Contents -- List of Plates -- List of Plates -- List of Plates -- Foreword: 50- Year Update of Bulletin 89 -- 1 An Introduction to Gulf of Mexico Biodiversity Assessment -- 2 Prokaryotic Microbes (Archaea and Bacteria, Excluding Cyanobacteria) of the Gulf of Mexico -- 3 Benthic Cyanoprokaryota (Cyanobacteria) of the Gulf of Mexico -- 4 Ciliated Protists (Ciliophora) of the Gulf of Mexico -- 5 Free-Living, Saprobic, Filamentous Fungi of the Gulf of Mexico -- 6 Foraminifera of the Gulf of Mexico -- 7 Dinoflagellates (Dinoflagellata) of the Gulf of Mexico -- 8 Diatoms (Bacillariophyta) of the Gulf of Mexico -- 9 Seaweeds of the Gulf of Mexico -- 10 Plants (Embryophyta) of the Gulf of Mexico -- 11 Sponges (Porifera) of the Gulf of Mexico -- 12 Cnidaria: Introduction -- 13 Octocorallia (Cnidaria) of the Gulf of Mexico -- 14 Scleractinia (Cnidaria) of the Gulf of Mexico -- 15 Actiniaria, Corallimorpharia, and Zoanthidea (Cnidaria) of the Gulf of Mexico -- 16 Antipatharia (Cnidaria) of the Gulf of Mexico -- 17 Ceriantharia (Cnidaria) of the Gulf of Mexico -- 18 Medusozoans (Cnidaria: Cubozoa, Scyphozoa, and Hydrozoa) of the Gulf of Mexico -- 19 Hydroids (Cnidaria: Hydrozoa) of the Gulf of Mexico -- 20 Siphonophorae (Cnidaria) of the Gulf of Mexico -- 21 Ctenophora of the Gulf of Mexico -- 22 Turbellarians (Acoelomorpha and Free-Living Platyhelminthes) of the Gulf of Mexico -- 23 Trematoda (Platyhelminthes) of the Gulf of Mexico -- 24 Cestoda (Platyhelminthes) of the Gulf of Mexico -- 25 Dicyemida of the Gulf of Mexico, with Comments on the Orthonectida -- 26 Gnathostomulida of the Gulf of Mexico -- 27 Rotifera of the Gulf of Mexico -- 28 Acanthocephala of the Gulf of Mexico -- 29 Nemertea of the Gulf of Mexico -- 30 Mollusca: Introduction -- 31 Aplacophora (Mollusca) of the Gulf of Mexico -- 32 Polyplacophora (Mollusca) of the Gulf of Mexico.

33 Gastropoda (Mollusca) of the Gulf of Mexico -- 34 Cephalopoda (Mollusca) of the Gulf of Mexico -- 35 Bivalvia (Mollusca) of the Gulf of Mexico -- 36 Scaphopoda (Mollusca) of the Gulf of Mexico -- 37 Polychaeta (Annelida) of the Gulf of Mexico -- 38 Marine Leeches (Hirudinida) of the Gulf of Mexico -- 39 Vestimentifera and Pogonophora (Annelida) of the Gulf of Mexico -- 40 Echiura of the Gulf of Mexico -- 41 Sipuncula of the Gulf of Mexico -- 42 Tardigrada of the Gulf of Mexico -- 43 Pycnogonida and Xiphosura (Cheliceriformes) of the Gulf of Mexico -- 44 Cephalocarida and Mystacocarida (Crustacea) of the Gulf of Mexico -- Color Gallery -- 45 Cirripedia (Crustacea) of the Gulf of Mexico -- 46 Branchiura (Crustacea) of the Gulf of Mexico -- 47 Free-Living Copepoda (Crustacea) of the Gulf of Mexico -- 48 Myodocopan Ostracoda (Crustacea) of the Gulf of Mexico -- 49 Podocopan Ostracoda (Crustacea) of the Gulf of Mexico -- 50 Leptostraca (Crustacea) of the Gulf of Mexico -- 51 Stomatopoda (Crustacea) of the Gulf of Mexico -- 52 Lophogastrida (Crustacea) of the Gulf of Mexico -- 53 Mysida (Crustacea) of the Gulf of Mexico -- 54 Amphipoda (Crustacea) of the Gulf of Mexico -- 55 Isopoda (Crustacea) of the Gulf of Mexico -- 56 Tanaidacea (Crustacea) of the Gulf of Mexico -- 57 Cumacea (Crustacea) of the Gulf of Mexico -- 58 Euphausiacea (Crustacea) of the Gulf of Mexico -- 59 Decapoda (Crustacea) of the Gulf of Mexico, with Comments on the Amphionidacea -- 60 Gastrotricha of the Gulf of Mexico -- 61 Free-Living Marine Nematoda of the Gulf of Mexico -- 62 Priapulida of the Gulf of Mexico -- 63 Loricifera of the Gulf of Mexico -- 64 Kinorhyncha of the Gulf of Mexico -- 65 Phoronida of the Gulf of Mexico -- 66 Brachiopoda of the Gulf of Mexico -- 67 Entoprocta of the Gulf of Mexico -- 68 Bryozoans (Ectoprocta) of the Gulf of Mexico.

69 Planktonic Chaetognatha of the Gulf of Mexico -- 70 Hemichordata of the Gulf of Mexico -- 71 Echinodermata of the Gulf of Mexico -- 72 Cephalochordata of the Gulf of Mexico -- 74 Appendicularia (Urochordata) of the Gulf of Mexico -- 73 Tunicata (Urochordata) of the Gulf of Mexico -- 75 Fishes (Vertebrata: Pisces) of the Gulf of Mexico -- 76 Reptiles (Vertebrata: Reptilia) of the Gulf of Mexico -- 77 Birds (Vertebrata: Aves) of the Gulf of Mexico -- 78 Mammals (Vertebrata: Mammalia) of the Gulf of Mexico -- 79 Population Genetics and Biogeography of the Gulf of Mexico -- Illustration Credits -- Contributors -- Index.