When [ teach my undergraduate course in these animals belong together, and we nowlearn that Crustacea at the University of Copenhagen [always they may even encompass the speciose insects. With or tell my students: " Now, if on reading through the without insects the Crustacea are therefore unquestion­ chapter on Crustacea you wonder, what could pos­ ably one of the most important animal groups. Is this sibly be said in common about these animals, you why we study them? I think not. Our fascination with havegot it exactly right! Indeed, there is next to noth­ Crustacea is even deeper rooted and not easily ana­ ing that unite them". Crustaceans range in size from lyzed. But one thing is important to me in this context. much below millimeter size to the giant king crabs; As Ibrowse through aU the papers in this book it brings in morphology from the almost stereotyped segment up the memoryofthe highlyrewarding Summer Meet­ repetition ofthe Remipedia to animals with a highly The Crustacean Society held in 2000 in Puerto ing of diverse array of appendages such as the Decapoda; Vallarta, Mexico, where I had the privilege to serve as in life form from suspension feeding anostracans to its president.

Physiology. Seasonal Rhythm of Serotonin Content in the Crayfish Eyestalk; G. Calderón-Rosete, et al. Brain Electrical Signals in Unrestrained Crayfish; F. Ramón, et al. Diel Activity Rhythm in Callinectes Ornatus Ordway, 1863 and Callinectes Danae Smith, 1869 (Brachyura, Portunidae) under Laboratory Conditions; A.L.D. Reigada. Ultrastructural and Biochemical Studies of the Branchiostegite of the Bimodal Breathing Crab Chasmagnathus Granulata Dana, 1851; J. Halperin, et al. Polyclonal Antisera Against Estuarine Crustacean Vitellins: a Molecular Approach to Reproductive Endocrinology and Toxicology; S.R. Tuberty, et al. Cytoarchitecture of the Hepatopancreas of Three Species of Crabs from Mar Chiquita Lagoon, Argentina; E. Cuartas, A.M. Petriella. Acclimation of Adult Males of Litopenaeus Setiferus Exposed as 27 °C and 31 °C: Bioenergetic Balance; A. Sánchez, et al. Evaluation of Leguminous Seed Meals (Rynchosia Minima and Cajanus Cajan) as Plant Protein Sources in Diets for Juvenile Litopenaeus Vannamei; H. Cabanillas-Beltrán, et al. Histological Alterations in Hepatopancreas of Farfantepenaeus Aztecus Caused by the Cestode Gilquinia Sp. in Tamiahua Lagoon, Veracruz, Mexico; J.L. Bortolini-Rosales, M. del Pilar Torres-García. Histological Alterations in Macrobrachium Panamensis Caused by Probopyrus Sp.; M. del Pilar Torres-García, J.L. Bortolini-Rosales. Hepatopancreas Structure of Palaemonetes Argentinus (Decapoda, Caridea) Fed Different Levels of Dietary Cholesterol; A.C. Díz, et al. Comparative Evaluation of Different Animal Protein Source in Juveniles of Pleoticus Muelleri (Crustacea, Penaeoidea); A.C. Díaz, J.L. Fenucci. Effect of Different Dietary Arginine and Lysine Levels for Argentine Prawn Artemesia Longinaris Bate (Crustacea, Decapoda, Penaeidea); R. Romanos Mangialardo, J.L. Fenucci. Vitamin E Requirement of the Prawn Artemesia Longinaris (Decapoda, Penaeidae); A.V. Fernández Gimenez, J.L. Fenucci. Ecology. Distribution and Abundance of Diacyclops Sp. (Crustacea: Copepoda) in Grabriel Cave, Oaxaca, Mexico; J. Cruz-Hernández, et al. Distribution and Ecology of Isopods (Crustacea: Peracarida: Isopoda) of the Pacific Coast of Mexico; Ma. del Carmen Espinosa-Pérez, M.E. Hendrickx. Abundance and Distribution of Commensal Amphipods from Common Marine Sponges of Southeast Florida; S.E. Crowe, J.D. Thomas. Population Structure of the Macrobenthic Amphipod Hyalelia Azteca Saussure (Crustacea: Peracarida) on the Littoral Zone of Six Crater Lakes; J. Alcocer, et al. Composition and Abundance of Shrimp Species (Penaeidea and Caridea) in Fortaleza Bay, Ubatuba, São Paulo, Brazil; A. Fransozo, et al. Population Study of Macrobrachium Tenellum (Smith 1871) In Coyucade de Benítez Lagoon, Guerrero, Mexico; G. Signoret, D. Brailovsky. Gastropod Shells or Gastropod Tubes? Shelter Choice in the Hermit Crab Calcinus Verrilli; L.J. Rodrigues, et al. Hermit Crab Fauna from the Infralittoral Zone of Anchieta Island (Ubatuba, Brazil); F.L.M. Mantelatto, R.B. Garcia. Breeding Season of the Hermit Crab Petrochirus Diogenes (Anomura: Diogenidae) in the North Coast of São Paulo State, Brazil; G. Bertini, A. Fransozo. Distribution and Abundance of the Family Calappidae Off the Coast of Jalisco and Colima, Mexico; J. Arciniega-Flores, V. Landa-Jaime. Sexual Maturity of Eurytium Limosum (Say, 1818) from a Subtropical Mangrove in Brazil; F. Jordão, M.L. Negreiros-Fransozo. Panopeid Crabs (Crustacea: Brachyura: Panopeidae) Associated with Prop Roots of Rhizophora Mangle L. in a Tropical Coastal Lagoon of the Se Gulf of California, Mexico; J. Salgado-Barragán, M.E. Hendrickx. Daily Rhythm of Feeding Activity of the Freshwater Crab Dilocarcinus Pagei Pagei in the Rio Pilcomayo National Park, Formosa, Argentina; V. Williner, P.A. Collins. Population Structure of the Freshwater Crab Trichodactylus Fluviatilis Latreille, 1828 (Decapoda, Trichodactylidae) in Ubatuba, Northern Coast of Sao Paulo State, Brazil; D. Trigueirinho Alarcon, et al. Size Variation in the Grapsid Crab Aratus Pisonii (H. Milne-Edwards, 1837) Among Populations of Different Subtropical Mangroves; M.L. Negreiros-Fransozo. Morphometric Study of the Ghost Crab Ocypode Quadrata (Fabricius, 1887) (Brachyura, Ocypodidae) from Ubatuba, São Paulo, Brazil; A. Fransozo, et al. Shallow-Water Benthic Decapod Crustaceans of Chankanaab Park, Cozumel Island, Mexico; P. Briones-Fourzán, E. Lozano-Álvarez. Symbiosis Between Portunus Spinimanus (Decapoda, Portunidae) and Octolasmis Lowei (Thoracica, Poecilasmatidae) from Ubatuba, Sao Paulo, Brazil; S. Santos. Conservation and Biodiversity. Habitat Specialization and its Relation to Conservation Policy in Crustacea; M.L. Reaka-Kudla. Temporary Water Crustaceans: Biodiversity and Habitat Loss; D. Dudley Williams. Distribution of Continental Shelf Decapod Crustaceans Along the American Pacific Coast; E.E. Boschi. Distribution of Intertidal Non-Brachyuran Decapods from the Gulf of California Islands and its Biogeographical Implications; J.L. Villalobos, F. Alvarez. Conservation of Continental Copepod Crustaceans; J.W. Reid, et al. Ostracoda (Crustacea) from the Lowland Floodplain of the River Pripyat; L. Nagorskaya, J. de Jonge. Effects of Abandoned Mine Drainage on Crayfish Distribution Along a PH Gradient; B.A. Dillon, K.T. Lee. Large Freshwater Branchiopods in Austria: Diversity, Threats and Conservational Status; E. Eder, W. Hödl. Systematics and Evolution. Microsatellites in Shrimp Species; J.R. Scarbrough, et al. A Scenario for the Evolution of the Rhizocephala; H. Glenner, J. Høeg. Morphological Variation in the Crayfish Cambarellus (Cambarellus) Montezumae (Decapoda: Cambaridae); Y. Rojas, et al. Phylogenetic Relationships in Some Species of the Genus Macrobrachium Based on Nucleotide Sequences of the Mitochondrial Gene Citochrome Oxidase; G. Pereira, et al. The First Two Larval Stages of Two Freshwater Shrimps Genus Macrobrachium (Decapoda, Palaemonidae) Reared in the Laboratory, with a Discussion on the Significance of Abbreviated Development for the Radiation of the Genus; G. Pereira, J.V. García. A New Species of Leidya Cornalia and Panceri, 1861, and the First Record of the Genus Lobocepon Nobili, 1905, Both from the Eastern Pacific Ocean, with a Review of the Parasites of Grapsid Crabs Worldwide (Isopoda, Bopyridae, Ioninae); J.C. Markham. Index.