The data in the 2010 Annual Checklist have been provided by 77 databases. Of these, 10 are new to the 2010 edition and 12 have been updated over the past year. Most datasets include one or more global species database sectors (GSDs), i.e. datasets being developed to cover all of the world's species in a particular group of organisms. A few datasets provide regional information for groups not yet covered globally. The datasets result from collaboration and editing by many expert taxonomists, whose names are found in the datasets themselves. A brief summary is listed below giving: database short and full names; home page on the web; the author(s) or editor(s); organisation; the group for which data are provided, preceded by its higher classification; and the number of species and infraspecific taxa included in this Annual Checklist.

Source database English name of the group ascending Species
Species 2000 additional Common Names for the Catalogue of Life 0
World Checklist of Selected Plant Families 97 families of seed plants, including almost complete monocots 93,954
ASF: Aphid Species File Aphids and allied groups 4,713
GCC: Global Compositae Checklist NEW! Aster or sunflower family 25,952
BIOS: Bacteriology Insight Orienting System Bacteria, archaea 6,749
ITIS Bees: World Bee Checklist Bees 20,455
LecyPages: The Lecythidaceae Pages Brazil nut family 311
WoRMS Ophiuroidea: World Ophiuroidea Database Brittle stars and basket stars 2,152
LepIndex: The Global Lepidoptera Names Index Butterflies and moths 243,006
ChiloBase: A World Catalogue of Centipedes (Chilopoda) for the web Centipedes 3,146
UCD: Universal Chalcidoidea Database Chalcidoid wasps 19,847
Tineidae NHM: Global Taxonomic Database of Tineidae (Lepidoptera) Clothes-moths 2,340
BSF: Blattodea Species File Online Cockroaches 4,564
Conifer Database Conifers 631
CCW: Catalogue of Craneflies of the World Craneflies 14,834
RJB Geranium: Geranium Taxonomic Information System Cranesbills, geraniums 350
Brassicaceae species checklist and database NEW! Crucifers, mustard or cabbage family 3,778
WoRMS Cumacea: Cumacea World Database Cumaceans 1,286
AnnonBase: World Species List of Annonaceae Custard apples 2,236
IOPI Global Plant Checklist Cycads and 6 families of seed plants 24,049
SysMyr: Systematic Myriapod Database Diplopods, pauropods and symphylans 10,107
Odonata: Catalogue of the Odonata of the World Dragonflies and damselflies 5,747
FishBase Fishes 31,186
Parhost: World Database of Fleas Fleas 2,047
BDWD: BioSystematic Database of World Diptera Flies, mosquitoes, bots, midges and gnats 137,991
WoRMS Proseriata and Kalyptorhynchia: World database of Proseriata & Kalyptorhynchia Freeliving flatworms 732
FWCrabs: Neotropical Freshwater Crabs Catalogue NEW! Freshwater crabs 46
COOL: Cercopoidea Organised On Line Froghoppers 2,364
Trichomycetes Fungi associated with Arthropods 289
Xylariaceae: Home of the Xylariaceae Fungi associated with dead wood 270
Species Fungorum Fungi; protozoan fungi; chromistan fungi 40,468
Glomeromycota Glomeromycota 164
World Gracillariidae: Global Taxonomic Database of Gracillariidae Gracillariid moths 1,841
OSF: Orthoptera Species File Online Grasshoppers, locusts, katydids, crickets 23,844
ELPT: Early Land Plants Today - Uniting Taxonomy, Nomenclature & Geography (liverworts and hornworts NEW! Hornworts and liverworts 676
Taxapad Ichneumonoidea NEW! Ichneumonid and braconid wasps 42,372
Psyl'list: Psylloidea database Jumping plant lice 2,107
SalticidDB: Global Species Database of Salticidae (Araneae) NEW! Jumping spiders 4,845
ETI WBD: World Biodiversity Database (Euphausiacea) Krill 86
LDL Neuropterida Species of the World Lacewings, antlions, owlflies, fishflies, dobsonflies & snakeflies 6,256
WoRMS Brachiopoda & Phoronida: Brachiopoda & Phoronida World Databases Lamp-shells and horseshoe worms 422
ILDIS World Database of Legumes Legumes 19,949
TITAN: Cerambycidae database Longhorn beetles, timber beetles 31,408
URMO: UNESCO-IOC Register of Marine Organisms Many groups of marine invertebrates and chordates 16,899
MBB: Moss Bug Base NEW! Moss bugs 32
MOST: Moss TROPICOS Database Mosses 13,367
Solanaceae Source Nightshade genus 1,082
Mites GSDs: OlogamasidBase Ologamasid mites 446
CIPA: Computer Aided Identification of Phlebotomine sandflies of Americas Phlebotomine sandflies 402
Mites GSDs: PhytoseiidBase NEW! Phytoseiid mites 2,186
FLOW: Fulgoromorpha Lists On the WEB Planthoppers 10,672
MSF: Mantodea Species File Online Praying mantids 2,373
TIGR Reptile Database Reptiles 8,656
Mites GSDs: RhodacaridBase Rhodacarid mites 145
Rotifera Database Rotifers 1,996
ScaleNet: Systematic Database of the Scale Insects of the World Scale insects 7,090
Scarabs: World Scarabaeidae Database Scarab beetles 17,844
Hexacorals: Hexacorallians of the World Sea anemones 738
AlgaeBase Seaweeds and other algae, including blue-green algae (cyanobacteria) 31,028 Slime moulds 1,034
AFD: Australian Faunal Directory (Pulmonata) Snails and slugs (some groups) 947
SpidCat: The World Spider Catalog Spiders 34,245
WoRMS Porifera: World Porifera Database Sponges 8,215
PSF: Phasmida Species File Stick and leaf insects 2,946
PlecopteraSF: Plecoptera Species File Online Stoneflies 3,181
Droseraceae Database Sundew family 182
GloBIS (GART): Global Butterfly Information System Swallowtails and whites 1,635
Rhytismatales Tar-spot fungi 439
Mites GSDs: TenuipalpidBase NEW! Tenuipalpid mites 887
TicksBase Ticks 869
Phyllachorales Tropical tar-spot fungi 1,304
NZIB: New Zealand Inventory of Biodiversity NEW! Various animal taxa from New Zealand 5,478
ZOBODAT: Zoological-Botanical Database (Vespoidea) Vespid wasps 5,972
ICTV/MSL: International Committee on Taxonomy of Viruses / Master Species List Viruses and subviral agents 2,083
LHD: Lacistemataceae Holistic Database Waits Numi plant family 28
WTaxa: Electronic Catalogue of Weevil names (Curculionoidea) Weevils 80,728
ITIS: The Integrated Taxonomic Information System Wide range of taxa in all kingdoms 152,260
Zygomycetes Zygote fungi 776