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Ecography ECOG-01937 Hattab, T., Leprieur, F., Ben Rais Lasram, F., Gravel, D., Le Loc’H, F
Ecography ECOG-01937 Hattab, T., Leprieur, F., Ben Rais Lasram, F., Gravel, D., Le Loc’h, F. and Albouy, C. 2016. Forecasting fine- scale changes in the food-web structure of coastal marine communities under climate change. – Ecography doi: 10.1111/ecog.01937 Supplementary material Forecasting fine-scale changes in the food-web structure of coastal marine communities under climate change by Hattab et al. Appendix 1 List of coastal exploited marine species considered in this study Species Genus Order Family Class Trophic guild Auxis rochei rochei (Risso, 1810) Auxis Perciformes Scombridae Actinopterygii Top predators Balistes capriscus Gmelin, 1789 Balistes Tetraodontiformes Balistidae Actinopterygii Macro-carnivorous Boops boops (Linnaeus, 1758) Boops Perciformes Sparidae Actinopterygii Basal species Carcharhinus plumbeus (Nardo, 1827) Carcharhinus Carcharhiniformes Carcharhinidae Elasmobranchii Top predators Dasyatis pastinaca (Linnaeus, 1758) Dasyatis Rajiformes Dasyatidae Elasmobranchii Top predators Dentex dentex (Linnaeus, 1758) Dentex Perciformes Sparidae Actinopterygii Macro-carnivorous Dentex maroccanus Valenciennes, 1830 Dentex Perciformes Sparidae Actinopterygii Macro-carnivorous Diplodus annularis (Linnaeus, 1758) Diplodus Perciformes Sparidae Actinopterygii Forage species Diplodus sargus sargus (Linnaeus, 1758) Diplodus Perciformes Sparidae Actinopterygii Macro-carnivorous (Geoffroy Saint- Diplodus vulgaris Hilaire, 1817) Diplodus Perciformes Sparidae Actinopterygii Basal species Engraulis encrasicolus (Linnaeus, 1758) Engraulis -
DEEP SEA LEBANON RESULTS of the 2016 EXPEDITION EXPLORING SUBMARINE CANYONS Towards Deep-Sea Conservation in Lebanon Project
DEEP SEA LEBANON RESULTS OF THE 2016 EXPEDITION EXPLORING SUBMARINE CANYONS Towards Deep-Sea Conservation in Lebanon Project March 2018 DEEP SEA LEBANON RESULTS OF THE 2016 EXPEDITION EXPLORING SUBMARINE CANYONS Towards Deep-Sea Conservation in Lebanon Project Citation: Aguilar, R., García, S., Perry, A.L., Alvarez, H., Blanco, J., Bitar, G. 2018. 2016 Deep-sea Lebanon Expedition: Exploring Submarine Canyons. Oceana, Madrid. 94 p. DOI: 10.31230/osf.io/34cb9 Based on an official request from Lebanon’s Ministry of Environment back in 2013, Oceana has planned and carried out an expedition to survey Lebanese deep-sea canyons and escarpments. Cover: Cerianthus membranaceus © OCEANA All photos are © OCEANA Index 06 Introduction 11 Methods 16 Results 44 Areas 12 Rov surveys 16 Habitat types 44 Tarablus/Batroun 14 Infaunal surveys 16 Coralligenous habitat 44 Jounieh 14 Oceanographic and rhodolith/maërl 45 St. George beds measurements 46 Beirut 19 Sandy bottoms 15 Data analyses 46 Sayniq 15 Collaborations 20 Sandy-muddy bottoms 20 Rocky bottoms 22 Canyon heads 22 Bathyal muds 24 Species 27 Fishes 29 Crustaceans 30 Echinoderms 31 Cnidarians 36 Sponges 38 Molluscs 40 Bryozoans 40 Brachiopods 42 Tunicates 42 Annelids 42 Foraminifera 42 Algae | Deep sea Lebanon OCEANA 47 Human 50 Discussion and 68 Annex 1 85 Annex 2 impacts conclusions 68 Table A1. List of 85 Methodology for 47 Marine litter 51 Main expedition species identified assesing relative 49 Fisheries findings 84 Table A2. List conservation interest of 49 Other observations 52 Key community of threatened types and their species identified survey areas ecological importanc 84 Figure A1. -
The Zoology of East Greenland
/V ^^^tAx^^T^' MEDDELELSER OM GR0NLAND UDGIVNE AF ^ KOMMISSIONEN FOR VIDENSKABELIGE UNDERS0GELSERIGR0NLAND BD. 126 • NR. 6 THE ZOOLOGY OF EAST GREENLAND Edited by M. Degerbel, Ad. S. Jensen, R. Sparck and G. Thorson, Dr. phil. Professor, Dr. phil. Professor, Dr. phil. Dr. phil. in Cooperation with the Editorial Committee of »MeddeleIser om GronIand«. DECAPOD CRUSTACEANS BY P. E. HEEGAARD WITH 27 FIGURES IN THE TEXT 't! % K0BENHAVN C. A. REITZELS FORLAG BIANCO LUNOS BOGTRYKKKRI A/S 1941 Pris: Kr. 3.50. MEDDELELSER OM GR0NLAND UDGIVNE AF KOMMISSIONEN FOR VIDENSKABELIGE UNDERS0GELSER I GR0NLAND BD. 121 • NR. 6 THE ZOOLOGY OF EAST GREENLAND DECAPOD CRUSTACEANS BY P. E. HEEGAARD WITH 27 FIGURES IN THE TEXT K0BENHAVN C. A. REITZELS FORLAG BIANCO LUNOS BOGTRYKKERI A/S 1941 CONTENTS Pa Re Introduction 5 Brachyura Hyas coaretains Anornura Lithode.s- maja — grimaldii Paralomis spectabilis — bouvicri '5 Eupagurus pubescens !*"> Munida lenuimana. Galacanta roslrata Munidopsis eurriroslra 1 — si His Macrura 20 Polycheles nanus Sclerocra.ngon jero.t: 20 — borcas 24 Neetocrangon lar 28 Sabinea, hystri.r sepleincannala 31 Pont o phi I us norvegieus 34 Glyphocrangon sculptus Spirontocaris gainiardu — spin us 39 — lilijeborgii 42 — turgida 42 — polar is 45 groenlandiea 47 Bythocaris payeri 50 — leucopis °2 — simplicirostris 53 Pandalus boreahs 54 — propinquus 5(> Pasiphae tarda. 57 Hymenodora glacial is 58 Amalopeneus elegans 59 Sergestes arclicus "0 General remarks Literature INTRODUCTION The present paper comprises an account of the Crustacean Decapods so far found off the coast of East Greenland. Tt is primarily based on collections made by Danish Expeditions during the last few years, amongst which can be mentioned: ,,Treaarsexpeditionen til Christian d. -
Vulnerable Forests of the Pink Sea Fan Eunicella Verrucosa in the Mediterranean Sea
diversity Article Vulnerable Forests of the Pink Sea Fan Eunicella verrucosa in the Mediterranean Sea Giovanni Chimienti 1,2 1 Dipartimento di Biologia, Università degli Studi di Bari, Via Orabona 4, 70125 Bari, Italy; [email protected]; Tel.: +39-080-544-3344 2 CoNISMa, Piazzale Flaminio 9, 00197 Roma, Italy Received: 14 April 2020; Accepted: 28 April 2020; Published: 30 April 2020 Abstract: The pink sea fan Eunicella verrucosa (Cnidaria, Anthozoa, Alcyonacea) can form coral forests at mesophotic depths in the Mediterranean Sea. Despite the recognized importance of these habitats, they have been scantly studied and their distribution is mostly unknown. This study reports the new finding of E. verrucosa forests in the Mediterranean Sea, and the updated distribution of this species that has been considered rare in the basin. In particular, one site off Sanremo (Ligurian Sea) was characterized by a monospecific population of E. verrucosa with 2.3 0.2 colonies m 2. By combining ± − new records, literature, and citizen science data, the species is believed to be widespread in the basin with few or isolated colonies, and 19 E. verrucosa forests were identified. The overall associated community showed how these coral forests are essential for species of conservation interest, as well as for species of high commercial value. For this reason, proper protection and management strategies are necessary. Keywords: Anthozoa; Alcyonacea; gorgonian; coral habitat; coral forest; VME; biodiversity; mesophotic; citizen science; distribution 1. Introduction Arborescent corals such as antipatharians and alcyonaceans can form mono- or multispecific animal forests that represent vulnerable marine ecosystems of great ecological importance [1–4]. -
A Biotope Sensitivity Database to Underpin Delivery of the Habitats Directive and Biodiversity Action Plan in the Seas Around England and Scotland
English Nature Research Reports Number 499 A biotope sensitivity database to underpin delivery of the Habitats Directive and Biodiversity Action Plan in the seas around England and Scotland Harvey Tyler-Walters Keith Hiscock This report has been prepared by the Marine Biological Association of the UK (MBA) as part of the work being undertaken in the Marine Life Information Network (MarLIN). The report is part of a contract placed by English Nature, additionally supported by Scottish Natural Heritage, to assist in the provision of sensitivity information to underpin the implementation of the Habitats Directive and the UK Biodiversity Action Plan. The views expressed in the report are not necessarily those of the funding bodies. Any errors or omissions contained in this report are the responsibility of the MBA. February 2003 You may reproduce as many copies of this report as you like, provided such copies stipulate that copyright remains, jointly, with English Nature, Scottish Natural Heritage and the Marine Biological Association of the UK. ISSN 0967-876X © Joint copyright 2003 English Nature, Scottish Natural Heritage and the Marine Biological Association of the UK. Biotope sensitivity database Final report This report should be cited as: TYLER-WALTERS, H. & HISCOCK, K., 2003. A biotope sensitivity database to underpin delivery of the Habitats Directive and Biodiversity Action Plan in the seas around England and Scotland. Report to English Nature and Scottish Natural Heritage from the Marine Life Information Network (MarLIN). Plymouth: Marine Biological Association of the UK. [Final Report] 2 Biotope sensitivity database Final report Contents Foreword and acknowledgements.............................................................................................. 5 Executive summary .................................................................................................................... 7 1 Introduction to the project .............................................................................................. -
Systematics of Scorpaeniformes Species in the Mediterranean Sea Inferred from Mitochondrial 16S Rdna Sequence and Morphological Data
Folia biologica (Kraków), vol. 57 (2009), No 1-2 doi:10.3409/fb57_1-2.219-226 SystematicsofScorpaeniformesSpecies intheMediterraneanSeaInferred fromMitochondrial16SrDNASequenceandMorphologicalData CemalTURAN,IslamGUNDUZ,MevlütGURLEK,DenizYAGLIOGLU andDenizERGUDEN Accepted September 15, 2008 TURAN C., GUNDUZ I., GURLEK M., YAGLIOGLU D., ERGUDEN D. 2009. Systematics of Scorpaeniformes species in the Mediterranean Sea inferred from mitochondrial 16S rDNA sequence and morphological data. Folia biol. (Kraków) 57: 219-226. Genetic and morphological divergence and phylogenetic relationships of Scorpaeniformes fishincludingtwogeneraandsixspecies, Helicolenus dactylopterus, Scorpaena maderensis, Scorpaena porcus, Scorpaena elongata, Scorpaena scrofa, Scorpaena notata, living in the Mediterranean Sea, were investigated with morphological and mitochondrial 16S rDNA sequence data. The mean nucleotide diversity was found to be 0.0792. Average sequence divergence between species of Sebastidae and Scorpaenidae was 8.4%, and 6.4%. between species of the genus Scorpaena. For congeneric comparisions, the lowest genetic divergence (0.7%) was observed between S. porcus and S. notata, and the highest divergence (10.8%) was detected between S. maderensis and S. notata. High levels of nucleotide divergence were detected between species of two families, and the maximum value was found to be 14.5% between H. dactylopterus and S. elongata. The two phylogenetic methods (NJ and MP)identifiedtwomajorlineages. IntheNJtree S. elongata wasthesistergroupto S. scrofa. S. maderensis was more divergent from these groups. Another lineage contained S. porcus and S. notata. The topology of the MP tree is similar to that of the NJ tree. The pattern and degree of morphological differentiation was not congruent with the genetic differentiation. The Euclidiean distances of morphological data revealed very high morphological divergence between the two families. -
The Echinoderm Fauna of Turkey with New Records from the Levantine Coast of Turkey
Proc. of middle East & North Africa Conf. For Future of Animal Wealth THE ECHINODERM FAUNA OF TURKEY WITH NEW RECORDS FROM THE LEVANTINE COAST OF TURKEY Elif Özgür1, Bayram Öztürk2 and F. Saadet Karakulak2 1Faculty of Fisheries, Akdeniz University, TR-07058 Antalya, Turkey 2İstanbul University, Faculty of Fisheries, Ordu Cad.No.200, 34470 Laleli- Istanbul, Turkey Corresponding author e-mail: [email protected] ABSTRACT The echinoderm fauna of Turkey consists of 80 species (two Crinoidea, 22 Asteroidea, 18 Ophiuroidea, 20 Echinoidea and 18 Holothuroidea). In this study, seven echinoderm species are reported for the first time from the Levantine coast of Turkey. These are, five ophiroid species; Amphipholis squamata, Amphiura chiajei, Amphiura filiformis, Ophiopsila aranea, and Ophiothrix quinquemaculata and two echinoid species; Echinocyamus pusillus and Stylocidaris affinis. Turkey is surrounded by four seas with different hydrographical characteristics and Turkish Straits System (Çanakkale Strait, Marmara Sea and İstanbul Strait) serve both as a biological corridor and barrier between the Aegean and Black Seas. The number of echinoderm species in the coasts of Turkey also varies due to the different biotic environments of these seas. There are 14 echinoderm species reported from the Black Sea, 19 species from the İstanbul Strait, 51 from the Marmara Sea, 71 from the Aegean Sea and 42 from the Levantine coasts of Turkey. Among these species, Asterias rubens, Ophiactis savignyi, Diadema setosum, and Synaptula reciprocans are alien species for the Turkish coasts. Key words: Echinodermata, new records, Levantine Sea, Turkey. Cairo International Covention Center , Egypt , 16 - 18 – October , (2008), pp. 571 - 581 Elif Özgür et al. -
Abundance and Diversity of Decapod Crustaceans in the Deep-Catalan Sea (Western Mediterranean)
JOURNAL OF NATURAL HISTORY, 1992, 26, 1305-1323 Abundance and diversity of decapod crustaceans in the deep-Catalan Sea (Western Mediterranean) J. E. CARTES and F. SARDA Institut de Ciencies del Mar, Passeig National s/n, 08039 Barcelona, Spain (Accepted 7 August 1992) The deep-slope decapod fauna of the Catalan Sea was extensively sampled with an OTSB-14 bottom trawl. A total of 67 bottom tows were taken from 1985 to 1989 at bottom depths ranging from 552 to 2261 m. Species in which abundance decreased with depth were Plesionika acanthonotus, Polycheles typhlops, Calocaris macandreae and Geryon longipes. Highest densities of Acanthephyra eximia, Stereomastis sculpta, and Nematocarcinus exilis were attained at the great est depths studied. Total abundance, biomass and species richness for decapod crustaceans as a whole decreased with depth. Maximum decapod biomass and diversity occurred on the upper-middle slope on soft bottoms in the .Catalan Sea and in all regions for which data were available. In the Catalan Sea, an oligotrophic area, the abundance of decapods as a group seemed to be higher than in north- Atlantic eutrophic regions. In these latter areas, other deep-sea benthic invertebrate groups, particularly ophiuroids, predominate. KEYWORDS: Decapod crustaceans, Mediterranean, abundance, biomass, diversity. Introduction The deep-sea decapod crustacean fauna in the Mediterranean has been only quali tatively studied (Carpine, 1970a; Reyss, 1971; Fredj and Laubier, 1985; Peres, 1985; Abello and Valladares, 1988; Cartes, 1992 and references cited). Data on abundance, biomass and on the dominant species along the deep slope are particularly scarce. The structure of bathyal decapod crustacean populations on the upper slope in the northwestern Mediterranean is relatively well known (Zariquiey Alvarez, 1968; Sarda and Palomera, 1981; Abello et al., 1988) down to a depth of 800 m, with data on species abundance and biomass also available. -
JAHRBUCH DER GEOLOGISCHEN BUNDESANSTALT Jb
JAHRBUCH DER GEOLOGISCHEN BUNDESANSTALT Jb. Geol. B.-A. ISSN 0016–7800 Band 149 Heft 1 S. 61–109 Wien, Juli 2009 A Revision of the Tonnoidea (Caenogastropoda, Gastropoda) from the Miocene Paratethys and their Palaeobiogeographic Implications BERNARD LANDAU*), MATHIAS HARZHAUSER**) & ALAN G. BEU***) 2 Text-Figures, 10 Plates Paratethys Miozän Gastropoda Caenogastropoda Tonnoidea Österreichische Karte 1 : 50.000 Biogeographie Blatt 96 Taxonomie Contents 1. Zusammenfassung . 161 1. Abstract . 162 1. Introduction . 162 2. Geography and Stratigraphy . 162 3. Material . 163 4. Systematics . 163 1. 4.1. Family Tonnidae SUTER, 1913 (1825) . 163 1. 4.2. Family Cassidae LATREILLE, 1825 . 164 1. 4.3. Family Ranellidae J.E. GRAY, 1854 . 170 1. 4.4. Family Bursidae THIELE, 1925 . 175 1. 4.5. Family Personidae J.E. GRAY, 1854 . 179 5. Distribution of Species in Paratethyan Localities . 180 1. 5.1. Diversity versus Stratigraphy . 180 1. 5.2. The North–South Gradient . 181 1. 5.3. Comparison with the Pliocene Tonnoidean Fauna . 181 6. Conclusions . 182 3. Acknowledgements . 182 3. Plates 1–10 . 184 3. References . 104 Revision der Tonnoidea (Caenogastropoda, Gastropoda) aus dem Miozän der Paratethys und paläobiogeographische Folgerungen Zusammenfassung Die im Miozän der Paratethys vertretenen Gastropoden der Überfamilie Tonnoidea werden beschrieben und diskutiert. Insgesamt können 24 Arten nachgewiesen werden. Tonnoidea weisen generell eine ungewöhnliche weite geographische und stratigraphische Verbreitung auf, wie sie bei anderen Gastropoden unbekannt ist. Dementsprechend sind die paratethyalen Arten meist auch in der mediterranen und der atlantischen Bioprovinz vertreten. Einige Arten treten zuerst im mittleren Miozän der Paratethys auf. Insgesamt dokumentiert die Verteilung der tonnoiden Gastropoden in der Parate- thys einen starken klimatischen Einfluss. -
Mollusca, Gastropoda
Contr. Tert. Quatern. Geol. 32(4) 97-132 43 figs Leiden, December 1995 An outline of cassoidean phylogeny (Mollusca, Gastropoda) Frank Riedel Berlin, Germany Riedel, Frank. An outline of cassoidean phylogeny (Mollusca, Gastropoda). — Contr. Tert. Quatern. Geo!., 32(4): 97-132, 43 figs. Leiden, December 1995. The phylogeny of cassoidean gastropods is reviewed, incorporating most of the biological and palaeontological data from the literature. Several characters have been checked personally and some new data are presented and included in the cladistic analysis. The Laubierinioidea, Calyptraeoidea and Capuloidea are used as outgroups. Twenty-three apomorphies are discussed and used to define cassoid relations at the subfamily level. A classification is presented in which only three families are recognised. The Ranellidae contains the subfamilies Bursinae, Cymatiinae and Ranellinae. The Pisanianurinae is removed from the Ranellidae and attributed to the Laubierinioidea.The Cassidae include the Cassinae, Oocorythinae, Phaliinae and Tonninae. The Ranellinae and Oocorythinae are and considered the of their families. The third the both paraphyletic taxa are to represent stem-groups family, Personidae, cannot be subdivided and for anatomical evolved from Cretaceous into subfamilies reasons probably the same Early gastropod ancestor as the Ranellidae. have from Ranellidae the Late Cretaceous. The Cassidae (Oocorythinae) appears to branched off the (Ranellinae) during The first significant radiation of the Ranellidae/Cassidaebranch took place in the Eocene. The Tonninae represents the youngest branch of the phylogenetic tree. Key words — Neomesogastropoda, Cassoidea, ecology, morphology, fossil evidence, systematics. Dr F. Riedei, Freie Universitat Berlin, Institut fiir Palaontologie, MalteserstraBe 74-100, Haus D, D-12249 Berlin, Germany. Contents superfamily, some of them presenting a complete classifi- cation. -
Caenogastropoda
13 Caenogastropoda Winston F. Ponder, Donald J. Colgan, John M. Healy, Alexander Nützel, Luiz R. L. Simone, and Ellen E. Strong Caenogastropods comprise about 60% of living Many caenogastropods are well-known gastropod species and include a large number marine snails and include the Littorinidae (peri- of ecologically and commercially important winkles), Cypraeidae (cowries), Cerithiidae (creep- marine families. They have undergone an ers), Calyptraeidae (slipper limpets), Tonnidae extraordinary adaptive radiation, resulting in (tuns), Cassidae (helmet shells), Ranellidae (tri- considerable morphological, ecological, physi- tons), Strombidae (strombs), Naticidae (moon ological, and behavioral diversity. There is a snails), Muricidae (rock shells, oyster drills, etc.), wide array of often convergent shell morpholo- Volutidae (balers, etc.), Mitridae (miters), Buccin- gies (Figure 13.1), with the typically coiled shell idae (whelks), Terebridae (augers), and Conidae being tall-spired to globose or fl attened, with (cones). There are also well-known freshwater some uncoiled or limpet-like and others with families such as the Viviparidae, Thiaridae, and the shells reduced or, rarely, lost. There are Hydrobiidae and a few terrestrial groups, nota- also considerable modifi cations to the head- bly the Cyclophoroidea. foot and mantle through the group (Figure 13.2) Although there are no reliable estimates and major dietary specializations. It is our aim of named species, living caenogastropods are in this chapter to review the phylogeny of this one of the most diverse metazoan clades. Most group, with emphasis on the areas of expertise families are marine, and many (e.g., Strombidae, of the authors. Cypraeidae, Ovulidae, Cerithiopsidae, Triphori- The fi rst records of undisputed caenogastro- dae, Olividae, Mitridae, Costellariidae, Tereb- pods are from the middle and upper Paleozoic, ridae, Turridae, Conidae) have large numbers and there were signifi cant radiations during the of tropical taxa. -
Th-E- Penaeidea: of -Louisiana - with a Discussion -Oftheir Worl'd Relationships N
TH-E- PENAEIDEA: OF -LOUISIANA - WITH A DISCUSSION -OFTHEIR WORL'D RELATIONSHIPS N BY -MARTIN D. BURKEN-ROAD BULLTIN 'OF THE.,; AM~~ERICAN MUSEU -OF N.ATURAL, HIS RY VOLUME LXVIII, 1934 ARTICLE II -NEW YORK, Deeember 15, 1934 --U-~~~~~~~~~~~~~~~~~~S- ::ro_"A r-~ ~ 4-2~~~~~~~~~U- -" $~~~~~~~~~~y~~~~' ~~~w~--,-'-'A-~~~~~~~~ -"--'A~~~_ ~~~~~~~~~~~~~~~~A~~~~ ~ ~ ~ ~ ~ ~ ~ ~ ~ A -7~~~~~~~~~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~~~~~~~~~~~~~~~~~~~~-- 3,i ~ ~ - ~ - - ~ ---- - -N94-'~~~~~~~~~~~~~~~~~~~~~~~~~~~-' -~~~~~~~~~~~~~~., a ''-A-'-~~~~~~~~~~~~~~~~~~ )-A----"'~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~4 - .-' -A-'~~~~~~~~~~7~A. ~~~~~Nf \ - A U YA--9-A-7~'A 4Y~~ ~ ~ ~ ~ '-- -.-~'A -A''-"- - 59.53, 841 P (76.3) Article II.-THE PENAEIDEA OF LOUISIANA WITH A DISCUSSION OF THEIR WORLD RELATIONSHIPS' BY MARTIN D. BUIRKENROAD2 During two years of exploration of the coastal waters of Louisiana, 1929 to 1931, nine species of Penaeidae and six of Sergestidae were cap- tured. Of the Penaeidae, one (Solenocera vioscai) has not been pre- viously described, and two others, Parapenaeus longirostris (Lucas) and Trachypeneus similis (Smith), are additions to the five that have been reported from the region by previous workers. These five species, Penaeus setiferus (Linnaeus), Penaeus brasiliensis Latreille, Trachy- peneus constrictus (Stimpson) (which is here replaced by a valid record, since the former one refers to T. similis), Xiphopeneus kroyeri (Heller), and Eusicyonia dorsalis (Kingsley), are represented in the material to be discussed. The ninth species taken is an aristaeine mysis, probably Gennadas elegans (Smith) which occurred in the open gulf outside of the strictly littoral zone. Of the six Sergestidae, only two (Acetes carolinae Hansen and Lucifer faxoni Borradaile) were found within the littoral area. Preadults of four species of Sergestes-a female of S. atlanticus H.