The following is a list of tautonyms: zoological names of species consisting of two identical words (the generic name and the specific name have the same spelling). Such names are allowed in zoology, but not in botany, where the two parts of the name of a species must differ (though differences as small as one letter are permitted, as in cumin, Cuminum cyminum).
Mammals
thumb|right|[[Gazella gazella]]
thumb|right|[[Indri indri — indri]]
thumb|right|[[Myotis myotis]]
thumb|right|[[Vulpes vulpes]]
Birds
thumb|right|[[Coccothraustes coccothraustes]]
thumb|right|[[Ensifera ensifera]]
thumb|right|[[Himantopus himantopus]]
thumb|right|[[Lagopus lagopus]]
thumb|right|[[Milvus milvus]]
thumb|right|[[Nycticorax nycticorax]]
thumb|right|[[Vanellus vanellus]]
Reptiles
thumb|right|[[Naja naja]]
- Agama agama <small>(Linnaeus, 1758)</small> — rainbow agama
- Ameiva ameiva <small>(Linnaeus, 1758)</small> — giant ameiva
- Basiliscus basiliscus <small>(Linnaeus, 1758)</small> — common basilisk
- Calotes calotes <small>(Linnaeus, 1758)</small> — common green forest lizard
- Caretta caretta <small>(Linnaeus, 1758)</small> — loggerhead sea turtle
- Cerastes cerastes <small>(Linnaeus, 1758)</small> — desert horned viper
- Chalcides chalcides <small>(Linnaeus, 1758)</small> — Italian three-toed skink
- Clelia clelia <small>(Daudin, 1803)</small> — mussurana
- Cordylus cordylus <small>(Linnaeus, 1758)</small> — Cape girdled lizard
- Enhydris enhydris <small>(Schneider, 1799)</small> — rainbow water snake
- Hypnale hypnale <small>(Merrem, 1820)</small> — hump-nosed viper
- Iguana iguana <small>(Linnaeus, 1758)</small> — green iguana, common iguana
- Naja naja <small>(Linnaeus, 1758)</small> — Indian cobra
- Natrix natrix <small>(Linnaeus, 1758)</small> — grass snake
- Ophioscincus ophioscincus <small>(Boulenger, 1887)</small> — yolk-bellied snake-skink
- Plica plica <small>(Linnaeus, 1758)</small> — collared treerunner
- Scincus scincus <small>(Linnaeus, 1758)</small> — sandfish
- Suta suta <small>(Peters, 1863)</small> — curl snake
- Tetradactylus tetradactylus <small>(Daudin, 1802)</small> — long-toed seps
Amphibians
thumb|right|[[Bombina bombina]]
- Bombina bombina <small>(Linnaeus, 1761)</small> — European fire-bellied toad
- Bufo bufo <small>(Linnaeus, 1758)</small> — common toad
- Pipa pipa <small>(Linnaeus, 1758)</small> — Suriname toad
- Salamandra salamandra <small>(Linnaeus, 1758)</small> — fire salamander
Fish
thumb|right|[[Anguilla anguilla]]
thumb|right|[[Carassius carassius]]
thumb|right|[[Limanda limanda]]
Arthropods
thumb|right|[[Grapsus grapsus]]
thumb|right|[[Melolontha melolontha]]
Molluscs
thumb|right|[[Concholepas concholepas]]
Other
thumb|right|[[Velella velella]]
- Aaptos aaptos — a sponge
- Acanthogyrus acanthogyrus — an acanthocephalan worm
- Cephea cephea — crown jellyfish, cauliflower jellyfish
- Chaos chaos — an amoeba
- Cidaris cidaris — long-spine slate pen sea urchin
- Convoluta convoluta — a flatworm
- Crambe crambe — oyster sponge
- Crassicauda crassicauda — a nematode
- Echiurus echiurus — a spoon worm
- Gracilisentis gracilisentis — a thorny-headed worm
- Hamigera hamigera — a sponge
- Heterophyes heterophyes — an intestinal fluke
- Loa loa — a nematode
- Mediocris mediocris — a Carboniferous foraminiferan
- Moniliformis moniliformis — an acanthocephalan worm
- Ophiura ophiura – serpent star (a brittle star)
- Periphylla periphylla — helmet jellyfish
- Porites porites — hump coral, finger coral
- Porpita porpita — blue button (a siphonophore)
- Spirorbis spirorbis — an annelid
- Thalassema thalassema — a spoon worm
- Tubifex tubifex — sludge worm
- Turgida turgida — a nematode
- Velella velella — by-the-wind-sailor
- Yukonensis yukonensis — a Cambrian archaeocyathan
Plant near-tautonyms
- Abutilon abutiloides — shrubby Indian mallow
- Araucaria araucana — monkey puzzle tree
- Arctostaphylos uva-ursi — kinnikinnick (This is a tautonym because Arctostaphylos means "bear grape" in Greek and uva-ursi means "bear grape" in Latin.)
- Bituminaria bituminosa — Arabian pea
- Cajanus cajan — pigeon pea
- Canarina canariensis — Canary Island bellflower
- Cuminum cyminum — cumin
- Elymus elymoides — squirreltail
- Elymus hystrix var. hystrix (formerly Hystrix hystrix) — eastern bottlebrush grass
- Hypericum hypericoides — St. Andrew's cross
- Inga ingoides — ice cream bean
- Larix laricina — tamarack
- Luzula luzuloides — white wood-rush
- Madia madioides — woodland madia
- Mantisalca salmantica
- Medinilla medinilliana
- Mielichhoferia mielichhoferiana — Mielichhof's copper moss
- Mycoporum mycoporoides
- Mycranthemum mycranthemoides — Nuttall's mudflower
- Phleum phleoides — Boehmer's cat's-tail
- Pinus pinea — stone pine
- Pyrus pyrifolia — Asian pear
- Raphanus raphanistrum — wild radish
- Sagittaria sagittifolia — arrowhead
- Salacca zalacca — salak
- Selaginella selaginoides — common spikemoss
- Silaum silaus — pepper saxifrage
- Soleirolia soleirolii — mother of thousands
- Spartina spartinae — gulf cordgrass
- Spiranthes spiralis — autumn lady's-tresses
- Tetragonia tetragonioides — New Zealand spinach
- Thalictrum thalictroides — rue-anemone
- Uncinia uncinata — Hawai'i bird-catching sedge
- Weberbauerocereus weberbaueri
- Zinnia zinnioides — zinnia-like zinnia
- Ziziphus zizyphus — jujube (note that the currently accepted name is Ziziphus jujuba)
Fungal near-tautonyms
- Alternaria alternata
- Aspergillus asper
- Bovista bovistoides
- Flagelloscypha flagellata
- Hydropus hydrophoroides
- Laccaria laccata — lackluster laccaria
- Melanoleuca melaleuca
- Roridomyces roridus — dripping bonnet
- Sclerotinia sclerotiorum — plant pathogen causing white mold
- Scutellinia scutellata — eyelash pixie cup
- Volvariella volvacea — straw mushroom
See also
- List of triple tautonyms
- Bilingual tautological expressions
