OREGON ESTUARINE INVERTEBRATES an Illustrated Guide to the Common and Important Invertebrate Animals

OREGON ESTUARINE INVERTEBRATES An Illustrated Guide to the Common and Important Invertebrate Animals By Paul Rudy, Jr. Lynn Hay Rudy Oregon Institute of Marine Biology University of Oregon Charleston, Oregon 97420 Contract No. 79-111 Project Officer Jay F. Watson U.S. Fish and Wildlife Service 500 N.E. Multnomah Street Portland, Oregon 97232 Performed for National Coastal Ecosystems Team Office of Biological Services Fish and Wildlife Service U.S. Department of Interior Washington, D.C. 20240 Table of Contents Introduction CNIDARIA Hydrozoa Aequorea aequorea ................................................................ 6 Obelia longissima .................................................................. 8 Polyorchis penicillatus 10 Tubularia crocea ................................................................. 12 Anthozoa Anthopleura artemisia ................................. 14 Anthopleura elegantissima .................................................. 16 Haliplanella luciae .................................................................. 18 Nematostella vectensis ......................................................... 20 Metridium senile .................................................................... 22 NEMERTEA Amphiporus imparispinosus ................................................ 24 Carinoma mutabilis ................................................................ 26 Cerebratulus californiensis .................................................. 28 Lineus ruber .......................................................................... 30 Paranemertes peregrina ....................................................... 32 Tubulanus polymorphus ....................................................... 34 Tubulanus sexlineatus ........................................................... 36 ANNELIDA Polychaeta Arenicolidae Abarenicola pacifica ............................................................. 38 Capitellidae Capitella capitata 40 Glyceridae Glycera robusta ...................................................................... 42 Goniadidae Glycinde armigera .................................................................. 44 Lumbrineridae Lumbrineris zonata ............................................................. 46 Nephtyidae Nephtys caeca ...................................................................... 48 Nereidae Nephtys caecoides ............................................................... 50 Nereis (Hediste) limnicola .................................................... 52 Nereis (Neanthes) brandti .................................................. 54 Nereis (Nereis) vexillosa ....................................................... 56 Ophelidae Armandia brevis .................................................................... 58 Euzonus mucronata ............................................................. 60 Ophelia assimilis .................................................................... 62 Phyllodocidae Eteone lighti .......................................................................... 64 Eteone pacifica ...................................................................... 66 Polynoidae Halosydna brevisetosa ......................................................... 68 Hesperonoe complanata ................................................... 70 Sabellidae Eudistylia vancouveri ......................................................... 72 Spionidae Boccardia proboscidea ......................................................... 74 Polydora nuchalis .................................................................. 76 Terebellidae Pista pacifica ........................................................................... 78 Thelepus crispus 80 ARTHROPODA Crustacea Cirripedia Semibalanus cariosus ....................................................... 82 Balanus crenatus .................................................................. 84 Balanus glandula .................................................................... 86 Balanus nubilus ...................................................................... 88 Tanaidacea Leptochelia dubia ......................................................... 90 Isopoda ldotea (Pentidotea) resecata ........................................... 92 ldotea (Pentidotea) wosnesenskii ..................................... 94 Gnorimosphaeroma insulare ........................................... 96 Ligia pallasii 98 Limnoria tripunctata 100 laniropsis kincaidi derjugini 1 02 Detonella papiliicornis ..................................................... 104 Amphipoda Ampithoe lacertosa ......................................................... 1 06 Corophium brevis ......................................................... 108 Corophium salmonis ..................................................... 110 Corophium spinicorne ..................................................... 112 Allorchestes angusta ....................................................... 114 Eogammarus confervicolus ............................................. 116 Traskorchestia traskiana 118 Megalorchestia pugettensis ......................................... 120 Crustacea Caridea Lissocrangon stylirostris ................................................. 122 Crangon franciscorum ..................................................... 124 Crangon alaskensis ......................................................... 126 Heptacarpus paludicula 128 Heptacarpus pictus ......................................................... 130 Brachyu ra Pugettia producta ........................................................... 132 Cancer antennarius ......................................................... 134 Cancer magister ............................................................. 136 Cancer oregonensis ....................................................... 138 Cancer productus ........................................................... 140 Rhithropanopeus harrisii ................................................. 142 Pinnixa faba .................................................................. 144 Hemigrapsus nudus ....................................................... 146 Hemigrapsus oregonensis ............................................... 148 Pachygrapsus crassipes ................................................. 150 Mac ru ra Callianassa californiensis ............................................... 152 Upogebia pugettensis ..................................................... 154 Anomu ra Pagurus hirsutiusculus ................................................... 156 Petrolisthes cinctipes 158 MOLLUSCA Bivalvia Clinocardium nuttallii 160 Adula californiensis 162 Mytilus edulis 164 Protothaca staminea ....................................................... 1 66 Saxidomus giganteus ..................................................... 1 68 Transennella tantilla 170 Tresus capax ................................................................... 172 Macoma balthica .........................................................................174 Macoma inquinata .........................................................................176 Macoma nasuta ...........................................................................178 Siliqua patula ...................................................................... ........... 180 Mya arenaria ........................................................... ......................182 Cryptomya californica ................................................ ..................184 Hiatella arctica ...................................................................... .......186 Penitella penita ...................................................................... .......188 Zirfaea pilsbryi ...................................................................... .......190 Bankia setacea ............................................................................. 192 Entodesma saxicola ............................................................. .......194 Gastropoda Collisella digitalis ...........................................................................196 Collisella pelta ........................................................................ ...... 1 98 Tegula funebralis .................................................................... ...... 200 Littorina scutulata ........................................................................ 202 Littorina sitkana ...................................................................... ...... 204 Lacuna porrecta .................................................................... 206 Assiminea californica ........................................................... ...... 208 Nucella emarginata ...................................................................... 210 Nucella lamellosa .........................................................................212 Olivella biplicata .......................................................................... 214 Ovatella myosotis ........................................................................ 216 Opisthobranchia Alderia modesta .......................................................................... 218 Onchidoris bilamellata ................................................................. 220 ECHINODERMATA Asteroidea Pisaster brevispinus ............................................................. ...... 222 Pisaster ochraceus ............................................................. ........ 224 Sources of Illustrations

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