.1.1 Faunistics 90 3.1.2 Expeditions 93 3.2 Ecology 96 3.2.1 Substratum 96 3.2.2 Depth 97 3.2.3 Temperature 97 3.24 Salinity 98 3.2.5 Oxygen 98 3.2.6 Food 99 3.2.7 Predators 100 3.2.8 Communities 102 3.3 Theoretical zoogeography 102 3.3.1 Bipolarity 102 3.3.2 Relict distribution 103 3.3.3 Concluding remarks 104 References 105 4 ZOOLOGISCHE VERHANDELINGEN 112 (1970) 1 INTRODUCTION The phylum Priapulida is only a very small group of marine worms but, since these animals apparently represent the last remnants of a once un- doubtedly much more important animal type, they are certainly of great scientific interest. Therefore, it is to be regretted that a comprehensive review of our present knowledge of the group does not exist, which does not only cause the faulty way in which the Priapulida are treated usually in textbooks and works on phylogeny, but also hampers further studies. -
Number of Living Species in Australia and the World
Numbers of Living Species in Australia and the World 2nd edition Arthur D. Chapman Australian Biodiversity Information Services australia’s nature Toowoomba, Australia there is more still to be discovered… Report for the Australian Biological Resources Study Canberra, Australia September 2009 CONTENTS Foreword 1 Insecta (insects) 23 Plants 43 Viruses 59 Arachnida Magnoliophyta (flowering plants) 43 Protoctista (mainly Introduction 2 (spiders, scorpions, etc) 26 Gymnosperms (Coniferophyta, Protozoa—others included Executive Summary 6 Pycnogonida (sea spiders) 28 Cycadophyta, Gnetophyta under fungi, algae, Myriapoda and Ginkgophyta) 45 Chromista, etc) 60 Detailed discussion by Group 12 (millipedes, centipedes) 29 Ferns and Allies 46 Chordates 13 Acknowledgements 63 Crustacea (crabs, lobsters, etc) 31 Bryophyta Mammalia (mammals) 13 Onychophora (velvet worms) 32 (mosses, liverworts, hornworts) 47 References 66 Aves (birds) 14 Hexapoda (proturans, springtails) 33 Plant Algae (including green Reptilia (reptiles) 15 Mollusca (molluscs, shellfish) 34 algae, red algae, glaucophytes) 49 Amphibia (frogs, etc) 16 Annelida (segmented worms) 35 Fungi 51 Pisces (fishes including Nematoda Fungi (excluding taxa Chondrichthyes and (nematodes, roundworms) 36 treated under Chromista Osteichthyes) 17 and Protoctista) 51 Acanthocephala Agnatha (hagfish, (thorny-headed worms) 37 Lichen-forming fungi 53 lampreys, slime eels) 18 Platyhelminthes (flat worms) 38 Others 54 Cephalochordata (lancelets) 19 Cnidaria (jellyfish, Prokaryota (Bacteria Tunicata or Urochordata sea anenomes, corals) 39 [Monera] of previous report) 54 (sea squirts, doliolids, salps) 20 Porifera (sponges) 40 Cyanophyta (Cyanobacteria) 55 Invertebrates 21 Other Invertebrates 41 Chromista (including some Hemichordata (hemichordates) 21 species previously included Echinodermata (starfish, under either algae or fungi) 56 sea cucumbers, etc) 22 FOREWORD In Australia and around the world, biodiversity is under huge Harnessing core science and knowledge bases, like and growing pressure. -
Multi-Gene Analyses of the Phylogenetic Relationships Among the Mollusca, Annelida, and Arthropoda Donald J
Zoological Studies 47(3): 338-351 (2008) Multi-Gene Analyses of the Phylogenetic Relationships among the Mollusca, Annelida, and Arthropoda Donald J. Colgan1,*, Patricia A. Hutchings2, and Emma Beacham1 1Evolutionary Biology Unit, The Australian Museum, 6 College St. Sydney, NSW 2010, Australia 2Marine Invertebrates, The Australian Museum, 6 College St., Sydney, NSW 2010, Australia (Accepted October 29, 2007) Donald J. Colgan, Patricia A. Hutchings, and Emma Beacham (2008) Multi-gene analyses of the phylogenetic relationships among the Mollusca, Annelida, and Arthropoda. Zoological Studies 47(3): 338-351. The current understanding of metazoan relationships is largely based on analyses of 18S ribosomal RNA ('18S rRNA'). In this paper, DNA sequence data from 2 segments of 28S rRNA, cytochrome c oxidase subunit I, histone H3, and U2 small nuclear (sn)RNA were compiled and used to test phylogenetic relationships among the Mollusca, Annelida, and Arthropoda. The 18S rRNA data were included in the compilations for comparison. The analyses were especially directed at testing the implication of the Eutrochozoan hypothesis that the Annelida and Mollusca are more closely related than are the Annelida and Arthropoda and at determining whether, in contrast to analyses using only 18S rRNA, the addition of data from other genes would reveal these phyla to be monophyletic. New data and available sequences were compiled for up to 49 molluscs, 33 annelids, 22 arthropods, and 27 taxa from 15 other metazoan phyla. The Porifera, Ctenophora, and Cnidaria were used as the outgroup. The Annelida, Mollusca, Entoprocta, Phoronida, Nemertea, Brachiopoda, and Sipuncula (i.e., all studied Lophotrochozoa except for the Bryozoa) formed a monophyletic clade with maximum likelihood bootstrap support of 81% and a Bayesian posterior probability of 0.66 when all data were analyzed. -
Cryptic Speciation Among Meiofaunal Flatworms Henry J
Winthrop University Digital Commons @ Winthrop University Graduate Theses The Graduate School 8-2018 Cryptic Speciation Among Meiofaunal Flatworms Henry J. Horacek Winthrop University, [email protected] Follow this and additional works at: https://digitalcommons.winthrop.edu/graduatetheses Part of the Biology Commons Recommended Citation Horacek, Henry J., "Cryptic Speciation Among Meiofaunal Flatworms" (2018). Graduate Theses. 94. https://digitalcommons.winthrop.edu/graduatetheses/94 This Thesis is brought to you for free and open access by the The Graduate School at Digital Commons @ Winthrop University. It has been accepted for inclusion in Graduate Theses by an authorized administrator of Digital Commons @ Winthrop University. For more information, please contact [email protected]. CRYPTIC SPECIATION AMONG MEIOFAUNAL FLATWORMS A thesis Presented to the Faculty Of the College of Arts and Sciences In Partial Fulfillment Of the Requirements for the Degree Of Master of Science In Biology Winthrop University August, 2018 By Henry Joseph Horacek August 2018 To the Dean of the Graduate School: We are submitting a thesis written by Henry Joseph Horacek entitled Cryptic Speciation among Meiofaunal Flatworms. We recommend acceptance in partial fulfillment of the requirements for the degree of Master of Science in Biology __________________________ Dr. Julian Smith, Thesis Advisor __________________________ Dr. Cynthia Tant, Committee Member _________________________ Dr. Dwight Dimaculangan, Committee Member ___________________________ Dr. Adrienne McCormick, Dean of the College of Arts & Sciences __________________________ Jack E. DeRochi, Dean, Graduate School Table of Contents List of Figures p. iii List of Tables p. iv Abstract p. 1 Acknowledgements p. 2 Introduction p. 3 Materials and Methods p. 18 Results p. 28 Discussion p. -
Free-Living Benthic Marine Invertebrates in Chile
FREE-LIVING BENTHIC MARINE INVERTEBRATES INRevista CHILE Chilena de Historia Natural51 81: 51-67, 2008 Free-living benthic marine invertebrates in Chile Invertebrados bentónicos marinos de vida libre en Chile MATTHEW R. LEE1, JUAN CARLOS CASTILLA1*, MIRIAM FERNÁNDEZ1, MARCELA CLARKE2, CATHERINE GONZÁLEZ1, CONSUELO HERMOSILLA1,3, LUIS PRADO1, NICOLAS ROZBACZYLO1 & CLAUDIO VALDOVINOS4 1 Center for Advanced Studies in Ecology and Biodiversity (FONDAP) and Estación Costera de Investigaciones Marinas, Departamento de Ecología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile 2 Facultad de Recursos del Mar, Universidad de Antofagasta, Antofagasta, Chile 3 Instituto de Investigaciones Marinas, CSIC, Vigo, España 4 Center of Environmental Sciences EULA-Chile, University of Concepcion, Concepción, Chile; Patagonian Ecosystems Research Center (CIEP), Coyhaique, Chile; *e-mail for correspondence: [email protected] ABSTRACT A comprehensive literature review was conducted to determine the species richness of all the possible taxa of free-living benthic marine invertebrates in Chile. In addition, the extent of endemism to the Pacific Islands and deep-sea, the number of non-indigenous species, and the contribution that the Chilean benthic marine invertebrate fauna makes to the world benthic marine invertebrate fauna was examined. A total of 4,553 species were found. The most speciose taxa were the Crustacea, Mollusca and Polychaeta. Species richness data was not available for a number of taxa, despite evidence that these taxa are present in the Chilean benthos. The Chilean marine invertebrate benthic fauna constitutes 2.47 % of the world marine invertebrate benthic fauna. There are 599 species endemic to the Pacific Islands and 205 in the deep-sea. -
Fauna of Australia 4A Phylum Sipuncula
FAUNA of AUSTRALIA Volume 4A POLYCHAETES & ALLIES The Southern Synthesis 5. PHYLUM SIPUNCULA STANLEY J. EDMONDS (Deceased 16 July 1995) © Commonwealth of Australia 2000. All material CC-BY unless otherwise stated. At night, Eunice Aphroditois emerges from its burrow to feed. Photo by Roger Steene DEFINITION AND GENERAL DESCRIPTION The Sipuncula is a group of soft-bodied, unsegmented, coelomate, worm-like marine invertebrates (Fig. 5.1; Pls 12.1–12.4). The body consists of a muscular trunk and an anteriorly placed, more slender introvert (Fig. 5.2), which bears the mouth at the anterior extremity of an introvert and a long, recurved, spirally wound alimentary canal lies within the spacious body cavity or coelom. The anus lies dorsally, usually on the anterior surface of the trunk near the base of the introvert. Tentacles either surround, or are associated with the mouth. Chaetae or bristles are absent. Two nephridia are present, occasionally only one. The nervous system, although unsegmented, is annelidan-like, consisting of a long ventral nerve cord and an anteriorly placed brain. The sexes are separate, fertilisation is external and cleavage of the zygote is spiral. The larva is a free-swimming trochophore. They are known commonly as peanut worms. AB D 40 mm 10 mm 5 mm C E 5 mm 5 mm Figure 5.1 External appearance of Australian sipunculans. A, SIPUNCULUS ROBUSTUS (Sipunculidae); B, GOLFINGIA VULGARIS HERDMANI (Golfingiidae); C, THEMISTE VARIOSPINOSA (Themistidae); D, PHASCOLOSOMA ANNULATUM (Phascolosomatidae); E, ASPIDOSIPHON LAEVIS (Aspidosiphonidae). (A, B, D, from Edmonds 1982; C, E, from Edmonds 1980) 2 Sipunculans live in burrows, tubes and protected places. -
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. -
Musculature in Sipunculan Worms: Ontogeny and Ancestral States
EVOLUTION & DEVELOPMENT 11:1, 97–108 (2009) DOI: 10.1111/j.1525-142X.2008.00306.x Musculature in sipunculan worms: ontogeny and ancestral states Anja Schulzeà and Mary E. Rice Smithsonian Marine Station, 701 Seaway Drive, Fort Pierce, FL 34949, USA ÃAuthor for correspondence (email: [email protected]). Present address: Department of Marine Biology, Texas A & M University at Galveston, 5007 Avenue U, Galveston, TX 77551, USA. SUMMARY Molecular phylogenetics suggests that the introvert retractor muscles as adults, go through devel- Sipuncula fall into the Annelida, although they are mor- opmental stages with four retractor muscles that are phologically very distinct and lack segmentation. To under- eventually reduced to a lower number in the adult. The stand the evolutionary transformations from the annelid to the circular and sometimes the longitudinal body wall musculature sipunculan body plan, it is important to reconstruct the are split into bands that later transform into a smooth sheath. ancestral states within the respective clades at all life history Our ancestral state reconstructions suggest with nearly 100% stages. Here we reconstruct the ancestral states for the head/ probability that the ancestral sipunculan had four introvert introvert retractor muscles and the body wall musculature in retractor muscles, longitudinal body wall musculature in bands the Sipuncula using Bayesian statistics. In addition, we and circular body wall musculature arranged as a smooth describe the ontogenetic transformations of the two muscle sheath. Species with crawling larvae have more strongly systems in four sipunculan species with different de- developed body wall musculature than those with swimming velopmental modes, using F-actin staining with fluo- larvae. -
Lists of Names of Prokaryotic Candidatus Taxa
NOTIFICATION LIST: CANDIDATUS LIST NO. 1 Oren et al., Int. J. Syst. Evol. Microbiol. DOI 10.1099/ijsem.0.003789 Lists of names of prokaryotic Candidatus taxa Aharon Oren1,*, George M. Garrity2,3, Charles T. Parker3, Maria Chuvochina4 and Martha E. Trujillo5 Abstract We here present annotated lists of names of Candidatus taxa of prokaryotes with ranks between subspecies and class, pro- posed between the mid- 1990s, when the provisional status of Candidatus taxa was first established, and the end of 2018. Where necessary, corrected names are proposed that comply with the current provisions of the International Code of Nomenclature of Prokaryotes and its Orthography appendix. These lists, as well as updated lists of newly published names of Candidatus taxa with additions and corrections to the current lists to be published periodically in the International Journal of Systematic and Evo- lutionary Microbiology, may serve as the basis for the valid publication of the Candidatus names if and when the current propos- als to expand the type material for naming of prokaryotes to also include gene sequences of yet-uncultivated taxa is accepted by the International Committee on Systematics of Prokaryotes. Introduction of the category called Candidatus was first pro- morphology, basis of assignment as Candidatus, habitat, posed by Murray and Schleifer in 1994 [1]. The provisional metabolism and more. However, no such lists have yet been status Candidatus was intended for putative taxa of any rank published in the journal. that could not be described in sufficient details to warrant Currently, the nomenclature of Candidatus taxa is not covered establishment of a novel taxon, usually because of the absence by the rules of the Prokaryotic Code. -
Echinodermata
Echinodermata Gr : spine skin 6500 spp all marine except for few estuarine, none freshwater 1) pentamerous radial symmetry (adults) *larvae bilateral symmetrical 2) spines 3) endoskeleton mesodermally-derived ossicles calcareous plates up to 95% CaCO3, up to 15% MgCO3, salts, trace metals, small amount of organic materials 4) water vascular system (WVS) 5) tube feet (podia) Unicellular (acellular) Multicellular (metazoa) protozoan protists Poorly defined Diploblastic tissue layers Triploblastic Cnidaria Porifera Ctenophora Placozoa Uncertain Acoelomate Coelomate Pseudocoelomate Priapulida Rotifera Chaetognatha Platyhelminthes Nematoda Gastrotricha Rhynchocoela (Nemertea) Kinorhyncha Entoprocta Mesozoa Acanthocephala Loricifera Gnathostomulida Nematomorpha Protostomes Uncertain (misfits) Deuterostomes Annelida Mollusca Echinodermata Brachiopoda Hemichordata Arthropoda Phoronida Onychophora Bryozoa Chordata Pentastomida Pogonophora Sipuncula Echiura 1 Chapter 14: Echinodermata Classes: 1) Asteroidea (Gr: characterized by star-like) 1600 spp 2) Ophiuroidea (Gr: snake-tail-like) 2100 spp 3) Echinoidea (Gr: hedgehog-form) 1000 spp 4) Holothuroidea (Gr: sea cucumber-like) 1200 spp 5) Crinoidea (Gr: lily-like) stalked – 100 spp nonstalked, motile comatulid (feather stars)- 600 spp Asteroidea sea stars/starfish arms not sharply marked off from central star shaped disc spines fixed pedicellariae ambulacral groove open tube feet with suckers on oral side anus/madreporite aboral 2 Figure 22.01 Pincushion star, Culcita navaeguineae, preys on coral