DOCSLIB.ORG

A Classification of Living and Fossil Genera of Decapod Crustaceans

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
A Classification of Living and Fossil Genera of Decapod Crustaceans RAFFLES BULLETIN OF ZOOLOGY 2009 Supplement No. 21: 1–109 Date of Publication: 15 Sep.2009 © National University of Singapore A CLASSIFICATION OF LIVING AND FOSSIL GENERA OF DECAPOD CRUSTACEANS Sammy De Grave1, N. Dean Pentcheff 2, Shane T. Ahyong3, Tin-Yam Chan4, Keith A. Crandall5, Peter C. Dworschak6, Darryl L. Felder7, Rodney M. Feldmann8, Charles H. J. M. Fransen9, Laura Y. D. Goulding1, Rafael Lemaitre10, Martyn E. Y. Low11, Joel W. Martin2, Peter K. L. Ng11, Carrie E. Schweitzer12, S. H. Tan11, Dale Tshudy13, Regina Wetzer2 1Oxford University Museum of Natural History, Parks Road, Oxford, OX1 3PW, United Kingdom [email protected] [email protected] 2Natural History Museum of Los Angeles County, 900 Exposition Blvd., Los Angeles, CA 90007 United States of America [email protected] [email protected] [email protected] 3Marine Biodiversity and Biosecurity, NIWA, Private Bag 14901, Kilbirnie Wellington, New Zealand [email protected] 4Institute of Marine Biology, National Taiwan Ocean University, Keelung 20224, Taiwan, Republic of China [email protected] 5Department of Biology and Monte L. Bean Life Science Museum, Brigham Young University, Provo, UT 84602 United States of America [email protected] 6Dritte Zoologische Abteilung, Naturhistorisches Museum, Wien, Austria [email protected] 7Department of Biology, University of Louisiana, Lafayette, LA 70504 United States of America [email protected] 8Department of Geology, Kent State University, Kent, OH 44242 United States of America [email protected] 9Nationaal Natuurhistorisch Museum, P. O. Box 9517, 2300 RA Leiden, The Netherlands [email protected] 10Invertebrate Zoology, Smithsonian Institution, National Museum of Natural History, 10th and Constitution Avenue, Washington, DC 20560 United States of America [email protected] 11Department of Biological Sciences, National University of Singapore, Science Drive 4, Singapore 117543 [email protected] [email protected] [email protected] 12Department of Geology, Kent State University Stark Campus, 6000 Frank Ave. NW, North Canton, OH 44720 United States of America [email protected] 13Department of Geosciences, Edinboro University of Pennsylvania, Edinboro, PA 16444 United States of America [email protected] ABSTRACT. – We present an updated classification for the entire Crustacea Decapoda, listing all known families and genera organized by higher taxonomic groups and including estimates of the number of species in every genus. All taxonomic names are also linked to the verified literature in which they were described, the first compilation of its kind for the Decapoda. To arrive at this compilation, we began with the classification scheme provided by Martin & Davis (2001) for extant families, updated the higher classification and included the fossil taxa. The resultant framework was then populated with the currently valid genera and an estimate of species numbers within each genus. Our resulting classification, spanning both extant (living) and fossil taxa, is the first comprehensive estimate of taxonomic diversity within the entire Decapoda. The classification consists of 233 families of decapods containing 2,725 genera and an estimated 17,635 species (including both extant and fossil species). Of the families in our classification, 53 are exclusively fossil, 109 contain both fossil and extant species, and 71 are extant only. The current estimate for extant species is 14,756, whereas 2,979 species are known exclusively as fossils. KEY WORDS. – Decapoda, Crustacea, Arthropoda, taxonomy, classification. 1 De Grave et al.: Living and fossil genera of decapod crustaceans CONTENTS Preamble ........................................................................... 3 Infraorder Brachyura .................................................. 26 General notes .................................................................... 3 Section Dromiacea ................................................... 26 How many species of Decapoda are there? ...................... 5 Superfamily Dakoticancroidea ............................ 26 The higher classification of Decapoda .............................. 5 Superfamily Dromioidea ..................................... 26 The placement of fossil taxa ............................................. 8 Superfamily Eocarcinoidea .................................. 27 Acknowledgements ............................................................ 9 Superfamily Glaessneropsoidea .......................... 27 Literature cited ................................................................ 10 Superfamily Homolodromioidea ......................... 27 Order Decapoda .............................................................. 14 Superfamily Homoloidea .................................... 28 Suborder Dendrobranchiata .......................................... 14 Section Raninoida .................................................... 28 Superfamily Penaeoidea ...................................... 14 Section Cyclodorippoida .......................................... 29 Superfamily Sergestoidea .................................... 14 Section Eubrachyura ................................................ 29 Suborder Pleocyemata .................................................. 15 Subsection Heterotremata ...................................... 29 Infraorder Stenopodidea ............................................. 15 Superfamily Aethroidea ....................................... 29 Infraorder Caridea ...................................................... 15 Superfamily Bellioidea ........................................ 29 Superfamily Pleopteryxoidea .............................. 15 Superfamily Bythograeoidea ............................... 30 Superfamily Procaridoidea .................................. 15 Superfamily Calappoidea .................................... 30 Superfamily Galatheacaridoidea .......................... 15 Superfamily Cancroidea ...................................... 30 Superfamily Pasiphaeoidea .................................. 15 Superfamily Carpilioidea .................................... 30 Superfamily Oplophoroidea ................................ 15 Superfamily Cheiragonoidea ............................... 31 Superfamily Atyoidea .......................................... 15 Superfamily Componocancroidea ....................... 31 Superfamily Bresilioidea ..................................... 16 Superfamily Corystoidea ..................................... 31 Superfamily Nematocarcinoidea ......................... 16 Superfamily Dairoidea ........................................ 31 Superfamily Psalidopodoidea .............................. 16 Superfamily Dorippoidea .................................... 31 Superfamily Stylodactyloidea .............................. 16 Superfamily Eriphioidea ...................................... 31 Superfamily Campylonotoidea ............................ 16 Superfamily Gecarcinucoidea .............................. 32 Superfamily Palaemonoidea ................................ 16 Superfamily Goneplacoidea ................................ 32 Superfamily Alpheoidea ...................................... 18 Superfamily Hexapodoidea ................................. 33 Superfamily Processoidea .................................... 19 Superfamily Leucosioidea ................................... 33 Superfamily Pandaloidea ..................................... 19 Superfamily Majoidea ......................................... 34 Superfamily Physetocaridoidea ........................... 19 Superfamily Orithyioidea .................................... 37 Superfamily Crangonoidea .................................. 19 Superfamily Palicoidea ........................................ 37 Unplaced at superfamily level ............................. 19 Superfamily Parthenopoidea ................................ 37 Infraorder Astacidea ................................................... 20 Superfamily Pilumnoidea .................................... 37 Superfamily Palaeopalaemonoidea ...................... 20 Superfamily Portunoidea ..................................... 38 Superfamily Enoplometopoidea .......................... 20 Superfamily Potamoidea ...................................... 39 Superfamily Nephropoidea .................................. 20 Superfamily Pseudothelphusoidea ...................... 40 Superfamily Astacoidea ....................................... 20 Superfamily Pseudozioidea ................................. 41 Superfamily Parastacoidea .................................. 20 Superfamily Retroplumoidea .............................. 41 Infraorder Glypheidea ................................................ 20 Superfamily Trapezioidea .................................... 41 Superfamily Erymoidea ....................................... 20 Superfamily Trichodactyloidea ........................... 41 Superfamily Glypheoidea .................................... 21 Superfamily Xanthoidea ...................................... 42 Infraorder Axiidea ...................................................... 21 Subsection Thoracotremata .................................... 44 Infraorder Gebiidea .................................................... 22 Superfamily Cryptochiroidea .............................. 44 Infraorder Achelata ..................................................... 22 Superfamily Grapsoidea ...................................... 44 Infraorder Polychelida ...............................................
Load more

Recommended publications
  • 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.
    [Show full text]
  • Zootaxa,Crustacean Classification
    Zootaxa 1668: 313–325 (2007) ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ ZOOTAXA Copyright © 2007 · Magnolia Press ISSN 1175-5334 (online edition) Crustacean classification: on-going controversies and unresolved problems* GEOFF A. BOXSHALL Department of Zoology, The Natural History Museum, Cromwell Road, London SW7 5BD, United Kingdom E-mail: [email protected] *In: Zhang, Z.-Q. & Shear, W.A. (Eds) (2007) Linnaeus Tercentenary: Progress in Invertebrate Taxonomy. Zootaxa, 1668, 1–766. Table of contents Abstract . 313 Introduction . 313 Treatment of parasitic Crustacea . 315 Affinities of the Remipedia . 316 Validity of the Entomostraca . 318 Exopodites and epipodites . 319 Using of larval characters in estimating phylogenetic relationships . 320 Fossils and the crustacean stem lineage . 321 Acknowledgements . 322 References . 322 Abstract The journey from Linnaeus’s original treatment to modern crustacean systematics is briefly characterised. Progress in our understanding of phylogenetic relationships within the Crustacea is linked to continuing discoveries of new taxa, to advances in theory and to improvements in methodology. Six themes are discussed that serve to illustrate some of the major on-going controversies and unresolved problems in the field as well as to illustrate changes that have taken place since the time of Linnaeus. These themes are: 1. the treatment of parasitic Crustacea, 2. the affinities of the Remipedia, 3. the validity of the Entomostraca, 4. exopodites and epipodites, 5. using larval characters in estimating phylogenetic rela- tionships, and 6. fossils and the crustacean stem-lineage. It is concluded that the development of the stem lineage concept for the Crustacea has been dominated by consideration of taxa known only from larval or immature stages.
    [Show full text]
  • Part I. an Annotated Checklist of Extant Brachyuran Crabs of the World
    THE RAFFLES BULLETIN OF ZOOLOGY 2008 17: 1–286 Date of Publication: 31 Jan.2008 © National University of Singapore SYSTEMA BRACHYURORUM: PART I. AN ANNOTATED CHECKLIST OF EXTANT BRACHYURAN CRABS OF THE WORLD Peter K. L. Ng Raffles Museum of Biodiversity Research, Department of Biological Sciences, National University of Singapore, Kent Ridge, Singapore 119260, Republic of Singapore Email: [email protected] Danièle Guinot Muséum national d'Histoire naturelle, Département Milieux et peuplements aquatiques, 61 rue Buffon, 75005 Paris, France Email: [email protected] Peter J. F. Davie Queensland Museum, PO Box 3300, South Brisbane, Queensland, Australia Email: [email protected] ABSTRACT. – An annotated checklist of the extant brachyuran crabs of the world is presented for the first time. Over 10,500 names are treated including 6,793 valid species and subspecies (with 1,907 primary synonyms), 1,271 genera and subgenera (with 393 primary synonyms), 93 families and 38 superfamilies. Nomenclatural and taxonomic problems are reviewed in detail, and many resolved. Detailed notes and references are provided where necessary. The constitution of a large number of families and superfamilies is discussed in detail, with the positions of some taxa rearranged in an attempt to form a stable base for future taxonomic studies. This is the first time the nomenclature of any large group of decapod crustaceans has been examined in such detail. KEY WORDS. – Annotated checklist, crabs of the world, Brachyura, systematics, nomenclature. CONTENTS Preamble .................................................................................. 3 Family Cymonomidae .......................................... 32 Caveats and acknowledgements ............................................... 5 Family Phyllotymolinidae .................................... 32 Introduction .............................................................................. 6 Superfamily DROMIOIDEA ..................................... 33 The higher classification of the Brachyura ........................
    [Show full text]
  • The Genus Phlyctenodes Milne Edwards, 1862 (Crustacea: Decapoda: Xanthidae) in the Eocene of Europe
    350 RevistaBusulini Mexicana et al. de Ciencias Geológicas, v. 23, núm. 3, 2006, p. 350-360 The genus Phlyctenodes Milne Edwards, 1862 (Crustacea: Decapoda: Xanthidae) in the Eocene of Europe Alessandra Busulini1,*, Giuliano Tessier2, and Claudio Beschin3 1 c/o Museo di Storia Naturale, S. Croce 1730, I - 30125, Venezia, Italia. 2 via Barbarigo 10, I – 30126, Lido di Venezia, Italia. 3 Associazione Amici del Museo Zannato, Piazza Marconi 15, I - 36075, Montecchio Maggiore (Vicenza), Italia. * [email protected] ABSTRACT A systematic review of the crab genus Phlyctenodes Milne Edwards, 1862 is carried out. Based on carapace features, this taxon is placed in the subfamily Actaeinae, family Xanthidae MacLeay, 1838. Species attributed to this genus are known from Eocene reef environments in Europe. Preservation of crustacean remains in this kind of environment is very rare, and it could explain scarcity of specimens of this genus. For the fi rst time, pictures of types of this genus described during the XIX century and the fi rst decades of the XX century are presented. A study of recently collected specimens from the Eocene of Veneto (Italy) allows to clarify relationships between Phlyctenodes krenneri Lörenthey, 1898 and P. dalpiazi Fabiani, 1911. Presence of P. tuberculosus Milne Edwards, 1862 among the new material is documented. The other known species of this genus, P. hantkeni Lörenthey, 1898 is placed in Pseudophlyctenodes new genus on the basis of differences in morphological features. Key words: Crustacea, Decapoda, Phlyctenodes, systematic review, Eocene, Italy. RESUMEN Se presenta una revisión sistemática del género de cangrejo Phlyctenodes Milne Edwards, 1862. Con base en las características del caparazón, este taxon es ubicado en la subfamilia Actaeinae, familia Xanthidae MacLeay, 1838.
    [Show full text]
  • A New Classification of the Xanthoidea Sensu Lato
    Contributions to Zoology, 75 (1/2) 23-73 (2006) A new classifi cation of the Xanthoidea sensu lato (Crustacea: Decapoda: Brachyura) based on phylogenetic analysis and traditional systematics and evaluation of all fossil Xanthoidea sensu lato Hiroaki Karasawa1, Carrie E. Schweitzer2 1Mizunami Fossil Museum, Yamanouchi, Akeyo, Mizunami, Gifu 509-6132, Japan, e-mail: GHA06103@nifty. com; 2Department of Geology, Kent State University Stark Campus, 6000 Frank Ave. NW, North Canton, Ohio 44720, USA, e-mail: [email protected] Key words: Crustacea, Decapoda, Brachyura, Xanthoidea, Portunidae, systematics, phylogeny Abstract Family Pilumnidae ............................................................. 47 Family Pseudorhombilidae ............................................... 49 A phylogenetic analysis was conducted including representatives Family Trapeziidae ............................................................. 49 from all recognized extant and extinct families of the Xanthoidea Family Xanthidae ............................................................... 50 sensu lato, resulting in one new family, Hypothalassiidae. Four Superfamily Xanthoidea incertae sedis ............................... 50 xanthoid families are elevated to superfamily status, resulting in Superfamily Eriphioidea ......................................................... 51 Carpilioidea, Pilumnoidoidea, Eriphioidea, Progeryonoidea, and Family Platyxanthidae ....................................................... 52 Goneplacoidea, and numerous subfamilies are elevated
    [Show full text]
  • Genus Physefocaris, Gen. Nov. Carapace Greatly Inflated
    196 Zoologica: Neiv York Zoological Society I" XXV: 11 300 #00 £00 600 700 S00 900 /000 Text-figure 61. Variation in the average carapace length of catches of Para- pandalus richardi made at 100 fathom intervals. Family Physetocaridae, fam. nov. Rostrum present as a broad prolongation of the carapace. First pereio- pods simple. Second pereiopods chelate, with the carpus segmented. No exopods on the third maxillipeds or any of the pereiopods. Terminal joint of the second maxillipeds not applied as a strip to the end of the preceding joint. Mandible without an incisor process or palp. Genus Physefocaris, gen. nov. Carapace greatly inflated. Carpus of second pereiopods consisting of four segments; chela flattened with a very short, broad dactyl. Branchial formula as follows: VII VIII IX x XI XII XIII XIV Podobranchiae ep. ep. ep. ep. ep. ep. Arthrobranchiae Pleurobranchi ae 1 1 1 1 1 Physetocaris microphthalma, sp. nov. Text-figs. 62 and 63. Types: Holotype female (?) Cat. No. 30,523, Department of Tropical Research, New York Zoological Society; Net 798; July 15, 1930; 600 fathoms. 1940] Chace: Bathypelagic, Caridean Crustacea- 197 Physetocaris microphthalma. Holotype. X 6.00. One female (?) ; Net 983, 990, 997, 1003, 1014, 1015, 1016, 1102, 1108, 1115, 1121, 1131, 1137 (?), 1138 (?), 1144, 1149 or 1150; June 2 to August 8, 1931; 500 fathoms. Diagnosis: Carapace with two lateral carinae. Abdomen without any dorsal carinae or spines. Telson deeply sulcate dorsally and broadly truncate at the tip. Eyes very small and set on outside of stalks. Description: Integument extremely thin and fragile. Carapace markedly inflated dorsally and anteriorly to form a very broad, inflated rostrum.
    [Show full text]
  • Larval Morphology of the Spider Crab Leurocyclus Tuberculosus (Decapoda: Majoidea: Inachoididae)
    Nauplius 17(1): 49-58, 2009 49 Larval morphology of the spider crab Leurocyclus tuberculosus (Decapoda: Majoidea: Inachoididae) William Santana and Fernando Marques (WS) Museu de Zoologia, Universidade de São Paulo, Avenida Nazaré, 481, Ipiranga, 04263-000, São Paulo, SP, Brasil. E-mail: [email protected] (FM) Universidade de São Paulo, Departamento de Zoologia, Instituto de Biociências, Caixa Postal 11461, 05588-090, São Paulo, SP, Brasil. E-mail: [email protected] Abstract Within the recently resurrected family Inachoididae is Leurocyclus tuberculosus, an inachoidid spider crab distributed throughout the Western Atlantic of South America from Brazil to Argentina (including Patagonia), and along the Eastern Pacific coast of Chile. The larval development of L. tuberculosus consists of two zoeal stages and one megalopa. We observed that the larval morphology of L. tuberculosus conforms to the general pattern found in Majoidea by having two zoeal stages, in which the first stage has nine or more seta on the scaphognatite of the maxilla, and the second zoeal stage present well developed pleopods. Here, we describe the larval morphology of L. tuberculosus and compare with other inachoidid members for which we have larval information. Key words: Larval development, Majidae, Zoeal stages, Megalopa, Crustacea, Leurocyclus. Introduction described. Larval stages of Anasimus latus Rath- bun, 1894 was the first one to be described by Few decades ago, the family Inachoididae Sandifer and Van Engel (1972). Following, Web- Dana, 1851 was resurrected by Drach and Gui- ber and Wear (1981) and Terada (1983) described not (1983; see also Drach and Guinot, 1982), the first zoeal stage of Pyromaia tuberculata (Lock- who considered that the morphological modifica- ington, 1877), which was completely described tions on the carapace and endophragmal skeleton by Fransozo and Negreiros-Fransozo (1997) and among some majoid genera granted to a set of re-described by Luppi and Spivak (2003).
    [Show full text]
  • Checklist of Brachyuran Crabs (Crustacea: Decapoda) from the Eastern Tropical Pacific by Michel E
    BULLETIN DE L'INSTITUT ROYAL DES SCIENCES NATURELLES DE BELGIQUE, BIOLOGIE, 65: 125-150, 1995 BULLETIN VAN HET KONINKLIJK BELGISCH INSTITUUT VOOR NATUURWETENSCHAPPEN, BIOLOGIE, 65: 125-150, 1995 Checklist of brachyuran crabs (Crustacea: Decapoda) from the eastern tropical Pacific by Michel E. HENDRICKX Abstract Introduction Literature dealing with brachyuran crabs from the east Pacific When available, reliable checklists of marine species is reviewed. Marine and brackish water species reported at least occurring in distinct geographic regions of the world are once in the Eastern Tropical Pacific zoogeographic subregion, of multiple use. In addition of providing comparative which extends from Magdalena Bay, on the west coast of Baja figures for biodiversity studies, they serve as an impor- California, Mexico, to Paita, in northern Peru, are listed and tant tool in defining extension of protected area, inferr- their distribution range along the Pacific coast of America is provided. Unpublished records, based on material kept in the ing potential impact of anthropogenic activity and author's collections were also considered to determine or con- complexity of communities, and estimating availability of firm the presence of species, or to modify previously published living resources. Checklists for zoogeographic regions or distribution ranges within the study area. A total of 450 species, provinces also facilitate biodiversity studies in specific belonging to 181 genera, are included in the checklist, the first habitats, which serve as points of departure for (among ever made available for the entire tropical zoogeographic others) studying the structure of food chains, the relative subregion of the west coast of America. A list of names of species abundance of species, and number of species or total and subspecies currently recognized as invalid for the area is number of organisms of various physical sizes (MAY, also included.
    [Show full text]
  • Atoll Research Bulletin No. 588 Spatio-Temporal
    ATOLL RESEARCH BULLETIN NO. 588 SPATIO-TEMPORAL DISTRIBUTION OF ASSEMBLAGES OF BRACHYURAN CRABS AT LAAMU ATOLL, MALDIVES BY A. A. J. KUMAR AND S. G. WESLEY ISSUED BY NATIONAL MUSEUM OF NATURAL HISTORY SMITHSONIAN INSTITUTION WASHINGTON, D.C., U.S.A. DECEMBER 2010 A N B C Figure l. A) The Maldives (7°10′N and 0°4′S and 72°30′ and 73°40′E) showing Laamu atoll; B) Laamu atoll (2°08′N and 1°47′N) showing Maavah (inside the circle); C) Maavah (1°53′08.92′′N and 73°14′35.61′′E) showing the study sites. SPATIO-TEMPORAL DISTRIBUTION OF ASSEMBLAGES OF BRACHYURAN CRABS AT LAAMU ATOLL, MALDIVES BY A. A. J. KUMAR AND S. G. WESLEY ABSTRACT A spatio-temporal study of the brachyuran assemblages at five marine habitats at Maavah Island, Laamu atoll, Maldives, was conducted for a period of two years from April 2001 to March 2003. Forty-seven species and a sub-species were collected from the study sites. An analysis of the species diversity of the study sites revealed that distributions of families and species were site-specific although some species have wider distributions than others and that there were seasonal variations at some of the sites. The highest species richness (S = 32) and the highest diversity index was shown by a site at north lagoon, which has complex and heterogeneous habitats. The south-east beach brachyuran community, which was low in species richness, exhibited the lowest evenness. An analysis of the constancy index of the different brachyuran communities revealed that the ratio of the species number and abundance of the constant species were considerably higher than the accessory and accidental species.
    [Show full text]
  • CRUSTACEA Zooplankton (PELAGIC ADULTS) Sheet 112 ORDER: DECAPODA V
    CONSEIL PERMANENT INTERNATIONAL POUR L’EXPLORATION DE LA MER CRUSTACEA Zooplankton (PELAGIC ADULTS) Sheet 112 ORDER: DECAPODA V. CARIDEA Families : Pasiphaeidae, Oplophoridae, Hippolytidae and Pandalidae (BY A. L. RICE) 1967 https://doi.org/10.17895/ices.pub.4953 Area considered -That part of the Atlantic to the north-east of a line joining Cape Farewell in Greenland and Cape St.Vincent in Portugal, including the Norwegian, Barents, North and Baltic Seas. 2 2 lb 4a Figure 1. Purupusiphue sulcutifrons Smith. (a) lateral view (after KEMP).(b) mandible (after SMITH).- Figure 2. Pusiphaeu sivudo (Risso). Tip of telson. - Figure 3. Pm$hueu multidentutu Esmark. (a) lateral view (after KEMP).(b) immovable finger of second leg. (c) basis and ischium of second leg. - Figure 4. Pusiphueu turdu Kreyer. (a) lateral view (after KEMP).(b) tip of telson. (c) basis and ischium of second leg. DECAPODA CARIDEA Anterior three pairs of thoracic limbs differentiated from the posterior five pairs as maxillipeds. Pleura of the second abdominal segment over- lapping those of the first and third segment. No chelae on the third legs. This definition distinguishes the Caridea from the Penaeidea, which have the pleura of the second abdominal segment not overlapping those of the first segment and also have chelate third legs, and from the Euphausiacea in which none of the thoracic limbs are modified as maxil- lipeds. (Several of the species dealt with in this sheet probably spend a good deal of their time as adults on or close to the sea bottom and make only occasional mid-water excursions. Some of the species are large and quite powerful swimmers and should perhaps be considered as nektonic rather than planktonic; they are included since they are often taken in large or high speed plankton samplers).
    [Show full text]
  • Brachyura: Bellidae) Megalopae Under Laboratory Conditions Revista De Biología Marina Y Oceanografía, Vol
    Revista de Biología Marina y Oceanografía ISSN: 0717-3326 [email protected] Universidad de Valparaíso Chile Barría, Erwin M.; Pradenas, Mauricio A.; Jara, Carlos G. Effects of substratum and conspecific adults on the development and metamorphosis of Acanthocyclus hassleri (Brachyura: Bellidae) megalopae under laboratory conditions Revista de Biología Marina y Oceanografía, vol. 45, núm. 3, diciembre, 2010, pp. 407-414 Universidad de Valparaíso Viña del Mar, Chile Available in: http://www.redalyc.org/articulo.oa?id=47919217005 How to cite Complete issue Scientific Information System More information about this article Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Journal's homepage in redalyc.org Non-profit academic project, developed under the open access initiative Revista de Biología Marina y Oceanografía Vol. 45, Nº3: 407-414, diciembre 2010 Article Effects of substratum and conspecific adults on the development and metamorphosis of Acanthocyclus hassleri (Brachyura: Bellidae) megalopae under laboratory conditions Efecto del sustrato y adultos conespecíficos sobre el desarrollo y metamorfosis de megalopas de Acanthocyclus hassleri (Brachyura: Bellidae) bajo condiciones de laboratorio Erwin M. Barría1, Mauricio A. Pradenas1 and Carlos G. Jara1 1Instituto de Zoología, Universidad Austral de Chile, Casilla 567, Valdivia, Chile. [email protected] Resumen.- El éxito en la transición pélago-bentónica del meroplancton depende en gran medida de las señales ambientales que induzcan el asentamiento y la metamorfosis. Acanthocyclus hassleri interactúa con las colonias sésiles de Perumytilus purpuratus y Phragmatopoma virgini desde etapas ontogenéticas tempranas; por ello planteamos que el desarrollo y la metamorfosis de la megalopa de A. hassleri son influenciadas por la presencia de estas especies y/o adultos conespecíficos.
    [Show full text]
  • Kiwa Tyleri, a New Species of Yeti Crab from the East Scotia Ridge, Antarctica
    RESEARCH ARTICLE Adaptations to Hydrothermal Vent Life in Kiwa tyleri, a New Species of Yeti Crab from the East Scotia Ridge, Antarctica Sven Thatje1*, Leigh Marsh1, Christopher Nicolai Roterman2, Mark N. Mavrogordato3, Katrin Linse4 1 Ocean and Earth Science, University of Southampton, European Way, Southampton, SO14 3ZH, United Kingdom, 2 National Oceanography Centre, Southampton, European Way, Southampton, SO14 3ZH, United Kingdom, 3 Engineering Sciences, μ-VIS CT Imaging Centre, University of Southampton, Southampton, SO17 1BJ, United Kingdom, 4 British Antarctic Survey, High Cross Madingley Road, CB3 0ET, Cambridge, United Kingdom a11111 * [email protected] Abstract Hydrothermal vents in the Southern Ocean are the physiologically most isolated chemosyn- OPEN ACCESS thetic environments known. Here, we describe Kiwa tyleri sp. nov., the first species of yeti Citation: Thatje S, Marsh L, Roterman CN, crab known from the Southern Ocean. Kiwa tyleri belongs to the family Kiwaidae and is the Mavrogordato MN, Linse K (2015) Adaptations to visually dominant macrofauna of two known vent sites situated on the northern and southern Hydrothermal Vent Life in Kiwa tyleri, a New Species segments of the East Scotia Ridge (ESR). The species is known to depend on primary pro- of Yeti Crab from the East Scotia Ridge, Antarctica. ductivity by chemosynthetic bacteria and resides at the warm-eurythermal vent environment PLoS ONE 10(6): e0127621. doi:10.1371/journal. pone.0127621 for most of its life; its short-range distribution away from vents (few metres) is physiologically constrained by the stable, cold waters of the surrounding Southern Ocean. Kiwa tylerihas Academic Editor: Steffen Kiel, Universität Göttingen, GERMANY been shown to present differential life history adaptations in response to this contrasting thermal environment.
    [Show full text]