Senticolis is a genus of nonvenomous snake in the family Colubridae. The genus Senticolis is monotypic, containing the sole species Senticolis triaspis, also known as the green rat snake. The species is endemic to Central America, Mexico, southern Arizona, and southern New Mexico.
No narrative description available for this taxon yet.
A DNA barcode is a short, standardised stretch of genes that works like a fingerprint — enough to tell one species from another. Below is the molecular trace Senticolis triaspis has left across the world's sequence archives.
At a glance
DNA specimens3
BINs1
Marker genes1
eDNA detections3
Countries1
Marker genes sequenced
★ the standard DNA barcode for this group — the short region actually read to tell this species apart. The rest are extra genes sequenced along the way.
★COI-5P
animal barcode
07Deep time~19.9 Ma lineage
How far back this lineage goes — and how we know. Everything here is measured in Ma, short for “mega-annum”: millions of years ago. The chart reads left to right like a calendar of the Earth, from the deep past on the left to today at the right edgetop to bottom like a core drilled through the Earth, from the deep past at the top down to today at the bottom.
At a glance
DNA clock origin19.9 Ma TimeTree
When this lineage existed
How to read this: the coloured strip along the bottomdown the left is the geological calendar — the standard epochs (Pliocene, Pleistocene…) every museum uses, shown so you can see which chapter of Earth's history this lineage lived in. This lineage is a young one, so the strip is zoomed in to epochs — the finer subdivisions inside a period. The orange marker is the DNA clock: DNA accumulates mutations at a roughly steady rate, so comparing this species' DNA with its relatives estimates when the lineage split off — independently of any fossil.
DNA clock origin
08Occurrence & distribution
Record type1 330 records
Wild obs. + sensor961
Museum / vouchered369
Origin
Native38
Range
Area of Occupancy AOO4 004 km²
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Coordinate accuracy64% within 1 km
≤100 m 340≤1 km 185≤10 km 84>10 km 205
814 georeferenced · 147 without coordinates
Open the mapobservation + sensor961
Museum / Voucheredphysical evidence
Backed by a physical specimen — a herbarium sheet, sample or voucher held in a collection. “Vouchered” means supported by material evidence, not just an observation.
Coordinate accuracy71% within 1 km
≤100 m 102≤1 km 15≤10 km 41>10 km 7
165 georeferenced · 204 without coordinates
Open the institutions mapphysical evidence369
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
10Collections & institutions
Holding institutions26 of 43 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Wuzhou, CN
37
Los Angeles, US
34
Berkeley, US
31
München, DE
20
Mexico City, MX
20
University of Texas at Arlingtonlocation not on record
18
Universidad del Valle de Guatemalalocation not on record
15
Ciudad de México, MX
14
14
ASUlocation not on record
11
Chicago, US
11
Tuxtla Gutiérrez, MX
10
Ann Arbor, US
10
Ciudad de México, MX
10
EL PASO, US
10
Tapachula, MX
8
Washington, US
8
Texas Cooperative Wildlife Collectionlocation not on record
8
San Diego, US
7
Tlalnepantla, MX
6
CASlocation not on record
6
Zacatecas, MX
5
San Nicolás de los Garza, MX
5
Universidad Católica de Manizaleslocation not on record
5
Texas Memorial Museum, Texas Natural History Collectionlocation not on record
4
Centro de Investigaciones Biológicas, Universidad Autónoma del Estado de Moreloslocation not on record
4
South Kensington, GB
4
Sam Noble Oklahoma Museum of Natural Historylocation not on record
3
Cambridge, US
3
Champaign, US
2
Southeastern Louisiana University, Vertebrate Museumlocation not on record
2
Frankfurt am Main
2
University of Minnesota, James Ford Bell Museum of Natural Historylocation not on record
2
Fort Hays State University, Sternberg Museumlocation not on record
1
North Carolina Museum of Natural Scienceslocation not on record
1
University of Wisconsin Oshkoshlocation not on record
1
Guasave, MX
1
Chongqing Museumlocation not on record
1
San Francisco, US
1
Natural History Museum of Utahlocation not on record
1
Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record
1
San Luis Potosí, MX
1
New Haven, US
1
43 institutions · 359 of 369 vouchered records shown · 10 without an institution code
09Environmental DNA3 detections
Where the DNA of Senticolis triaspis was picked up in samples of water, soil or air — nobody saw the organism, only its DNA left behind. A trace is a clue that the species was near, not a confirmed sighting.
Signal
Detections DNA found3
Studies independent surveys1
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 3 detections have coordinates
Open the map0 countries0
How strong is each trace?
DNA read depthRead counts were not reported for this species — the map shows presence only, not how strong each trace was.
How to read this: each dot is one detection of this species' DNA in an environmental sample. The confidence meter weighs how many independent studies and places back up the signal — one detection in one study is a hint; many across several studies is solid. Records dated before 2008 (when eDNA methods began) are treated as likely mislabeled and left off the map.
WikipediaWikimedia Foundation7 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility1 330 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI3 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics3 specimens↗
Open Tree of LifeOpenTreephylogeny backbone↗
WikidataWikimedia Foundationstructured facts↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗