Pituophis deppei, commonly known as the Mexican bullsnake and the Mexican pine snake, is a species of snake in the family Colubridae. The species is endemic to Mexico. There are two recognized subspecies.
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 Pituophis deppei has left across the world's sequence archives.
At a glance
DNA specimens2
Marker genes1
eDNA detections2
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~7.65 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 origin7.65 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 661 records
Wild obs. + sensor1 145
Museum / vouchered516
Origin
Native41
Range
Area of Occupancy AOO4 976 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 accuracy77% within 1 km
≤100 m 488≤1 km 242≤10 km 146>10 km 73
949 georeferenced · 196 without coordinates
Open the mapobservation + sensor1 145
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 accuracy57% within 1 km
≤100 m 124≤1 km 17≤10 km 84>10 km 21
246 georeferenced · 270 without coordinates
Open the institutions mapphysical evidence516
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 institutions22 of 35 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
72
Ann Arbor, US
64
Mexico City, MX
47
Los Angeles, US
36
EL PASO, US
26
University of Texas at Arlingtonlocation not on record
26
Mexico City, MX
25
Texas Cooperative Wildlife Collectionlocation not on record
23
Ciudad de México, MX
21
San Luis Potosí, MX
21
Toronto, CA
19
Centro de Investigaciones Biológicas, Universidad Autónoma del Estado de Hidalgolocation not on record
16
Berkeley, US
15
Chongqing Museumlocation not on record
14
Washington, US
13
San Diego, US
10
Louisiana State University, Museum of Zoologylocation not on record
10
San Nicolás de los Garza, MX
7
Tlalnepantla, MX
6
6
Ciudad de México, MX
5
Texas Memorial Museum, Texas Natural History Collectionlocation not on record
5
Champaign, US
3
South Kensington, GB
3
Frankfurt am Main
2
Museo de Historia Natural Alfredo Dugés, Universidad de Guanajuatolocation not on record
2
Cambridge, US
2
2
Universidad Católica de Manizaleslocation not on record
2
North Carolina Museum of Natural Scienceslocation not on record
2
Centro de Investigaciones Biológicas, Universidad Autónoma del Estado de Moreloslocation not on record
2
Southeastern Louisiana University, Vertebrate Museumlocation not on record
1
Zacatecas, MX
1
Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record
1
University of Minnesota, James Ford Bell Museum of Natural Historylocation not on record
1
35 institutions · 511 of 516 vouchered records shown · 5 without an institution code
09Environmental DNA2 detections
Where the DNA of Pituophis deppei 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 found2
Studies independent surveys1
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 2 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 Foundation1 languages↗
GBIFGlobal Biodiversity Information Facility1 661 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI2 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics2 specimens↗
Open Tree of LifeOpenTreephylogeny backbone↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗