#tautonym
It’s #TautonymTuesday! Meet 𝐵𝑎𝑟𝑏𝑎𝑡𝑢𝑙𝑎 𝑏𝑎𝑟𝑏𝑎𝑡𝑢𝑙𝑎, the stone loach. This small benthic #fish inhabits cool, fast-flowing streams across Europe and western Asia. They live on the bottom, often partly buried. A classic tautonym in freshwater ichthyology! #Systematics #TaxonomyTuesday Photo: Holger Krisp
November 25, 2025 at 7:08 PM
It’s #TautonymTuesday! Meet Cyanicterus cyanicterus, the blue-backed #tanager. This dazzling #bird from the Guianas is the only species in its genus, which makes it monotypic and a tautonym! #Ornithology #Taxonomy #Birds Photo: Hector Bottai
September 16, 2025 at 5:51 PM
#MOLLUSCMONDAY Did you know that a species name with TWO identical names is called a TAUTONYM? Today's tautonym is UMBRACULUM UMBRACULUM! translates to "Umbrella Umbrella" ! Why....???? (see follow up) www.inaturalist.org/observations...
Umbrella Slug (Umbraculum umbraculum)
Umbrella Slug from Italia on May 23, 2025 at 01:08 PM by specter987
www.inaturalist.org
September 22, 2025 at 2:40 PM
I don’t know, sneaking in a near-tautonym sounds like a fun challenge for an adventurous botanist/mycologist…
en.wikipedia.org/wiki/List_of...
List of tautonyms - Wikipedia
en.wikipedia.org
September 24, 2026 at 2:25 AM
A view of Pendle Hill - famous for witches, the Quaker movement, and being a triple tautonym - and Clitheroe from Waddington.
#Photography
#Landscape
#Lancashire
#RibbleValley
August 6, 2025 at 4:57 AM
Let's talk about tautonyms & the weird, sad little taxonomy nerds who love them (me; I'm talking about me).

A tautonym is a scientific name where both genus & specific epithet have the same spelling.

Rattus rattus, for example, the black rat.
Or Vulpes vulpes, the red fox.
September 28, 2023 at 12:37 AM
/Gekko gecko/ (Tokay) is a homophonic tautonym, but not fully homonymous
September 28, 2023 at 5:29 AM
we were looking at a nesting colony; as do many herons, BBHE gather to nest and raise their young. Those large eyes and sensitive bill help these #birds hunt aquatic prey in the dark. This species’ scientific name is a tautonym (both the genus and specific name are the same) Cochlearius cochlearius.
March 24, 2025 at 1:13 PM
Who doesn't love a good tautonym?!
It’s #TautonymTuesday! Meet 𝑅𝑒𝑑𝑢𝑛𝑐𝑎 𝑟𝑒𝑑𝑢𝑛𝑐𝑎, the bohor reedbuck. This medium-sized #antelope thrives in moist grasslands and savannas across sub-Saharan Africa. Known for its shy nature and whistling alarm calls. #TaxonomyTuesday #Systematics #Wildlife Photo: Bernard DUPONT
September 23, 2025 at 9:15 PM
Regulus regulus, the Goldcrest. Its scientific name a tautonym, both genus and species the same because this bird is the "type" of the genus, it's the first and defining species. US viewers will perhaps recognise it as a kinglet and it is, indeed, a kinglet type species. #UKBirding
November 22, 2025 at 11:12 AM
Most of the time I like our no-tautonym stance.

But then, Boops boops.
May 1, 2024 at 2:38 AM
Fun Friday night question!

What's your favourite tautonym!?

Hard to beat "bubo bubo"
July 31, 2026 at 7:02 PM
Periphylla periphylla! For #TAXONOMYTuesday, species name w/2 of the same name is called a TAUTONYM! for example the sunfish is called Mola mola! Tautonyms are allowed in the zoological codes but NOT in the botany ones. Bah. whatevs dude. image via Ocean Census www.facebook.com/photo/?fbid=...
May 19, 2026 at 4:09 PM
what's your favourite tautonym? mine's the wren - troglodytes troglodytes

bonus points to pyrrhula pyrrhula, the eurasian bullfinch, my favourite finch ever
February 19, 2026 at 5:59 PM
I'd be curious to hear what your favorite binomial or triple tautonym is!

Short list is here: en.wikipedia.org/wiki/List_of...

My favorite is the Giraffa giraffa giraffa: the South African giraffe, but I'm also partial to the Gallus gallus gallus, the red jungle-fowl.
September 28, 2023 at 12:41 AM
On #NYTSpellingBee, missing pangrams today: TAUTONYM, TAUTONOMY, & AUTOANTONYM, all recognized by @merriam-webster.com
MW rejects AUTONYM, but @OED includes it, dating to 1854. It refers to an author writing under his/her own name (& not a pseudonym) or a book published under an author's name.
November 16, 2024 at 1:58 PM
your basic eurasian wren possesses a binomial tautonym: Troglodytes troglodytes

in this sense, "troglodytes" means "hole-enterer," referring to how they often feed
December 5, 2024 at 3:28 PM
It’s #TautonymTuesday! Meet Martes martes, the European pine marten. This agile #mustelid roams woodlands across Europe, known for its chestnut fur, bushy tail, and creamy throat patch. A classic tautonym in mammalian #taxonomy! #MartesMartes #CarnivoreEcology Photo: Dani Kropivnik
September 9, 2025 at 9:12 PM
It’s #TautonymTuesday! Meet 𝑅𝑎𝑡𝑡𝑢𝑠 𝑟𝑎𝑡𝑡𝑢𝑠, the black rat. This globally distributed rodent is a classic tautonym and a key species in studies of #urbanecology, invasive biology, and zoonotic disease transmission. #TaxonomyTuesday #Systematics Photo: H. Zell
October 7, 2025 at 10:24 PM
My fav. tautonym is UMBRACULUM UMBRACULUM, an "umbrella slug"-the name literally means Umbrella Umbrella! #taxonomytuesday en.wikipedia.org/wiki/Umbracu...
Umbraculum umbraculum - Wikipedia
en.wikipedia.org
May 19, 2026 at 4:14 PM
Om du har plass kan du notere Gorilla gorilla gorilla og Bison bison bison óg. Tautonymer er gøy.
Tautonym - Wikipedia
en.wikipedia.org
February 23, 2026 at 11:35 PM
It’s #TautonymTuesday! Meet Calotes calotes, the vibrant Indian garden #lizard. Native to South Asia, this arboreal agamid is known for its striking coloration and dynamic displays. A classic example of a tautonym in reptilian taxonomy! #Herpetology #CalotesCalotes Photo: Rehman Abubakr #Reptiles
September 2, 2025 at 7:23 PM
There's a triple tautonym here: the Pica pica (Eurasian magpie) that is found in most of Western Europe is the Pica pica pica (light green on map)!
August 13, 2024 at 1:46 AM
Sorry, that should have been TAUTONYM, not AUTONYM.

Lynx lynx Boops boops.
November 17, 2024 at 9:43 AM