Zootaxa 3371: 1–307 (2012) ISSN 1175-5326 (Print Edition) Monograph ZOOTAXA Copyright © 2012 · Magnolia Press ISSN 1175-5334 (Online Edition)

Total Page：16

File Type：pdf, Size：1020Kb

Zootaxa 3371: 1–307 (2012) ISSN 1175-5326 (Print Edition) Monograph ZOOTAXA Copyright © 2012 · Magnolia Press ISSN 1175-5334 (Online Edition)

Zootaxa 3371: 1–307 (2012) ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ Monograph ZOOTAXA Copyright © 2012 · Magnolia Press ISSN 1175-5334 (online edition) ZOOTAXA 3371 Decapod Crustacea of the Californian and Oregonian Zoogeographic Provinces MARY K. WICKSTEN Department of Biology, Texas A&M University, College Station TX 77843-3258 U.S.A. E-mail: [email protected] Magnolia Press Auckland, New Zealand Accepted by P. Castro: 16 Mar. 2012; published: 4 Jul. 2012 MARY K. WICKSTEN Decapod Crustacea of the Californian and Oregonian Zoogeographic Provinces (Zootaxa 3371) 307 pp.; 30 cm. 4 Jul. 2012 ISBN 978-1-86977-935-1 (paperback) ISBN 978-1-86977-936-8 (Online edition) FIRST PUBLISHED IN 2012 BY Magnolia Press P.O. Box 41-383 Auckland 1346 New Zealand e-mail: [email protected] http://www.mapress.com/zootaxa/ © 2012 Magnolia Press All rights reserved. No part of this publication may be reproduced, stored, transmitted or disseminated, in any form, or by any means, without prior written permission from the publisher, to whom all requests to reproduce copyright material should be directed in writing. This authorization does not extend to any other kind of copying, by any means, in any form, and for any purpose other than private research use. ISSN 1175-5326 (Print edition) ISSN 1175-5334 (Online edition) 2 · Zootaxa 3371 © 2012 Magnolia Press WICKSTEN Table of contents Abstract . 5 Introduction . 5 Methods and coverage . 6 Zoogeography . 10 Habitats . 13 Symbiotic species . 14 Introduced species . 15 Shrimps . 15 Key to the families of shrimps. 16 Suborder Dendrobranchiata. 17 Superfamily Penaeoidea . 17 Family Benthesicymidae . 17 Family Penaeidae . 24 Family Sicyonidae . 25 Family Solenoceridae. 26 Superfamily Sergestoidea . 26 Family Sergestidae . 26 Suborder Pleocyemata . 32 Infraorder Stenopodidea . 32 Family Stenopodidae . 32 Infraorder Caridea . 34 Superfamily Pasiphaeoidea . 34 Family Pasiphaeidae. 34 Superfamily Oplophoroidea . 41 Family Oplophoridae . 41 Superfamily Nematocarcinoidea . 48 Family Nematocarcinidae . 48 Superfamily Stylodactyloidea . 50 Family Stylodactylidae. 50 Superfamily Atyoidea . 50 Family Atyidae. 50 Superfamily Palaemonoidea. 51 Family Palaemonidae . 51 Superfamily Alpheoidea. 57 Family Alpheidae . 57 Family Hippolytidae. 69 Family Lysmatidae . 71 Family Thoridae . 72 Family Ogyrididae . 95 Superfamily Processoidea . 96 Family Processidae. 96 Superfamily Pandaloidea . ..

Copy Link

Recommended publications

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.
[Show full text]
Color Patterns of the Shrimps Heptacarpus Pictus and H. Paludicola (Caridea: Hippolytidae)
MARINE BIOLOGY Marine Biology 64, 141-152 (1981) © Springer-Verlag 1981 Color Patterns of the Shrimps Heptacarpus pictus and H. paludicola (Caridea: Hippolytidae) R. T. Bauer Department of Invertebrate Zoology, National Museum of Natural History, Smithsonian Institution; Washington, D.C. 20560, USA Abstract coloration has been on the isopod Idothea montereyensis Maloney; Lee (1966 a,b, 1972) studied the biochemical Color patterns of the shallow-water shrimps Heptacarpus and cellular bases of color patterns and the ecology of pictus and H. paludicola are formed by chromatosomes color change. However, no caridean shrimp has been (usually termed chromatophores) located beneath the studied so thoroughly. Gamble and Keeble (1900) and translucent exoskeleton. Development of color patterns Keeble and Gamble (1900, 1904) described in detail the is related to size (age) and sex. The color expressed is chromatophores (chromatosomes in the modern usage of determined by the chromatosome pigment dispersion, Elofsson and Kauri, 1971) and coloration of the shrimp arrangement, and density. In populations with well- Hippolyte varians Leach. Chassard-Bouchaud (1965), in developed coloration (//. pictus from Cayucos, California, her extensive work on physiological and morphological 1976-1978,//. paludicola from ArgyleChannel, San Juan color change in caridean shrimp, described the chromato Island, Washington, June-July, 1978), prominent somes and illustrated the color morphs of H. varians, coloration was a characteristic of maturing females, Palaemoii squilla (L.), P. serratus (Pennant), Athanas breeding females, and some of the larger males. In the nitescens Leach, and Crangon crangon (L.). Carlisle and Morro Bay, California, population of H. paludicola Knowles (1959) give a brief review of color patterns in (sampled 1976-1978), color patterns were poorly decapod species.
[Show full text]
Lobsters-Identification, World Distribution, and U.S. Trade
Lobsters-Identification, World Distribution, and U.S. Trade AUSTIN B. WILLIAMS Introduction tons to pounds to conform with US. tinents and islands, shoal platforms, and fishery statistics). This total includes certain seamounts (Fig. 1 and 2). More Lobsters are valued throughout the clawed lobsters, spiny and flat lobsters, over, the world distribution of these world as prime seafood items wherever and squat lobsters or langostinos (Tables animals can also be divided rougWy into they are caught, sold, or consumed. 1 and 2). temperate, subtropical, and tropical Basically, three kinds are marketed for Fisheries for these animals are de temperature zones. From such partition food, the clawed lobsters (superfamily cidedly concentrated in certain areas of ing, the following facts regarding lob Nephropoidea), the squat lobsters the world because of species distribu ster fisheries emerge. (family Galatheidae), and the spiny or tion, and this can be recognized by Clawed lobster fisheries (superfamily nonclawed lobsters (superfamily noting regional and species catches. The Nephropoidea) are concentrated in the Palinuroidea) . Food and Agriculture Organization of temperate North Atlantic region, al The US. market in clawed lobsters is the United Nations (FAO) has divided though there is minor fishing for them dominated by whole living American the world into 27 major fishing areas for in cooler waters at the edge of the con lobsters, Homarus americanus, caught the purpose of reporting fishery statis tinental platform in the Gul f of Mexico, off the northeastern United States and tics. Nineteen of these are marine fish Caribbean Sea (Roe, 1966), western southeastern Canada, but certain ing areas, but lobster distribution is South Atlantic along the coast of Brazil, smaller species of clawed lobsters from restricted to only 14 of them, i.e.
[Show full text]
Wild Species 2010 the GENERAL STATUS of SPECIES in CANADA
Wild Species 2010 THE GENERAL STATUS OF SPECIES IN CANADA Canadian Endangered Species Conservation Council National General Status Working Group This report is a product from the collaboration of all provincial and territorial governments in Canada, and of the federal government. Canadian Endangered Species Conservation Council (CESCC). 2011. Wild Species 2010: The General Status of Species in Canada. National General Status Working Group: 302 pp. Available in French under title: Espèces sauvages 2010: La situation générale des espèces au Canada. ii Abstract Wild Species 2010 is the third report of the series after 2000 and 2005. The aim of the Wild Species series is to provide an overview on which species occur in Canada, in which provinces, territories or ocean regions they occur, and what is their status. Each species assessed in this report received a rank among the following categories: Extinct (0.2), Extirpated (0.1), At Risk (1), May Be At Risk (2), Sensitive (3), Secure (4), Undetermined (5), Not Assessed (6), Exotic (7) or Accidental (8). In the 2010 report, 11 950 species were assessed. Many taxonomic groups that were first assessed in the previous Wild Species reports were reassessed, such as vascular plants, freshwater mussels, odonates, butterflies, crayfishes, amphibians, reptiles, birds and mammals. Other taxonomic groups are assessed for the first time in the Wild Species 2010 report, namely lichens, mosses, spiders, predaceous diving beetles, ground beetles (including the reassessment of tiger beetles), lady beetles, bumblebees, black flies, horse flies, mosquitoes, and some selected macromoths. The overall results of this report show that the majority of Canada’s wild species are ranked Secure.
[Show full text]
Decapod Crustacean Grooming: Functional Morphology, Adaptive Value, and Phylogenetic Significance
Decapod crustacean grooming: Functional morphology, adaptive value, and phylogenetic significance N RAYMOND T.BAUER Center for Crustacean Research, University of Southwestern Louisiana, USA ABSTRACT Grooming behavior is well developed in many decapod crustaceans. Antennular grooming by the third maxillipedes is found throughout the Decapoda. Gill cleaning mechanisms are qaite variable: chelipede brushes, setiferous epipods, epipod-setobranch systems. However, microstructure of gill cleaning setae, which are equipped with digitate scale setules, is quite conservative. General body grooming, performed by serrate setal brushes on chelipedes and/or posterior pereiopods, is best developed in decapods at a natant grade of body morphology. Brachyuran crabs exhibit less body grooming and virtually no specialized body grooming structures. It is hypothesized that the fouling pressures for body grooming are more severe in natant than in replant decapods. Epizoic fouling, particularly microbial fouling, and sediment fouling have been shown r I m ans of amputation experiments to produce severe effects on olfactory hairs, gills, and i.icubated embryos within short lime periods. Grooming has been strongly suggested as an important factor in the coevolution of a rhizocephalan parasite and its anomuran host. The behavioral organization of grooming is poorly studied; the nature of stimuli promoting grooming is not understood. Grooming characters may contribute to an understanding of certain aspects of decapod phylogeny. The occurrence of specialized antennal grooming brushes in the Stenopodidea, Caridea, and Dendrobranchiata is probably not due to convergence; alternative hypotheses are proposed to explain the distribution of this grooming character. Gill cleaning and general body grooming characters support a thalassinidean origin of the Anomura; the hypothesis of brachyuran monophyly is supported by the conservative and unique gill-cleaning method of the group.
[Show full text]
W7192e19.Pdf
click for previous page 952 Shrimps and Prawns Sicyoniidae SICYONIIDAE Rock shrimps iagnostic characters: Body generally Drobust, with shell very hard, of “stony” grooves appearance; abdomen often with deep grooves and numerous tubercles. Rostrum well developed and extending beyond eyes, always bearing more than 3 upper teeth (in- cluding those on carapace); base of eyestalk with styliform projection on inner surface, but without tubercle on inner border. Both upper and lower antennular flagella of similar length, attached to tip of antennular peduncle. 1 Carapace lacks both postorbital and postantennal spines, cervical groove in- distinct or absent. Exopod present only on first maxilliped. All 5 pairs of legs well devel- 2 oped, fourth leg bearing a single well-devel- 3rd and 4th pleopods 4 single-branched oped arthrobranch (hidden beneath 3 carapace). In males, endopod of second pair 5 of pleopods (abdominal appendages) with appendix masculina only. Third and fourth pleopods single-branched. Telson generally armed with a pair of fixed lateral spines. Colour: body colour varies from dark brown to reddish; often with distinct spots or colour markings on carapace and/or abdomen - such colour markings are specific and very useful in distinguishing the species. Habitat, biology, and fisheries: All members of this family are marine and can be found from shallow to deep waters (to depths of more than 400 m). They are all benthic and occur on both soft and hard bottoms. Their sizes are generally small, about 2 to 8 cm, but some species can reach a body length over 15 cm. The sexes are easily distinguished by the presence of a large copulatory organ (petasma) on the first pair of pleopods of males, while the females have the posterior thoracic sternites modified into a large sperm receptacle process (thelycum) which holds the spermatophores or sperm sacs (usually whitish or yellowish in colour) after mating.
[Show full text]
Brachyura, Majoidea) Genera Acanthonyx Latreille, 1828 and Epialtus H
Nauplius 20(2): 179-186, 2012 179 Range extensions along western Atlantic for Epialtidae crabs (Brachyura, Majoidea) genera Acanthonyx Latreille, 1828 and Epialtus H. Milne Edwards, 1834 Ana Francisca Tamburus and Fernando L. Mantelatto Laboratory of Bioecology and Crustacean Systematics (LBSC) - Postgraduate Program in Comparative Biology - Department of Biology - Faculty of Philosophy, Sciences and Letters of Ribeirão Preto (FFCLRP) - University of São Paulo (USP). Av. Bandeirantes 3900, CEP 14040- 901, Ribeirão Preto (SP), Brazil. E-mails: (AFT) [email protected]; (FLM) [email protected] Abstract The present study provided information extending the known geographical distribution of three species of majoid crabs, the epialtids Acanthonyx dissimulatus Coelho, 1993, Epialtus bituberculatus H. Milne Edwards, 1834, and E. brasiliensis Dana, 1852. Specimens of both genera from different carcinological collections were studied by comparing morphological characters. We provide new data that extends the geographical distributions of E. bituberculatus to the coast of the states of Paraná and Santa Catarina (Brazil), and offer new records from Belize and Costa Rica. Epialtus brasiliensis is recorded for the first time in the state of Rio Grande do Sul (Brazil), and A. dissimulatus is reported from Quintana Roo, Mexico. The distribution of A. dissimulatus, previously known as endemic to Brazil, has a gap between the states of Espírito Santo and Rio de Janeiro. However, this restricted southern distribution is herein amplified by the Mexican specimens. Key words: Geographic distribution, majoid, new records, spider crabs. Introduction (Melo, 1996). Epialtus bituberculatus H. Milne Edwards, 1834 has been from Florida (USA), The family Epialtidae MacLeay, 1838 Gulf of Mexico, West Indies, Colombia, includes 76 genera, among them Acanthonyx Venezuela and Brazil (Ceará to São Paulo Latreille, 1828 and Epialtus H.
[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]
Diversity and Life-Cycle Analysis of Pacific Ocean Zooplankton by Video Microscopy and DNA Barcoding: Crustacea
Journal of Aquaculture & Marine Biology Research Article Open Access Diversity and life-cycle analysis of Pacific Ocean zooplankton by video microscopy and DNA barcoding: Crustacea Abstract Volume 10 Issue 3 - 2021 Determining the DNA sequencing of a small element in the mitochondrial DNA (DNA Peter Bryant,1 Timothy Arehart2 barcoding) makes it possible to easily identify individuals of different larval stages of 1Department of Developmental and Cell Biology, University of marine crustaceans without the need for laboratory rearing. It can also be used to construct California, USA taxonomic trees, although it is not yet clear to what extent this barcode-based taxonomy 2Crystal Cove Conservancy, Newport Coast, CA, USA reflects more traditional morphological or molecular taxonomy. Collections of zooplankton were made using conventional plankton nets in Newport Bay and the Pacific Ocean near Correspondence: Peter Bryant, Department of Newport Beach, California (Lat. 33.628342, Long. -117.927933) between May 2013 and Developmental and Cell Biology, University of California, USA, January 2020, and individual crustacean specimens were documented by video microscopy. Email Adult crustaceans were collected from solid substrates in the same areas. Specimens were preserved in ethanol and sent to the Canadian Centre for DNA Barcoding at the Received: June 03, 2021 | Published: July 26, 2021 University of Guelph, Ontario, Canada for sequencing of the COI DNA barcode. From 1042 specimens, 544 COI sequences were obtained falling into 199 Barcode Identification Numbers (BINs), of which 76 correspond to recognized species. For 15 species of decapods (Loxorhynchus grandis, Pelia tumida, Pugettia dalli, Metacarcinus anthonyi, Metacarcinus gracilis, Pachygrapsus crassipes, Pleuroncodes planipes, Lophopanopeus sp., Pinnixa franciscana, Pinnixa tubicola, Pagurus longicarpus, Petrolisthes cabrilloi, Portunus xantusii, Hemigrapsus oregonensis, Heptacarpus brevirostris), DNA barcoding allowed the matching of different life-cycle stages (zoea, megalops, adult).
[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]
Prawn Fauna (Crustacea: Decapoda) of India - an Annotated Checklist of the Penaeoid, Sergestoid, Stenopodid and Caridean Prawns
Available online at: www.mbai.org.in doi: 10.6024/jmbai.2012.54.1.01697-08 Prawn fauna (Crustacea: Decapoda) of India - An annotated checklist of the Penaeoid, Sergestoid, Stenopodid and Caridean prawns E. V. Radhakrishnan*1, V. D. Deshmukh2, G. Maheswarudu3, Jose Josileen 1, A. P. Dineshbabu4, K. K. Philipose5, P. T. Sarada6, S. Lakshmi Pillai1, K. N. Saleela7, Rekhadevi Chakraborty1, Gyanaranjan Dash8, C.K. Sajeev1, P. Thirumilu9, B. Sridhara4, Y Muniyappa4, A.D.Sawant2, Narayan G Vaidya5, R. Dias Johny2, J. B. Verma3, P.K.Baby1, C. Unnikrishnan7, 10 11 11 1 7 N. P. Ramachandran , A. Vairamani , A. Palanichamy , M. Radhakrishnan and B. Raju 1CMFRI HQ, Cochin, 2Mumbai RC of CMFRI, 3Visakhapatnam RC of CMFRI, 4Mangalore RC of CMFRI, 5Karwar RC of CMFRI, 6Tuticorin RC of CMFRI, 7Vizhinjam RC of CMFRI, 8Veraval RC of CMFRI, 9Madras RC of CMFRI, 10Calicut RC of CMFRI, 11Mandapam RC of CMFRI *Correspondence e-mail: [email protected] Received: 07 Sep 2011, Accepted: 15 Mar 2012, Published: 30 Apr 2012 Original Article Abstract Many penaeoid prawns are of considerable value for the fishing Introduction industry and aquaculture operations. The annual estimated average landing of prawns from the fishery in India was 3.98 The prawn fauna inhabiting the marine, estuarine and lakh tonnes (2008-10) of which 60% were contributed by freshwater ecosystems of India are diverse and fairly well penaeid prawns. An additional 1.5 lakh tonnes is produced from known. Significant contributions to systematics of marine aquaculture. During 2010-11, India exported US $ 2.8 billion worth marine products, of which shrimp contributed 3.09% in prawns of Indian region were that of Milne Edwards (1837), volume and 69.5% in value of the total export.
[Show full text]
Crustacea, Decapoda, Brachyura), from the Eocene of the Iberian Peninsula
BATALLERIA 24 2017 6-12 (Barcelona, mayo 2017) ISSN0214-7831 Tavernolesia, new genus (Crustacea, Decapoda, Brachyura), from the Eocene of the Iberian Peninsula Pedro Artal 1 & Alfonso Onetti2 1 Museo Geológico del Seminario de Barcelona, Diputación 231, 08007 Barcelona, Spain. E-mail: [email protected] 2 Quarter Sanata 18, 08460 Santa María de Palautordera (Barcelona, Spain). E-mail: [email protected] ABSTRACT- Some new fossil brachyurans from Middle Eocene (Middle Lutetian) strata in the Provinces of Barcelona and Girona (Catalonia, Spain), discovered in old collections housed in the Geological Museum of Barcelona Seminary (= MGSB), assigned until now to the genus Stenodromia, present after accurate preparation, extraordinary fairly complete female ventral portions, complete attached chelipeds, and complete dorsal features. The main ventral characters of a unique specimen, such as the narrow, subtriangular female abdomen, with all abdominal segments free, not totally covering the narrow sternum, and the complete attached chelipeds, permit detailed and more confident comparison with closer fossil and extant genera. The unique assemblage of characters, mainly the peculiar frontal and orbital construction, the dorsal rows of discrete tubercles, the absence of deep dorsal grooves, together with the conspicuously long mesobranchial spines, warrants the erection of a new genus, Tavernolesia n. gen. The completeness of the new specimens, permit more detailed diagnosis, and the placement in the superfamily Calappoidea is confirmed. RESUMEN - La cuidadosa preparación de algunos crustáceos decápodos, procedentes de antiguas colecciones, actualmente depositados en el MGSB, presenta una extraordinaria conservación de los quelípedos, así como de porciones dorsales y ventrales del caparazón. Estos decápodos, recuperados de estratos del Eoceno medio de las Provincias de Barcelona y Girona, estaban asignados hasta ahora al género Stenodromia.
[Show full text]