#1618 · 🦎 reptiles
Black Spiny-tailed Iguana
🇳🇱 Witzwarte grondleguaan ·Ctenosaura similis
8 photos from iNaturalist (Creative Commons) · credits & licences
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
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
#1611 📷 7Green Iguana
🇳🇱 Groene Leguaan
Iguana iguana
LC 🌍 94.7k seen
#1676 📷 10Western Spiny-tailed Iguana
🇳🇱 Zwarte leguaan
Ctenosaura pectinata
LC 🌍 12.4k seen
#1686 📷 10Marine Iguana
🇳🇱 Zeeleguaan
Amblyrhynchus cristatus
VU 🌍 11.2k seen
#1694 📷 7Common Chuckwalla
🇳🇱 Gewone chuckwalla
Sauromalus ater
LC 🌍 10.3k seen
#1701 📷 8Desert Iguana
🇳🇱 Woestijnleguaan
Dipsosaurus dorsalis
LC 🌍 9k seen
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.