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Taxonomic Study of the Pagurus Forbesii "Complex" (Crustacea
Taxonomic study of the Pagurus forbesii "complex" (Crustacea: Decapoda: Paguridae). Description of Pagurus pseudosculptimanus sp. nov. from Alborán Sea (Southern Spain, Western Mediterranean Sea). GARCÍA MUÑOZ J.E.1, CUESTA J.A.2 & GARCÍA RASO J.E.1* 1 Dept. Biología Animal, Fac. Ciencias, Univ. Málaga, Campus de Teatinos s/n, 29071 Málaga, Spain. 2 Inst. Ciencias Marinas de Andalucía (CSIC), Av. República Saharaui, 2, 11519 Puerto Real, Cádiz, Spain. * Corresponding author - e-mail address: [email protected] ABSTRACT The study of hermit crabs from Alboran Sea has allowed recognition of two different morphological forms under what had been understood as Pagurus forbesii. Based on morphological observations with various species of Pagurus, and molecular studies, a new species is defined and described as P. pseudosculptimanus. An overview on species of Pagurus from the eastern Atlantic and Mediterranean Sea is provided. Key words: Pagurus, new species, Mediterranean, eastern Atlantic. 1 Introduction More than 170 species from around the world are currently assigned to the genus Pagurus Fabricius, 1775 (Lemaitre and Cruz Castaño 2004; Mantelatto et al. 2009; McLaughlin 2003, McLaughlin et al. 2010). This genus is complex because of there is high morphological variability and similarity among some species, and has been divided in groups (e.g. Lemaitre and Cruz Castaño 2004 for eastern Pacific species; Ingle, 1985, for European species) with difficulty (Ayón-Parente and Hendrickx 2012). This difficulty has lead to taxonomic problems, although molecular techniques have been recently used to elucidate some species (Mantelatto et al. 2009; Da Silva et al. 2011). Thirteen species are present in eastern Atlantic (European and the adjacent African waters) (Ingle 1993; Udekem d'Acoz 1999; Froglia, 2010, MarBEL Data System - Türkay 2012, García Raso et al., in press) but only nine of these (the first ones mentioned below) have been cited in the Mediterranean Sea, all of them are present in the study area (Alboran Sea, southern Spain). -
Anchialine Cave Biology in the Era of Speleogenomics Jorge L
International Journal of Speleology 45 (2) 149-170 Tampa, FL (USA) May 2016 Available online at scholarcommons.usf.edu/ijs International Journal of Speleology Off icial Journal of Union Internationale de Spéléologie Life in the Underworld: Anchialine cave biology in the era of speleogenomics Jorge L. Pérez-Moreno1*, Thomas M. Iliffe2, and Heather D. Bracken-Grissom1 1Department of Biological Sciences, Florida International University, Biscayne Bay Campus, North Miami FL 33181, USA 2Department of Marine Biology, Texas A&M University at Galveston, Galveston, TX 77553, USA Abstract: Anchialine caves contain haline bodies of water with underground connections to the ocean and limited exposure to open air. Despite being found on islands and peninsular coastlines around the world, the isolation of anchialine systems has facilitated the evolution of high levels of endemism among their inhabitants. The unique characteristics of anchialine caves and of their predominantly crustacean biodiversity nominate them as particularly interesting study subjects for evolutionary biology. However, there is presently a distinct scarcity of modern molecular methods being employed in the study of anchialine cave ecosystems. The use of current and emerging molecular techniques, e.g., next-generation sequencing (NGS), bestows an exceptional opportunity to answer a variety of long-standing questions pertaining to the realms of speciation, biogeography, population genetics, and evolution, as well as the emergence of extraordinary morphological and physiological adaptations to these unique environments. The integration of NGS methodologies with traditional taxonomic and ecological methods will help elucidate the unique characteristics and evolutionary history of anchialine cave fauna, and thus the significance of their conservation in face of current and future anthropogenic threats. -
A New Classification of the Chirostyloidea (Crustacea: Decapoda: Anomura)
Zootaxa 2687: 56–64 (2010) ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ Article ZOOTAXA Copyright © 2010 · Magnolia Press ISSN 1175-5334 (online edition) A new classification of the Chirostyloidea (Crustacea: Decapoda: Anomura) KAREEN E. SCHNABEL1 & SHANE T. AHYONG2 1National Institute of Water and Atmospheric Research, Private Bag 14901, Kilbirnie, Wellington, New Zealand. E-mail: [email protected] 2Australian Museum, 6 College Street, Sydney, NSW 2010 Australia. E-mail: [email protected] Abstract The high level classification of the Chirostyloidea Ortmann, 1892, is reviewed. Eumunididae Milne-Edwards & Bouvier, 1900, is resurrected for two genera formerly placed in the Chirostylidae Ortmann, 1892, Eumunida Smith, 1883, and Pseudomunida Haig, 1979, based on shared characteristics such as the dorsal carapace striation, presence of supraocular spines of the rostrum, dentition of the mandible, presence of an epipod and an annulated exopod flagellum of maxilliped 1. Three families are now included in the Chirostyloidea: Chirostylidae, Eumunididae and Kiwaidae. Diagnoses are provided for each family as well as a key to the families. The fossil record of the Chirostyloidea is discussed, with putative records of Eumunida in the fossil record referred to the galatheid genus Sadayoshia Baba, 1969. Key words: Galatheoidea, Chirostylidae, Eumunididae, Kiwaidae, adult somatic morphology, larval morphology, fossil record Introduction Recent focus on the phylogeny of Anomura has generated significant molecular phylogenetic information that has challenged the traditional understanding of the marine squat lobsters and porcelain crabs, the Galatheoidea, which comprised the Chirostylidae Ortmann, 1892, Galatheidae Samouelle, 1819, Porcellanidae Haworth, 1825, and Kiwaidae Macpherson, Jones & Segonzac, 2005 (e.g., Ahyong et al. -
Decapoda: Paguridae) from French Polynesia, with Comments on Carcinization in the Anomura
Zootaxa 3722 (2): 283–300 ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ Article ZOOTAXA Copyright © 2013 Magnolia Press ISSN 1175-5334 (online edition) http://dx.doi.org/10.11646/zootaxa.3722.2.9 http://zoobank.org/urn:lsid:zoobank.org:pub:9D347B8C-0BCE-47A7-99DF-DBA9A38A4F44 A remarkable new crab-like hermit crab (Decapoda: Paguridae) from French Polynesia, with comments on carcinization in the Anomura ARTHUR ANKER1,2 & GUSTAV PAULAY1 1Florida Museum of Natural History, University of Florida, Gainesville, FL, 32611-7800, U.S.A. 2Department of Biological Sciences, National University of Singapore, Lower Kent Ridge Road, 119260, Singapore Abstract Patagurus rex gen. et sp. nov., a deep-water pagurid hermit crab, is described and illustrated based on a single specimen dredged from 400 m off Moorea, Society Islands, French Polynesia. Patagurus is characterized by a subtriangular, vault- ed, calcified carapace, with large, wing-like lateral processes, and is closely related to two other atypical pagurid genera, Porcellanopagurus Filhol, 1885 and Solitariopagurus Türkay, 1986. The broad, fully calcified carapace, calcified bran- chiostegites, as well as broad and rigidly articulated thoracic sternites make this remarkable animal one of the most crab- like hermit crabs. Patagurus rex carries small bivalve shells to protect its greatly reduced pleon. Carcinization pathways among asymmetrical hermit crabs and other anomurans are briefly reviewed and discussed. Key words: Decapoda, Paguridae, hermit crab, deep-water, carcinization, Porcellanopagurus, Solitariopagurus, Indo- West Pacific Introduction Carcinization, or development of a crab-like body plan, is a term describing an important evolutionary tendency within the large crustacean order Decapoda. The term “carcinization” was coined by Borradaile (1916) with reference to crab-like modifications in the hermit crab genus Porcellanopagurus Filhol, 1885 (Paguridae). -
1 Crustaceans in Cold Seep Ecosystems: Fossil Record, Geographic Distribution, Taxonomic Composition, 2 and Biology 3 4 Adiël A
1 Crustaceans in cold seep ecosystems: fossil record, geographic distribution, taxonomic composition, 2 and biology 3 4 Adiël A. Klompmaker1, Torrey Nyborg2, Jamie Brezina3 & Yusuke Ando4 5 6 1Department of Integrative Biology & Museum of Paleontology, University of California, Berkeley, 1005 7 Valley Life Sciences Building #3140, Berkeley, CA 94720, USA. Email: [email protected] 8 9 2Department of Earth and Biological Sciences, Loma Linda University, Loma Linda, CA 92354, USA. 10 Email: [email protected] 11 12 3South Dakota School of Mines and Technology, Rapid City, SD 57701, USA. Email: 13 [email protected] 14 15 4Mizunami Fossil Museum, 1-47, Yamanouchi, Akeyo-cho, Mizunami, Gifu, 509-6132, Japan. 16 Email: [email protected] 17 18 This preprint has been submitted for publication in the Topics in Geobiology volume “Ancient Methane 19 Seeps and Cognate Communities”. Specimen figures are excluded in this preprint because permissions 20 were only received for the peer-reviewed publication. 21 22 Introduction 23 24 Crustaceans are abundant inhabitants of today’s cold seep environments (Chevaldonné and Olu 1996; 25 Martin and Haney 2005; Karanovic and Brandão 2015), and could play an important role in structuring 26 seep ecosystems. Cold seeps fluids provide an additional source of energy for various sulfide- and 27 hydrocarbon-harvesting bacteria, often in symbiosis with invertebrates, attracting a variety of other 28 organisms including crustaceans (e.g., Levin 2005; Vanreusel et al. 2009; Vrijenhoek 2013). The 29 percentage of crustaceans of all macrofaunal specimens is highly variable locally in modern seeps, from 30 0–>50% (Dando et al. 1991; Levin et al. -
Juvenile Sphaeroma Quadridentatum Invading Female-Oœspring Groups of Sphaeroma Terebrans
Journal of Natural History, 2000, 34, 737–745 Juvenile Sphaeroma quadridentatum invading female-oŒspring groups of Sphaeroma terebrans MARTIN THIEL1 Smithsonian Marine Station, 5612 Old Dixie Highway, Fort Pierce, Fla 34946, USA (Accepted: 6 April 1999) Female isopods Sphaeroma terebrans Bate 1866 are known to host their oŒspring in family burrows in aerial roots of the red mangrove Rhizophora mangle. During a study on the reproductive biology of S. terebrans in the Indian River Lagoon, Florida, USA, juvenile S. quadridentatum were found in family burrows of S. terebrans. Between September 1997 and August 1998, each month at least one female S. terebrans was found with juvenile S. quadridentatum in its burrow. The percentage of S. terebrans family burrows that contained juvenile S. quadridenta- tum was high during fall 1997, decreased during the winter, and reached high values again in late spring/early summer 1998, corresponding with the percentage of parental female S. terebrans (i.e. hosting their own juveniles). Most juvenile S. quadridentatum were found with parental female S. terebrans, but a few were also found with reproductive females that were not hosting their own oŒspring. Non-reproductive S. terebrans (single males, subadults, non-reproductivefemales) were never found with S. quadridentatum in their burrows. The numbers of S. quadridentatum found in burrows of S. terebrans ranged between one and eight individuals per burrow. No signi® cant correlation between the number of juvenile S. quadridentatum and the numbers of juvenile S. terebrans in a family burrow existed. However, burrows with high numbers of juvenile S. quadridentatum often contained relatively few juvenile S. -
Pagurus Ikedai (Crustacea: Anomura: Paguridae), a New Hermit Crab Species of the Bernhardus Group from Japanese Waters
Zootaxa 819:1-12(2005) ISSN 1175-5326 (print edition) E3 www.mapress.com/2ootaxa/ 71^1^'T'AYA (''STO^ Copyright © 2005 Magnolia Press ISSN 1175-5334 (online edition) Pagurus ikedai (Crustacea: Anomura: Paguridae), a new hermit crab species of the bernhardus group from Japanese waters RAFAEL LEMAITRE' & HAJIME WATABE^ 'Smithsonian Institution. Department of Zoology. National Museum of Natural History. MRC163. P.O. BOX 37012. Washington. DC2001S-70I2. U. S. A. [email protected]) ^ Marine Ecosystems Dynamics Benthos, Ocean Research Institute. University of Tokyo. Minamidai 1-15-1. Nakano. Tokyo, 164-8639. Japan. ([email protected]) Abstract A new species of Paguridae, Pagurus ikedai, from the Tokyo Submarine Canyon and vicinity, Japan, is described and fully illustrated, including infoimation on live coloration. This new species is distinguished primarily by size and shape of the chelipeds, in particular the massiveness of the left, and the presence in some males of a papilla or very short sexual tube on the right coxa of the fifth pereopod and a papilla on the coxa of the left. It is assigned to the bernhardus group which now includes eight species. Key words: Hermit crab, Pagiuidae, Pagurus, new species, bernhardus group, Tokyo Submarine Canyon,Japan Introduction As part of long-term benthic faunal and ecological studies begun in the early 1960's (e.g., Ikeda 1998, Watabe 1999), numerous specimens of a distinct hermit crab species of the family Paguridae were collected in the Tokyo Submarine Canyon and vicinity. During the earlier years of these studies, some specimens were sent to the late Sadayoshi Miyake (1908-1998, see Baba 1998) who communicated to Hitoshi Ikeda (Hayama Shiosai Museum) that they represented an undescribed genus and species. -
How to Become a Crab: Phenotypic Constraints on a Recurring Body Plan
Preprints (www.preprints.org) | NOT PEER-REVIEWED | Posted: 25 December 2020 doi:10.20944/preprints202012.0664.v1 How to become a crab: Phenotypic constraints on a recurring body plan Joanna M. Wolfe1*, Javier Luque1,2,3, Heather D. Bracken-Grissom4 1 Museum of Comparative Zoology and Department of Organismic & Evolutionary Biology, Harvard University, 26 Oxford St, Cambridge, MA 02138, USA 2 Smithsonian Tropical Research Institute, Balboa–Ancon, 0843–03092, Panama, Panama 3 Department of Earth and Planetary Sciences, Yale University, New Haven, CT 06520-8109, USA 4 Institute of Environment and Department of Biological Sciences, Florida International University, Biscayne Bay Campus, 3000 NE 151 Street, North Miami, FL 33181, USA * E-mail: [email protected] Summary: A fundamental question in biology is whether phenotypes can be predicted by ecological or genomic rules. For over 140 years, convergent evolution of the crab-like body plan (with a wide and flattened shape, and a bent abdomen) at least five times in decapod crustaceans has been known as ‘carcinization’. The repeated loss of this body plan has been identified as ‘decarcinization’. We offer phylogenetic strategies to include poorly known groups, and direct evidence from fossils, that will resolve the pattern of crab evolution and the degree of phenotypic variation within crabs. Proposed ecological advantages of the crab body are summarized into a hypothesis of phenotypic integration suggesting correlated evolution of the carapace shape and abdomen. Our premise provides fertile ground for future studies of the genomic and developmental basis, and the predictability, of the crab-like body form. Keywords: Crustacea, Anomura, Brachyura, Carcinization, Phylogeny, Convergent evolution, Morphological integration 1 © 2020 by the author(s). -
Isopoda: Flabellifera: Sphaeromatidae)
A TAXONOMIC REVISION OF THE EUROPEAN, MEDITERRANEAN AND NW. AFRICAN SPECIES GENERALLY PLACED IN SPHAEROMA BOSC, 1802 (ISOPODA: FLABELLIFERA: SPHAEROMATIDAE) by B.J.M. JACOBS Jacobs, B.J.M.: A taxonomic revision of the European, Mediterranean and NW. African species generally placed in Sphaeroma Bosc, 1802 (Isopoda: Flabellifera: Sphaeromatidae). Zool. Verh. Leiden 238, 12-vi-1987: 1-71, figs. 1-21, tab. 1. — ISSN 0024-1652. Key words: Isopoda; Flabellifera; Sphaeromatidae; Sphaeroma; Lekanesphaera; Ex- osphaeroma; Verhoeff; keys; species; new species. The European, Mediterranean and NW. African species usually assigned to the genus Sphaeroma are revised. The genus Sphaeroma as understood so far has been divided into two genera: Sphaeroma s.s. and Lekanesphaera Verhoeff, 1943. Keys to the three species of Sphaeroma and the thirteen species of Lekanesphaera are given. Two new species are described viz., L. glabella (from Madeira) and L. terceirae (from Terceira, Azores) and the synonymy of known species is provided. B.J.M. Jacobs, c/o Rijksmuseum van Natuurlijke Historie, P.O. Box 9517, 2300 RA Leiden. The Netherlands. CONTENTS Introduction 4 Systematics 5 Methods and Terminology 7 Key to the genera Sphaeroma, Exosphaeroma and Lekanesphaera 10 Sphaeroma Bosc, 1802 11 Key to the European, Mediterranean and NW. African species of Sphaeroma Bosc, 1802 13 Sphaeroma serratum (Fabricius, 1787) 13 Sphaeroma venustissimum Monod, 1931 20 Sphaeroma walkeri Stebbing, 1905 22 Lekanesphaera Verhoeff, 1943 24 Key to the European, Meditteranean and NW. -
Paradella Dianae – Around the World in 20 Years
Southeastern Regional Taxonomic Center South Carolina Department of Natural Resources Paradella dianae – around the world in 20 years Kingdom Animalia Phylum Arthropoda Class Malacostraca Order Isopoda Family Sphaeromatidae Paradella dianae is a species of crustacean that was accidentally introduced to the southeast coast of the U.S. in the early 1980s. It was first discovered by SCDNR divers who were studying the jetties that were being built at Murrells Inlet at that time. As they made repeated dives on the jetty stones below the low tide level, to carefully and systematically quantify the flora and fauna, divers noticed hundreds of small creatures clinging tightly to their neoprene wetsuits when they climbed from the water back onto the dive boat. It took a lot of effort to remove them, even under the heavy spray of freshwater from a garden hose back at the dock. It turns out that these pesky animals were isopods that are native to the Pacific coasts of North and Central America. They were probably carried to our coast on the outside surfaces of oceangoing ships, and they have hitchhiked around the world among the fouling growth that builds up over time on these ship’s hulls. Although they aren’t particularly conspicuous to the casual observer, isopods are an important part of many coastal communities, as this is especially true for those that live on hard surfaces that are continuously submerged in high salinity seawater for a reasonably long period of time (e.g. floating docks, pilings and jetties). You can learn more about this interesting group of crustaceans by going to the archived ‘Featured Species’ at http://www.dnr.sc.gov/marine/sertc/Isopod%20Crustaceans.pdf Description and Biology: Paradella dianae is a dorso-ventrally flattened, yellowish and brown colored sphaeromatid isopod. -
Two New Nonindigenous Isopods in the Southwestern Atlantic
Journal of Sea Research 138 (2018) 1–7 Contents lists available at ScienceDirect Journal of Sea Research journal homepage: www.elsevier.com/locate/seares Two new nonindigenous isopods in the Southwestern Atlantic: Simultaneous T assessment of population status and shipping transport vector ⁎ Carlos Rumbolda,b, , Marco Melonic, Brenda Dotib,d,e, Nancy Correaf, Mariano Albanob,g, Francisco Sylvesterb,h, Sandra Obenata a Instituto de Investigaciones Marinas y Costeras (IIMyC), Universidad Nacional de Mar del Plata, Mar del Plata, Argentina b Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina c IEGEBA (CONICET-UBA), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad de Buenos Aires, Argentina d Instituto de Biodiversidad y Biología Experimental y Aplicada (IBBEA, CONICET-UBA), Argentina e Departamento de Biodiversidad y Biología Experimental, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires (UBA), Ciudad de Buenos Aires, Argentina f Servicio de Hidrografía Naval, Ministerio de Defensa de la República Argentina, Argentina g Centro Austral de Investigaciones Científicas (CADIC-CONICET), Ushuaia, Argentina h Instituto para el Estudio de la Biodiversidad de Invertebrados (IEBI), Facultad de Ciencias Naturales, Universidad Nacional de Salta, Salta, Argentina ARTICLE INFO ABSTRACT Keywords: The Southwestern Atlantic is often perceived as remote region, yet it is not immune to biological invasions. Dynamene edwardsi Patchy information on historical community composition hinders our ability to identify introductions to coastal Paracerceis sculpta ecosystems in this region. Hull fouling is an under-managed shipping vector that likely continues to transport Population biology large numbers of marine species worldwide. The port of Mar del Plata is a comparatively well-studied shipping Hull fouling and commercial hub that may serve as an observatory to monitor new introductions to the Argentine coast. -
Historic Naturalis Classica, Viii Historic Naturalis Classica
HISTORIC NATURALIS CLASSICA, VIII HISTORIC NATURALIS CLASSICA EDIDERUNT J. CRAMER ET H.K.SWANN TOMUS vm BIBUOGRAPHY OF THE LARVAE OF DECAPOD CRUSTACEA AND LARVAE OF DECAPOD CRUSTACEA BY ROBERT GURNEY WITH 122 FIGURES IN THE TEXT REPRINTED 1960 BY H. R. ENGELMANN (J. CRAMER) AND WHELDON & WESLEY, LTD. WEINHEIM/BERGSTR. CODICOTE/HERTS. BIBLIOGRAPHY OF THE LARVAE OF DECAPOD CRUSTACEA AND LARVAE OF DECAPOD CRUSTACEA BY ROBERT GURNEY WITH 122 FIGURES IN THE TEXT REPRINTED 1960 BY H. R. ENGELMANN (J. CRAMER) AND WHELDON & WESLEY, LTD. WEINHEIM/BERGSTR. CODICOTE/HERTS. COPYRIGHT 1939 & 1942 BY THfi RAY SOCIETY IN LONDON AUTHORIZED REPRINT COPYRIGHT OF THE SERIES BY J. CRAMER PUBLISHER IN WEINHEIM PRINTED IN GERMANY I9«0 i X\ T • THE RAY SOCIETY INSTITUTED MDCCCXLIV This volume (No. 125 of the Series) is issued to the Svhscribers to the RAY SOCIETY JOT the Year 1937. LONDON MCMXXXIX BIBLIOGKAPHY OF THE LARVAE OF DECAPOD CRUSTACEA BY ROBERT GURNEY, M.A., D.Sc, F.L.S. LONDON PRINTED FOR THE RAT SOCIETY SOLD BT BERNARD QUARITCH, LTD. U, GBAFTOK STBKET, NBW BOND STEBBT, LONDON, "W. 1 1939 PRINTED BY ADLABD AND SON, LIMITED 2 1 BLOOJlSBUBY WAY, LONDON, W.C. I Madt and printed in Great Britain. CONTENTS PAOE PBBFACE . " V BiBUOGRAPHY CLASSIFIED LIST . 64 Macrura Natantia 64 Penaeidea 64 Caridea 70 Macrura Reptantia 84 Nephropsidea 84 Eryonidea 88 Scyllaridea 88 Stenopidea 91 Thalassinidea 92 Anomura ; 95 Galatheidea . 95 Paguridea 97 Hippidea 100 Dromiacea 101 Brachyura 103 Gymnopleura 103 Brachygnatha 103 Oxyrhyncha 113 Oxystomata . 116 INDEX TO GENERA 120 PREFACE IT has been my intention to publish a monograph of Decapod larvae which should contain a bibliography, a part dealing with a number of general questions relating to the post-embryonic development of Decapoda and Euphausiacea, and a series of sections describing the larvae of all the groups, so far as they are known.