Illinois Natural History Survey - University of Illinois

List of Illinois Taxa

Kingdom Monera (112+ species)

Division Schizophyta: bacteria (number of species unknown)
Division Cyanophyta: blue-green algae (112 species)

Kingdom Protista (1,406+ species) Division Protozoa: (number of species unknown)

Division Euglenophyta: euglenoids (30 species)
Division Chrysophyta: diatoms and golden brown algae (440 species)
Division Pyrrophyta: fire algae (20 species)
Division Chlorophyta: green algae (507 species)
Division Phaeophyta: brown algae (0 species)
Division Rhodophyta: red algae (5 species)
Division Myxomycota: plasmodial slime molds (400 species)
Division Acrasiomycota: cellular slime molds (2 or 3 species)
Division Plasmodiophoromycota: (1 species)

Kingdom Fungi (~ 20,000 species)

Division Chytridiomycota: chytrids (~ 300 species)
Division Oomycota: water molds (~ 300 species)
Division Zygomycota: bread molds (~ 400 species)
Division Ascomycota: sac fungi (~ 9,000 species including 500 species of lichens)
Division Basidiomycota: club fungi (~ 5,000 species)
Division Deuteromycota: fungi imperfecti (~ 5,000 species)

Kingdom Plantae (2,574 species)

Division Bryophyta

Class Anthocerota: hornworts (3 species)
Class Hepaticae: liverworts (118 species)
Class Musci: mosses (385 species including 2 extirpated species)

Division Lycodiophyta: club mosses, quillworts, and spike mosses (12 species including 3 endangered species of clubmosses and 1 extirpated species of quillwort)

Division Equisetophyta: horsetails (12 species including 3 endangered and 1 extirpated species)

Division Filicophyta: ferns (75 species including 11 endangered, 3 threatened, and 2 extirpated species)

Division Coniferophyta: conifers (14 species, including 4 endangered and 3 threatened species)

Division Anthophyta: monocots and dicots (1,955 species including 275 endangered, 54 threatened, 53 extirpated, 1 extinct, and 1 extirpated but reintroduced species)

Kingdom Animalia (29,662+ species)

Phylum Porifera: sponges (14 species)

Phylum Cnidaria: polyps and jellyfish

Class Hydrozoa: hydra and freshwater jellyfish (10 species of hydra and 1 species of freshwater jellyfish)

Phylum Platyhelminthes: flatworms (400 species)
Phylum Nemertea: ribbon worms (1 species)
Phylum Nematoda: nematodes (number of species unknown)
Phylum Nematomorpha: horsehair worms (2 species)
Phylum Acanthocephala: spiny-headed worms (27 species including 1 species found in the endangered greater prairie-chicken)
Phylum Gastrotricha (60 species)
Phylum Rotifera: rotifers (150?175 species)
Phylum Entoprocta (1 species)

Phylum Annelida: segmented worms

Class Aphanoneura: suction-feeding worms(3 species)
Class Branchiobdellae: crayfish worms (9 species)
Class Oligochaeta: "earthworms" (43 terrestrial, 83 aquatic species)
Class Hirudinea: leeches (32 species)

Phylum Arthropoda

Class Chelicerata (10,598+ species)

Subclass Arachnida

Order Scorpiones: scorpions (1 species)
Order Araneae: spiders (530 species)
Order Pseudoscorpionida: pseudoscorpions (28 species)
Order Opiliones: daddy long-legs (19 species)
Order Acari: mites and ticks (20 species of ticks and ~10,000 species of mites)

Class Myriapoda (74 species)

Subclass Diplopoda: millipedes (29 species)
Subclass Pauropoda: pauropods (5 species)
Subclass Chilopoda: centipedes (37 species)
Subclass Symphyla: symphylans (3 species)

Class Insecta (~17,000 species)

Subclass Myrientomata

Order Proturans: proturans (6 species)

Subclass Oligoentomata

Order Collembola: springtails (73 species)

Subclass Diplurata

Order Diplura: diplurans (6-?10 species)

Subclass Zygoentomata

Order Thysanura: silverfish (6+ species)

Subclass Pterygota

Order Ephemeroptera: mayflies (126 species)
Order Odonata: dragonflies (98 species) and damselflies (44 species)
Order Blattodea: cockroaches (9 species)
Order Mantodea: mantids (1 species)
Order Isoptera: termites (5 species)
Order Plecoptera: stoneflies (57 species)
Order Orthoptera: grasshoppers, crickets, and katydids (157 species)
Order Dermaptera: earwigs (3 species)
Order Phasmida: walking sticks (5 species)
Order Zoraptera: zorapterans (1 species)
Order Psocoptera: book and bark lice (91 species)
Order Hemiptera: true bugs (910 species)
Order Thysanoptera: thrips (200 species)
Order Anoplura: sucking lice (18 native and 19 nonnative [from domestic animals and man] species)
Order Mallophaga: biting lice (280 species including 1 extinct species that occurred on the passenger pigeon)
Order Homoptera: plant bugs (1,485 species)
Order Strepsiptera: twisted-wing insects (15?20 species)
Order Coleoptera: beetles (5,000 species)
Order Neuroptera: lacewings, antlions, alderflies (45 species including 1 extirpated species)
Order Hymenoptera: bees, ants, wasps (2,000+ species)
Order Mecoptera: scorpionflies (18 species)
Order Siphonaptera: fleas (33 species including 1 species that occurs on the endangered Eastern wood rat)
Order Diptera: true flies, mosquitoes, and gnats (4,100 species)
Order Trichoptera: caddisflies (184 species)
Order Lepidoptera: butterflies and moths (2,000 species including 1 endangered, 2 threatened, and 5 extirpated species)

Subphylum Crustacea

Class Branchiopoda (52 species)

Order Anostraca: fairy shrimp (4 species)
Order Cladocera: water fleas (~43 species)
Order Conchostraca: clam shrimp (5 species)

Class Maxillopoda (84 species)

Subclass Ostracoda: seed shrimp (53 species)
Subclass Copepoda (21 species)
Subclass Branchiura: fish lice (10 species)

Class Malacostraca (71 species)

Order Decapoda: crayfish (23 species including 4 endangered and 2 extirpated species)
Order Isopoda: pillbugs (28 species including 1 endangered species)
Order Amphipoda: scuds (19 species including 5 endangered and 1 threatened species)
Order Musida: opossum shrimp (1 species)

Phylum Pentastomida: tongue worms (no species found in native fauna)
Phylum Tardigrada: water bears (13 species)

Phylum Mollusca

Class Gastropoda: snails (170 species including 1 endangered species)
Class Bivalvia: mussels and clams (104 species including 29 endangered, 4 threatened, 16 extirpated, and 4 extinct species)

Phylum Ectoprocta (9 species)

Phylum Chordata

Subphylum Vertebrata

Class Cephalaspidomorphi: lampreys and jawless fish (6 species including 1 endangered and 1 threatened species)
Class Osteichthyes: boney fishes (181 species including 12 endangered, 14 threatened, and 12 extirpated species)
Class Amphibia: amphibians (41 species: 3 endangered, 2 threatened)
Class Reptilia: reptiles (60 species: 6 endangered, 7 threatened, 1 presumed extirpated)
Class Aves: birds (403 species: 204 confirmed breeding, 151 migrant/vagrants, 48 very rare vagrants including 33 endangered, 9 threatened, 5 watch list, 9 extirpated (3 re-introduced), and 2 extinct species)
Class Mammalia: mammals (68 species: 6 endangered, 3 threatened, 9 extirpated (2 re-introduced), 2 introduced)

Total number of species: 53,754+

Total number of extirpated species: 114

Total number of threatened and endangered species: 503


This list is based on the April 1991 Symposium Proceedings: Our Living Heritage
Appendix One: Native Illinois Species and Related Bibliography
Susan L. Post
INHS Reprint Series No. R1174

Information last updated 3/3/1997; Page last updated 9/23/2009

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