skip to content

#1709 · 🦎 reptiles

Checkered Garter Snake

Thamnophis marcianus

LCleast concern 🦎 Reptiles 📍 outside Europe
Checkered Garter Snake, photo 1 of 10
1/10 © NoNiSs · CC BY-NC 4.0

what is it?

The checkered garter snake ( Thamnophis marcianus ) is a species of garter snake endemic to the southwestern United States, Mexico, and Central America.

base stats

  • NL sightings 0iNaturalist, research grade
  • worldwide 8,393iNaturalist 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.
  • 8,393 observations worldwide on iNaturalist.
  • Scientifically named by Spencer Fullerton Baird in 1853 (173 years ago).

fact sheet

English
Checkered Garter Snake
scientific name
Thamnophis marcianus
class
Reptilia
order
Squamata
family
Colubridae
IUCN Red List
LC · least concern
sightings in NL
0
sightings worldwide
8,393
GBIF records in NL
0
weight
—
length
—
lifespan
—
named
1853 by Spencer Fullerton Baird

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

relatives· Colubridae

Sources: iNaturalist taxon 28390, Wikidata Q1458979, GBIF 2457621, Wikipedia (EN). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.

stan runge e33afe5 source