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- Species (63,398)
Taxonomic rank
- Species (41,253)
- Genus (13,745)
- Family (2,947)
- Subspecies (1,225)
- Subfamily (867)
- Subgenus (522)
- Superfamily (501)
- Order (444)
- Tribe (400)
- species aggregate (316)
- breed (233)
- Suborder (176)
- Form (136)
- Class (117)
- Subclass (69)
- Infraorder (68)
- Variety (48)
- species pro parte (44)
- species sensu lato (40)
- Phylum (38)
- species hybrid (36)
- Superorder (25)
- Infraclass (22)
- Cohort (17)
- Subphylum (15)
- Section (13)
- functional group (10)
- parvorder (10)
- Species Group (9)
- supercohort (9)
- Series (7)
- subcohort (7)
- Superclass (6)
- abberation (5)
- generic hybrid (3)
- Subspecies Aggregate (3)
- Division (2)
- genus aggregate (2)
- Subsection (2)
- subspecies hybrid (2)
- Subtribe (2)
- Cultivar (1)
- subterclass (1)
Lifeforms
- Insects (34,061)
- Crustaceans (6,155)
- Worms (5,280)
- Molluscs (3,777)
- Birds (1,581)
- Fishes (1,425)
- Spiders and allies (1,311)
- Mammals (361)
- Myriapods (314)
- Reptiles (31)
- Amphibians (24)
Taxon group
- insect - hymenopteran (10,161)
- insect - true fly (Diptera) (9,268)
- crustacean (6,185)
- insect - beetle (Coleoptera) (5,699)
- insect - moth (4,418)
- mollusc (3,802)
- acarine (Acari) (3,718)
- insect - true bug (Hemiptera) (2,695)
- annelid (2,182)
- bird (1,726)
- roundworm (Nematoda) (1,361)
- bony fish (Actinopterygii) (1,226)
- coelenterate (=cnidarian) (1,078)
- spider (Araneae) (1,043)
- rotifer (740)
- sponge (Porifera) (690)
- trematode (681)
- bryozoan (626)
- springtail (Collembola) (544)
- tapeworm (Cestoda) (467)
- echinoderm (398)
- insect - caddis fly (Trichoptera) (315)
- terrestrial mammal (303)
- gastrotrich (282)
- flatworm (Turbellaria) (276)
- insect - butterfly (267)
- insect - thrips (Thysanoptera) (250)
- tunicate (Urochordata) (226)
- cartilagenous fish (Chondrichthyes) (184)
- insect - booklouse (Psocoptera) (172)
- ribbon worm (Nemertea) (161)
- millipede (159)
- insect - dragonfly (Odonata) (136)
- insect - flea (Siphonaptera) (122)
- sea spider (Pycnogonida) (111)
- insect - lacewing (Neuroptera) (107)
- insect - orthopteran (103)
- centipede (101)
- waterbear (Tardigrada) (99)
- insect - mayfly (Ephemeroptera) (90)
- marine mammal (90)
- lampshell (Brachiopoda) (86)
- insect - stonefly (Plecoptera) (67)
- harvestman (Opiliones) (66)
- entoproct (63)
- mud dragon (Kinorhyncha) (59)
- false scorpion (Pseudoscorpiones) (57)
- insect - louse (Phthiraptera) (55)
- insect - cockroach (Dictyoptera) (52)
- peanut worm (Sipuncula) (46)
- arrow worm (Chaetognatha) (42)
- mesozoan (38)
- acorn worm (Hemichordata) (33)
- pauropod (33)
- reptile (33)
- gnathostomulid (30)
- insect - stylops (Strepsiptera) (28)
- amphibian (25)
- proturan (22)
- symphylan (22)
- spoon worm (Echiura) (21)
- comb jelly (Ctenophora) (20)
- insect - earwig (Dermaptera) (20)
- unassigned (20)
- hairworm (Nematomorpha) (19)
- jawless fish (Agnatha) (18)
- beardworm (Pogonophora) (17)
- insect - stick insect (Phasmida) (15)
- two-tailed bristletail (Diplura) (15)
- monogenean (14)
- priapulid (14)
- insect - bristletail (Archaeognatha) (12)
- insect - snakefly (Raphidioptera) (11)
- thorny-headed worm (Acanthocephala) (10)
- insect - scorpion fly (Mecoptera) (9)
- loriciferan (9)
- horseshoe worm (Phoronida) (7)
- cycliophoran (6)
- insect - alderfly (Megaloptera) (6)
- insect - silverfish (Thysanura) (6)
- lancelet (Cephalochordata) (5)
- insect - mantis (Mantodea) (4)
- undetermined (1)
Habitat
- terrestrial (44,371)
- marine (18,062)
- freshwater (5,561)
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Aaptos
Genus, Sponge (Porifera), Marine
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Aaptos simplex
Species, Sponge (Porifera), Marine
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Abacarus
Genus, Acarine (Acari), Terrestrial
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Abacarus acutatus
Species, Acarine (Acari), Terrestrial
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Abacarus hystrix
Species, Acarine (Acari), Terrestrial
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Abacot Ranger Duck
Breed, Bird
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Abarenicola
Genus, Annelid, Marine
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Abarenicola claparedi
Species, Annelid, Marine
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Abax
Genus, Insect - beetle (Coleoptera), Terrestrial
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Abax parallelepipedus
Species, Insect - beetle (Coleoptera), Terrestrial
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Abdera
Genus, Insect - beetle (Coleoptera), Terrestrial
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Abdera affinis
Species, Insect - beetle (Coleoptera), Terrestrial
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Abdera biflexuosa
Species, Insect - beetle (Coleoptera), Terrestrial
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Abdera flexuosa
Species, Insect - beetle (Coleoptera), Terrestrial
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Abdera quadrifasciata
Species, Insect - beetle (Coleoptera), Terrestrial
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Aberdeen Angus Cattle
Breed, Terrestrial mammal, Terrestrial
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Aberdeen Angus Cattle (Original Population)
Breed, Terrestrial mammal, Terrestrial
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Aberranta
Genus, Annelid, Marine
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Aberranta sp.
Species, Annelid, Marine
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Aberrantidae
Family, Annelid, Marine