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#1618 · 🦎 reptiles

Black Spiny-tailed Iguana

🇳🇱 Witzwarte grondleguaan ·Ctenosaura similis

LCleast concern 🦎 Reptiles 📍 outside Europe
Black Spiny-tailed Iguana, photo 1 of 8
1/8 © bstewie3333 · CC BY-NC 4.0

what is it?

Ctenosaura similis , commonly known as the black spiny-tailed iguana , black iguana , or black ctenosaur , is a lizard native to Mexico and Central America that has been introduced to the United States in the state of Florida. It is the largest species in the genus Ctenosaura and has been recorded as the fastest-running species of lizard.

base stats

  • NL sightings 0iNaturalist, research grade
  • worldwide 52,917iNaturalist observations
  • threat LCleast concern

Bars compare against all animals on log scales: up to 300,000 Dutch and 600,000 worldwide sightings (the most-seen species), 150 t (blue whale), 30 m and 400 years (Greenland shark).

fun facts

  • No confirmed wild sightings in the Netherlands on iNaturalist: you'd have to travel for this one.
  • 52,917 observations worldwide on iNaturalist.
  • Scientifically named by John Edward Gray in 1831 (195 years ago).

fact sheet

English
Black Spiny-tailed Iguana
Nederlands
Witzwarte grondleguaan
scientific name
Ctenosaura similis
class
Reptilia
order
Squamata
family
Iguanidae
IUCN Red List
LC · least concern
sightings in NL
0
sightings worldwide
52,917
GBIF records in NL
1
weight
—
length
—
lifespan
—
named
1831 by John Edward Gray

IUCN in Dutch: niet bedreigd. Blank means the sources don't say.

relatives· Iguanidae

Sources: iNaturalist taxon 35303, Wikidata Q1132759, GBIF 2459603, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.

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