Anaspidesidae, a New Family for Syncarid Crustaceans Formerly Placed in Anaspididae Thomson, 1893
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Biochemical Divergence Between Cavernicolous and Marine
The position of crustaceans within Arthropoda - Evidence from nine molecular loci and morphology GONZALO GIRIBET', STEFAN RICHTER2, GREGORY D. EDGECOMBE3 & WARD C. WHEELER4 Department of Organismic and Evolutionary- Biology, Museum of Comparative Zoology; Harvard University, Cambridge, Massachusetts, U.S.A. ' Friedrich-Schiller-UniversitdtJena, Instituifiir Spezielte Zoologie und Evolutionsbiologie, Jena, Germany 3Australian Museum, Sydney, NSW, Australia Division of Invertebrate Zoology, American Museum of Natural History, New York, U.S.A. ABSTRACT The monophyly of Crustacea, relationships of crustaceans to other arthropods, and internal phylogeny of Crustacea are appraised via parsimony analysis in a total evidence frame work. Data include sequences from three nuclear ribosomal genes, four nuclear coding genes, and two mitochondrial genes, together with 352 characters from external morphol ogy, internal anatomy, development, and mitochondrial gene order. Subjecting the com bined data set to 20 different parameter sets for variable gap and transversion costs, crusta ceans group with hexapods in Tetraconata across nearly all explored parameter space, and are members of a monophyletic Mandibulata across much of the parameter space. Crustacea is non-monophyletic at low indel costs, but monophyly is favored at higher indel costs, at which morphology exerts a greater influence. The most stable higher-level crusta cean groupings are Malacostraca, Branchiopoda, Branchiura + Pentastomida, and an ostracod-cirripede group. For combined data, the Thoracopoda and Maxillopoda concepts are unsupported, and Entomostraca is only retrieved under parameter sets of low congruence. Most of the current disagreement over deep divisions in Arthropoda (e.g., Mandibulata versus Paradoxopoda or Cormogonida versus Chelicerata) can be viewed as uncertainty regarding the position of the root in the arthropod cladogram rather than as fundamental topological disagreement as supported in earlier studies (e.g., Schizoramia versus Mandibulata or Atelocerata versus Tetraconata). -
Syncarid Crustaceans from the Montceau Lagersta¨Tte
[Palaeontology, Vol. 49, Part 3, 2006, pp. 647–672] SYNCARID CRUSTACEANS FROM THE MONTCEAU LAGERSTA¨ TTE (UPPER CARBONIFEROUS; FRANCE) by VINCENT PERRIER*, JEAN VANNIER*, PATRICK R. RACHEBOEUF , SYLVAIN CHARBONNIER*, DOMINIQUE CHABARDà and DANIEL SOTTYà *Universite´ Claude Bernard Lyon 1, UMR 5125 PEPS ‘Pale´oenvironnements et Pale´obiosphe`re’, Campus scientifique de la Doua, Baˆtiment Ge´ode, 2 rue Raphae¨l Dubois, 69622 Villeurbanne, France; e-mails: [email protected]; [email protected] Universite´ de Bretagne Occidentale, UMR 6538 ‘Domaines Oce´aniques’ – Pale´ontologie, UFR Sciences et Techniques, 6 avenue Le Gorgeu, CS 93837, F-29238 Brest cedex 3, France; e-mail: [email protected] àMuse´e d’Histoire Naturelle d’Autun, 14 rue St-Antoine, 71400 Autun, France Typescript received 28 September 2004; accepted in revised form 17 May 2005 Abstract: Key aspects of the morphology, autecology, sys- suggest a relatively low level of locomotory activity. The tematics and taphonomy of the crustacean syncarids from field of vision may have been large and panoramic (stalked the Montceau Lagersta¨tte (Upper Carboniferous, Stephanian eyes). Rows of pores on 12 trunk segments are interpreted B; France) are presented. Palaeocaris secretanae is the most as possible sensory organs used for current detection. abundant faunal element of the Montceau biota and shows Females were brooding eggs (clusters of eggs preserved striking morphological similarities with Palaeocaris typus along anteroventral trunk). Microprobe analysis indicates from the Mazon Creek Lagersta¨tte (Westphalian D; Illinois, that siderite is the major component of the nodules. Four USA). Palaeocaris secretanae was a shrimp-like animal with events played a key-role in the three-dimensional preserva- a short head (no head shield), large mandibles, 14 trunk tion of syncarids: (1) rapid burial, (2) minimal decomposi- segments (the first one being reduced) and a fan-like caudal tion, (3) phosphatic mineralization shortly after the termination. -
Hickman's Pygmy Mountain Shrimp (Allanaspides Hickmani) Is a Small, Shrimp-Like Crustacean Belonging to the Family Anaspididae
THREATENED SPECIES LISTING STATEMENT Hickman’s Pygmy Mountain Shrimp Allanaspides hickmani Swain Wilson and Ong 1971 Status Commonwealth Endangered Species Protection Act 1992 . .Not listed Tasmanian Threatened Species Protection Act 1995 . .Rare Description Hickman's pygmy mountain shrimp (Allanaspides hickmani) is a small, shrimp-like crustacean belonging to the family Anaspididae. This family contains three genera, Allanaspides, Anaspides and Paranaspides, all of which are restricted to Tasmania. Allanaspides species can be readily identified by the presence of a conspicuous transparent window on its back (dorsal window) and stalked eyes. The two species of Allanaspides (A. hickmani and A. helonomus) can be separated by the size, shape and colour of this window. Hickman's pygmy 6 mm mountain shrimp has a rectangular shaped dorsal window which covers most of the width of the dorsal surface Illustration: Karen Richards behind the head; the tissue below the dorsal window contains a bright red pigment. A. helonomus has a clear, oval-shaped dorsal window covering approximately half the width of the dorsal surface behind the head (Swain et al. 1970; Swain et al. 1971). Hickman's pygmy mountain shrimp has its eyes situated terminally on eyestalks and adult males attain a body length of 11.7 mm. A. helonomus has its eyes positioned laterally on the end of the eyestalks and is the slightly larger species, attaining a body length of 15 mm. A more detailed description of Hickman's pygmy mountain shrimp is provided by Swain et al. (1971). The life history of Hickman's pygmy mountain shrimp is poorly known and can only be inferred from what little information is available for A. -
Does Biogeography Have a Future in a Globalized World with Globalized Faunas?
Contributions to Zoology, 77 (2) 127-133 (2008) Does biogeography have a future in a globalized world with globalized faunas? Frederick R. Schram Burke Museum, University of Washington, Seattle, P.O. Box 1567, Langley, WA 98260, USA, [email protected] ton.edu Key words: Anaspidacea, Bathynellacea, globalization, historical biogeography, vicariance Abstract in the Great Lakes and it is said that a new invader species is identified every eight months. The toll on The study of biogeography was once a pillar of evolution the fisheries of the Great Lakes alone has been dev- science. Both Darwin and especially Wallace found great in- astating. Another example is San Francisco Bay, spiration from the consideration of animal distributions. where some 234 invasive species have been recorded However, what is to happen to this discipline in a time of global trade, mass movement of people and goods, and the up to the present day, i.e., something like 90% of the resulting globalization of the planet’s biota? Can we still aquatic population of the bay. Finally, the infamous hope to delve into the fine points of past geography as it af- Chinese mitten crab, Eriocheir sinensis, is conduct- fected animal and plant evolution? Maybe we can, but only ing an on-going assault on Chesapeake Bay, and the with careful study of life forms that suffer minimal affects effect on the native blue crab populations is already – at present – from globalization, viz., marginal faunas of being measured. In the United States, invading ar- quite inaccessible environments. Two examples taken from syncarid crustaceans illustrate this point. -
Crustaceans Topics in Biodiversity
Topics in Biodiversity The Encyclopedia of Life is an unprecedented effort to gather scientific knowledge about all life on earth- multimedia, information, facts, and more. Learn more at eol.org. Crustaceans Authors: Simone Nunes Brandão, Zoologisches Museum Hamburg Jen Hammock, National Museum of Natural History, Smithsonian Institution Frank Ferrari, National Museum of Natural History, Smithsonian Institution Photo credit: Blue Crab (Callinectes sapidus) by Jeremy Thorpe, Flickr: EOL Images. CC BY-NC-SA Defining the crustacean The Latin root, crustaceus, "having a crust or shell," really doesn’t entirely narrow it down to crustaceans. They belong to the phylum Arthropoda, as do insects, arachnids, and many other groups; all arthropods have hard exoskeletons or shells, segmented bodies, and jointed limbs. Crustaceans are usually distinguishable from the other arthropods in several important ways, chiefly: Biramous appendages. Most crustaceans have appendages or limbs that are split into two, usually segmented, branches. Both branches originate on the same proximal segment. Larvae. Early in development, most crustaceans go through a series of larval stages, the first being the nauplius larva, in which only a few limbs are present, near the front on the body; crustaceans add their more posterior limbs as they grow and develop further. The nauplius larva is unique to Crustacea. Eyes. The early larval stages of crustaceans have a single, simple, median eye composed of three similar, closely opposed parts. This larval eye, or “naupliar eye,” often disappears later in development, but on some crustaceans (e.g., the branchiopod Triops) it is retained even after the adult compound eyes have developed. In all copepod crustaceans, this larval eye is retained throughout their development as the 1 only eye, although the three similar parts may separate and each become associated with their own cuticular lens. -
A Review of Natural Values Within the 2013 Extension to the Tasmanian Wilderness World Heritage Area
A review of natural values within the 2013 extension to the Tasmanian Wilderness World Heritage Area Nature Conservation Report 2017/6 Department of Primary Industries, Parks, Water and Environment Hobart A review of natural values within the 2013 extension to the Tasmanian Wilderness World Heritage Area Jayne Balmer, Jason Bradbury, Karen Richards, Tim Rudman, Micah Visoiu, Shannon Troy and Naomi Lawrence. Department of Primary Industries, Parks, Water and Environment Nature Conservation Report 2017/6, September 2017 This report was prepared under the direction of the Department of Primary Industries, Parks, Water and Environment (World Heritage Program). Australian Government funds were contributed to the project through the World Heritage Area program. The views and opinions expressed in this report are those of the authors and do not necessarily reflect those of the Tasmanian or Australian Governments. ISSN 1441-0680 Copyright 2017 Crown in right of State of Tasmania Apart from fair dealing for the purposes of private study, research, criticism or review, as permitted under the Copyright act, no part may be reproduced by any means without permission from the Department of Primary Industries, Parks, Water and Environment. Published by Natural Values Conservation Branch Department of Primary Industries, Parks, Water and Environment GPO Box 44 Hobart, Tasmania, 7001 Front Cover Photograph of Eucalyptus regnans tall forest in the Styx Valley: Rob Blakers Cite as: Balmer, J., Bradbury, J., Richards, K., Rudman, T., Visoiu, M., Troy, S. and Lawrence, N. 2017. A review of natural values within the 2013 extension to the Tasmanian Wilderness World Heritage Area. Nature Conservation Report 2017/6, Department of Primary Industries, Parks, Water and Environment, Hobart. -
Visual Adaptations in Crustaceans: Chromatic, Developmental, and Temporal Aspects
FAU Institutional Repository http://purl.fcla.edu/fau/fauir This paper was submitted by the faculty of FAU’s Harbor Branch Oceanographic Institute. Notice: ©2003 Springer‐Verlag. This manuscript is an author version with the final publication available at http://www.springerlink.com and may be cited as: Marshall, N. J., Cronin, T. W., & Frank, T. M. (2003). Visual Adaptations in Crustaceans: Chromatic, Developmental, and Temporal Aspects. In S. P. Collin & N. J. Marshall (Eds.), Sensory Processing in Aquatic Environments. (pp. 343‐372). Berlin: Springer‐Verlag. doi: 10.1007/978‐0‐387‐22628‐6_18 18 Visual Adaptations in Crustaceans: Chromatic, Developmental, and Temporal Aspects N. Justin Marshall, Thomas W. Cronin, and Tamara M. Frank Abstract Crustaceans possess a huge variety of body plans and inhabit most regions of Earth, specializing in the aquatic realm. Their diversity of form and living space has resulted in equally diverse eye designs. This chapter reviews the latest state of knowledge in crustacean vision concentrating on three areas: spectral sensitivities, ontogenetic development of spectral sen sitivity, and the temporal properties of photoreceptors from different environments. Visual ecology is a binding element of the chapter and within this framework the astonishing variety of stomatopod (mantis shrimp) spectral sensitivities and the environmental pressures molding them are examined in some detail. The quantity and spectral content of light changes dra matically with depth and water type and, as might be expected, many adaptations in crustacean photoreceptor design are related to this governing environmental factor. Spectral and temporal tuning may be more influenced by bioluminescence in the deep ocean, and the spectral quality of light at dawn and dusk is probably a critical feature in the visual worlds of many shallow-water crustaceans. -
Northernmost Discovery of Bathynellacea (Syncarida: Bathynellidae) with Description of a New Species of Pacificabathynella from Alaska (USA) A.I
JOURNAL OF NATURAL HISTORY, 2016 VOL. 50, NOS. 9–10, 583–602 http://dx.doi.org/10.1080/00222933.2015.1083621 Northernmost discovery of Bathynellacea (Syncarida: Bathynellidae) with description of a new species of Pacificabathynella from Alaska (USA) A.I. Camachoa, R.L. Newellb, Z. Cretec, B.A. Dordad, A. Casadod and I. Reyd aDpto. Biodiversidad y Biología Evolutiva, Museo Nacional de Ciencias Naturales (CSIC), Madrid, Spain; bEcoServices So., Kennewick, WA, USA; cCrete Biological Services, Helena, Montana, USA; dDpto. de Colecciones. Col. de Tejidos y ADN, Museo Nacional de Ciencias Naturales (CSIC), Madrid, Spain ABSTRACT ARTICLE HISTORY A new species of the genus Pacificabathynella Schminke and Received 17 April 2015 Noodt, 1988 is described from groundwaters of Alaska (USA). Accepted 12 August 2015 This is the first record of Bathynellacea Chappuis, 1915 from the Online 23 September 2015 far north of America. Pacificabathynella has hitherto been known KEYWORDS only from the states of California (one species) and Montana (three Syncarida; Bathynellacea; species). Pacificabathynella and Paradoxibathynella Serban, 2000 Alaska State; USA; are the only genera that show sexual dimorphism in thoracopod subterranean aquatic fauna; VI. Pacificabathynella yupik sp. nov. has several unique features morphological taxonomy; within the genus: antenna eight-segmented; antennule only Pacificabathynella sp. nov.; slightly longer than the antenna; the setal formula of the maxilla mitochondrial DNA (7/3/7/5); without seta on the endopod of the male thoracopod (cytochrome c oxidase I) VIII; five spines on the endopod of the uropod and the endopod as long as the sympod. The new species further shows slight differ- ences in the antennula, pars molaris of the mandible, in thoraco- pod I–VII and in thoracopod VIII of males and females with the other species of the genus. -
Fossil Calibrations for the Arthropod Tree of Life
bioRxiv preprint doi: https://doi.org/10.1101/044859; this version posted June 10, 2016. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY 4.0 International license. FOSSIL CALIBRATIONS FOR THE ARTHROPOD TREE OF LIFE AUTHORS Joanna M. Wolfe1*, Allison C. Daley2,3, David A. Legg3, Gregory D. Edgecombe4 1 Department of Earth, Atmospheric & Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA 2 Department of Zoology, University of Oxford, South Parks Road, Oxford OX1 3PS, UK 3 Oxford University Museum of Natural History, Parks Road, Oxford OX1 3PZ, UK 4 Department of Earth Sciences, The Natural History Museum, Cromwell Road, London SW7 5BD, UK *Corresponding author: [email protected] ABSTRACT Fossil age data and molecular sequences are increasingly combined to establish a timescale for the Tree of Life. Arthropods, as the most species-rich and morphologically disparate animal phylum, have received substantial attention, particularly with regard to questions such as the timing of habitat shifts (e.g. terrestrialisation), genome evolution (e.g. gene family duplication and functional evolution), origins of novel characters and behaviours (e.g. wings and flight, venom, silk), biogeography, rate of diversification (e.g. Cambrian explosion, insect coevolution with angiosperms, evolution of crab body plans), and the evolution of arthropod microbiomes. We present herein a series of rigorously vetted calibration fossils for arthropod evolutionary history, taking into account recently published guidelines for best practice in fossil calibration. -
Does Biogeography Have a Future in a Globalized World with Globalized Faunas?
Contributions to Zoology, 77 (2) 127-133 (2008) Does biogeography have a future in a globalized world with globalized faunas? Frederick R. Schram Burke Museum, University of Washington, Seattle, P.O. Box 1567, Langley, WA 98260, USA, [email protected] ton.edu Key words: Anaspidacea, Bathynellacea, globalization, historical biogeography, vicariance Abstract in the Great Lakes and it is said that a new invader species is identified every eight months. The toll on The study of biogeography was once a pillar of evolution the fisheries of the Great Lakes alone has been dev- science. Both Darwin and especially Wallace found great in- astating. Another example is San Francisco Bay, spiration from the consideration of animal distributions. where some 234 invasive species have been recorded However, what is to happen to this discipline in a time of global trade, mass movement of people and goods, and the up to the present day, i.e., something like 90% of the resulting globalization of the planet’s biota? Can we still aquatic population of the bay. Finally, the infamous hope to delve into the fine points of past geography as it af- Chinese mitten crab, Eriocheir sinensis, is conduct- fected animal and plant evolution? Maybe we can, but only ing an on-going assault on Chesapeake Bay, and the with careful study of life forms that suffer minimal affects effect on the native blue crab populations is already – at present – from globalization, viz., marginal faunas of being measured. In the United States, invading ar- quite inaccessible environments. Two examples taken from syncarid crustaceans illustrate this point. -
WILDLIFE in a CHANGING WORLD an Analysis of the 2008 IUCN Red List of Threatened Species™
WILDLIFE IN A CHANGING WORLD An analysis of the 2008 IUCN Red List of Threatened Species™ Edited by Jean-Christophe Vié, Craig Hilton-Taylor and Simon N. Stuart coberta.indd 1 07/07/2009 9:02:47 WILDLIFE IN A CHANGING WORLD An analysis of the 2008 IUCN Red List of Threatened Species™ first_pages.indd I 13/07/2009 11:27:01 first_pages.indd II 13/07/2009 11:27:07 WILDLIFE IN A CHANGING WORLD An analysis of the 2008 IUCN Red List of Threatened Species™ Edited by Jean-Christophe Vié, Craig Hilton-Taylor and Simon N. Stuart first_pages.indd III 13/07/2009 11:27:07 The designation of geographical entities in this book, and the presentation of the material, do not imply the expressions of any opinion whatsoever on the part of IUCN concerning the legal status of any country, territory, or area, or of its authorities, or concerning the delimitation of its frontiers or boundaries. The views expressed in this publication do not necessarily refl ect those of IUCN. This publication has been made possible in part by funding from the French Ministry of Foreign and European Affairs. Published by: IUCN, Gland, Switzerland Red List logo: © 2008 Copyright: © 2009 International Union for Conservation of Nature and Natural Resources Reproduction of this publication for educational or other non-commercial purposes is authorized without prior written permission from the copyright holder provided the source is fully acknowledged. Reproduction of this publication for resale or other commercial purposes is prohibited without prior written permission of the copyright holder. Citation: Vié, J.-C., Hilton-Taylor, C. -
Supplement to the 2002 Catalogue of Australian Crustacea: Malacostraca – Syncarida and Peracarida (Volume 19.2A): 2002–2004
Museum Victoria Science Reports 7: 1–15 (2005) ISSN 0 7311-7253 1 (Print) 0 7311-7260 4 (On-line) http://www.museum.vic.gov.au/sciencereports/ Supplement to the 2002 catalogue of Australian Crustacea: Malacostraca – Syncarida and Peracarida (Volume 19.2A): 2002–2004 GARY C. B. POORE Museum Victoria, GPO Box 666E, Melbourne, Victoria 3001, Australia ([email protected]) Abstract Poore, G.C.B. 2005. Supplement to the 2002 catalogue of Australian Malacostraca – Syncarida and Peracarida (Volume 19.2A): 2002–2004. Museum Victoria Science Reports 7: 1–15. Publications in the period 2002 to 2004 dealing with Australian Syncarida and Peracarida have been reviewed and new taxa, new combinations and significant papers listed. Eighty species in 28 genera and seven families of Isopoda, seven new species in four genera and two families of Tanaidacea, and one new species of Spelaeogriphacea have been newly reported for Australia in the 3-year period. No publications dealing with Syncarida, Mictacea or Thermosbaenacea were found. This report does not deal with Amphipoda, Mysidacea or Cumacea. These updates have been made to the Zoological Catalogue of Australia Volume 19.2A on the Australian Biological Resources Study website. Introduction New taxa are listed in bold. Parentheses enclose the names of taxa no longer recognised in the Australian fauna. Other taxa are listed only when they have been referred to in the Volume 19.2A of the Zoological Catalogue of Australia recent literature. Subheadings following each taxon are more (Poore, 2002) dealt with all taxa of malacostracan Crustacea or less are in the style used in the original catalogue.