INATURALIST Observations 346729688
Unknown, Hidalgo: 20.085134, -99.45132: : 4/1/2026: Kevin Meza: 1 Apr 2026 ; Coordinate Uncertainty in Meters: 140.00000.

INATURALIST Observations 35338927
Soledad de Graciano Sanchez, San Luis Potosi: 22.234293, -100.863521: : 11/5/2019: F├⌐lix Alvarado: 5 Nov 2019 ; Coordinate Uncertainty in Meters: 22.00000.

INATURALIST Observations 229394297
Occurrence Remarks: Observaci├│n realizada en compa├▒├¡a de @xabi_herrero_otero y @jesus_larar; Coordinate Uncertainty in Meters: 6067.00000.

Villa de Guadalupe, San Luis Potosi: 23.340561, -100.785063: : 5/16/2010: Michael Price: 16 May 2010 ; Coordinate Uncertainty in Meters: 4.00000.

Cerritos, San Luis Potosi: 22.472465, -100.340753: : 8/5/2008: Michael Price: 5 Aug 2008 ; Coordinate Uncertainty in Meters: 4.00000.

Catorce, San Luis Potosi: 23.507178, -100.981688: : 8/9/2020: Sierra_K: 9 Aug 2020 ; Coordinate Uncertainty in Meters: 0.11000.

Aramberri, Nuevo Leon: 24.317778, -99.901959: : 7/30/2018: Michael Price: 30 Jul 2018 ; Coordinate Uncertainty in Meters: 5.00000.

Occurrence Remarks: - https://www.herpmapper.org/voucher/6440/full.jpg; Coordinate Uncertainty in Meters: 0.11000.

Aramberri, Nuevo Leon: 23.965139, -100.012515: : 8/17/2006: Michael Price: 17 Aug 2006 ; Coordinate Uncertainty in Meters: 4.00000.

Doctor Arroyo, Nuevo Leon: 23.739375, -99.993928: : 8/10/2020: Sierra_K: 10 Aug 2020 ; Coordinate Uncertainty in Meters: 0.11000.

Doctor Arroyo, Nuevo Leon: 23.739355, -99.993867: : 8/10/2020: Chris Gruenwald Herp.mx: 10 Aug 2020 ; Coordinate Uncertainty in Meters: 5.00000.

Mazapil, Zacatecas: 24.212947, -101.486285: : 4/1/2021: Marco Antonio Ju├írez Cabral: 1 Apr 2021 ; Coordinate Uncertainty in Meters: 488.00000.

Aramberri, Nuevo Leon: 24.352001, -99.904931: : 7/31/2018: Michael Price: 31 Jul 2018 ; Coordinate Uncertainty in Meters: 5.00000.

Occurrence Remarks: 1950 m. This snake farts as a defense mechanism. Excellent strategy.; Coordinate Uncertainty in Meters: 30090.00000.

Chihuahua, Chihuahua: 29.167074, -106.540044: : 7/27/2024: Ram├│n Isaac Miramontes Cinco: 27 Jul 2024 ; Coordinate Uncertainty in Meters: 29533.00000.

Unknown, Coahuila: 25.713362, -101.404067: : 5/4/2026: Ismael Carre├│n: 4 May 2026 ; Coordinate Uncertainty in Meters: 3.00000.

Cuatro Cienegas, Coahuila: 27.025295, -102.10021: : 4/22/2012: Eric Centenero Alcal├í: 22 Apr 2012 ; Coordinate Uncertainty in Meters: 5000.00000.

Viesca, Coahuila: 25.18746, -102.75698: : 5/1/2024: Aurora Salda├▒a ≡ƒç▓≡ƒç╜: 1 May 2024 ; Coordinate Uncertainty in Meters: 5.00000.

Arteaga, Coahuila: 25.355506, -100.885048: : 3/10/2016: Zona Sujeta a Conservaci├│n Ecol├│gica Sierra de Zapalinam├⌐: 10 Mar 2016 ; Coordinate Uncertainty in Meters: 488.00000.

Arteaga, Coahuila: 25.239483, -100.835076: : 3/23/2004: Zona Sujeta a Conservaci├│n Ecol├│gica Sierra de Zapalinam├⌐: 23 Mar 2004 ; Coordinate Uncertainty in Meters: 122.00000.

Galeana, Nuevo Leon: 24.554467, -100.026047: : 8/21/2016: Xanett Aguilar Izaguirre: 21 Aug 2016 ; Coordinate Uncertainty in Meters: 0.11000.

Mina, Nuevo Leon: 26.197486, -100.670487: : 8/3/2008: Michael Price: 3 Aug 2008 ; Coordinate Uncertainty in Meters: 4.00000.

Occurrence Remarks: Bosque de pino y matorral; Coordinate Uncertainty in Meters: 480.00000.

Arteaga, Coahuila: 25.313373, -100.887527: : 10/9/2021: Caracoles y cochinillas: 9 Oct 2021 ; Coordinate Uncertainty in Meters: 1961.00000.

Unknown, Chihuahua: 28.70475, -106.163122: : 5/11/2026: Roman Pastor: 11 May 2026 ; Coordinate Uncertainty in Meters: 1.11000.

Chihuahua, Chihuahua: 28.63998, -106.1753: : 7/30/2024: Green hearts CRB: 30 Jul 2024 ; Coordinate Uncertainty in Meters: 4.00000.

Aramberri, Nuevo Leon: 24.376592, -99.91208: : 7/31/2018: Michael Price: 31 Jul 2018 ; Coordinate Uncertainty in Meters: 5.00000.

GBIFID: 891736544; Occurrence Remarks: While driving the road for herps. When disturbed, this snake produces a surprising popping crackle sound. We later learned it was producing the noise with its cloaca;; Coordinate Uncertainty in Meters: 67336.00000.

GBIFID: 1847439144;; Coordinate Uncertainty in Meters: 4.00000.

GBIFID: 4138148850;; Coordinate Uncertainty in Meters: 4939.00000.

GBIFID: 1901080178;; Coordinate Uncertainty in Meters: 29407.00000.

GBIFID: 2012978505; Occurrence Remarks: Alive;; Coordinate Uncertainty in Meters: 3.00000.

GBIFID: 1291089194; Occurrence Remarks: AOR - moved to side of road;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 2814089316; Occurrence Remarks: On road cut.;; Coordinate Uncertainty in Meters: 29407.00000.

GBIFID: 3335532329; Occurrence Remarks: Observed by Ady;; Coordinate Uncertainty in Meters: 61.00000.

Occurrence Remarks:; Coordinate Uncertainty in Meters: 31.00000.

GBIFID: 4936136652; Occurrence Remarks: AOR on FM 1832. Imaged only. GTS 995. UTA-DC 7342.;; Coordinate Uncertainty in Meters: 10.00000.

Unknown, Sonora: 30.565289, -109.743775: : 11/2/2025: Sky Jacobs: 2 Nov 2025 ; Coordinate Uncertainty in Meters: 8.00000.

GBIFID: 4936947546; Occurrence Remarks: AOR adult on Hwy 90, just W of Altuda Mountain. Imaged only. GTS 743. UTA-DC 7272.;; Coordinate Uncertainty in Meters: 7.00000.

GBIFID: 4937019933; Occurrence Remarks: DOR male on Hwy 17: ~ 10 miles S of FM 1832. GTS 738. SRSU 6003 (Herpetology collection at Sul Ross State University, Alpine, Texas).;; Coordinate Uncertainty in Meters: 28.00000.

GBIFID: 1847546667; Occurrence Remarks: Crawling into a crack in the rocks while weÆre weÆre hunting for Leps and pictigaster;; Coordinate Uncertainty in Meters: 5.00000.

GBIFID: 4863347667; Occurrence Remarks: Actively moving/hunting under large rock observer was standing on;; Coordinate Uncertainty in Meters: 29330.00000.

GBIFID: 4903948756; Occurrence Remarks: With Roy engledorf Thanks for the correction, I never looked close, just snapped a pic and moved on.;; Coordinate Uncertainty in Meters: 4.00000.

GBIFID: 2265863615; Occurrence Remarks: Crockett Co.;; Coordinate Uncertainty in Meters: 20.00000.

GBIFID: 2269244443; Occurrence Remarks: About 14-15ö long!;; Coordinate Uncertainty in Meters: 5.00000.

GBIFID: 891163201; Occurrence Remarks: Adult on the crawl;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 4936256783; Occurrence Remarks: DOR female on Hwy 90: ~19 miles E of Marathon. GTS 1295. UTA-R 60268. First SnakeDays in Sanderson weekend.;; Coordinate Uncertainty in Meters: 28.00000.

GBIFID: 4937100539; Occurrence Remarks: Adult crossing road (recently seal coated). Both images are same specimen (second image more accurate in terms of actual color). 84 degrees F. Imaged only. GTS 3583. Specimen exhibited cloacal popping sound when picked up. Appeared to be a male but didnt pop (extend hemipenes when thumb rolled).;; Coordinate Uncertainty in Meters: 5.00000.

GBIFID: 891720410; Occurrence Remarks: Quantity= 1, County was Terrell County, Coordinates Derived from GPS using WGS84 datum, Observation was Road cruising, Specimen age Adult, , Sex undetermined, Elevation (ft): 3045, Moon Phase: Waning Crescent, Sky Condition Clear, Air Temp (F): 75, Surface Temp (F): 80, Pressure (in Hg): 29.9235086339778, Relative Humidity (percent): 54, Habitat Arid Ranch Land, Search Time (minutes): 192, Wind 7mph, other observers: Toby Brock, Pearl Brock.;; Coordinate Uncertainty in Meters: 29382.00000.

GBIFID: 1453094868; Occurrence Remarks: Cats brought this snake inside and killed it.;; Coordinate Uncertainty in Meters: 30.00000.

GBIFID: 1291108678; Occurrence Remarks: AOR, moved off for safety;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 1453277227; Occurrence Remarks: Photo by D. Wuerch Upton county record - TNHC #92943 Private ranch Month & Year are accurate; date is approximate.;; Coordinate Uncertainty in Meters: 1.11000.

GBIFID: 1455573743; Occurrence Remarks: Western Hooknose Snake Gyalopion canum Marfa, TX Presidio County, TX June 2009;; Coordinate Uncertainty in Meters: 4.00000.

GBIFID: 1571177696; Occurrence Remarks: About 8 inches long, no definitive pics of the upturned nose, but first impression of the snake seemed to have one.;; Coordinate Uncertainty in Meters: 61.00000.

GBIFID: 1571177919; Occurrence Remarks: Found while chasing a frog. Thunderstorms had passed through. Snake had upturned nose. First pic with phone, other pictures with camera.;; Coordinate Uncertainty in Meters: 0.11000.

GBIFID: 911504555; Occurrence Remarks: Snake Days;; Coordinate Uncertainty in Meters: 1.11000.

GBIFID: 923916843; Occurrence Remarks: On road;; Coordinate Uncertainty in Meters: 500.00000.

GBIFID: 1586927642; Occurrence Remarks: Date is the date the slide was scanned...;; Coordinate Uncertainty in Meters: 4.00000.

Occurrence Remarks: DOR; Coordinate Uncertainty in Meters: 29382.00000.

Occurrence Remarks: Not confident in the ID, small individual about 6 inches long. Hid under the rocks so I didnt get the best look at it.; Coordinate Uncertainty in Meters: 1.11000.

GBIFID: 3773671201; Occurrence Remarks: Chihuahuan Hook-Nosed Snake (Gyalopion canum), Eddy County, New Mexico;; Coordinate Uncertainty in Meters: 25.00000.

GBIFID: 1847470638; Occurrence Remarks: Small snake, about 12 inches long.;; Coordinate Uncertainty in Meters: 27.00000.

GBIFID: 4171970620; Occurrence Remarks: MY BABES GOT HIS LIFER!!! Not even joking, the year and a half IÆve known him this man has put in TIME (his and mine - IÆm the sidekick) and so much effort all for this lil guy with a cute nose job!! Pure relief and euphoria finding this guy HELL YEAH BROTHERRR;; Coordinate Uncertainty in Meters: 29199.00000.

GBIFID: 4903791046; Occurrence Remarks: Found in FMSP near an arroyo after some rain. Was overcast;; Coordinate Uncertainty in Meters: 221.00000.

GBIFID: 4919438678; Occurrence Remarks: Observed crossing the highway late at night;; Coordinate Uncertainty in Meters: 46.00000.

GBIFID: 5087060804; Occurrence Remarks: Somewhere along Hwy 80 in the circle of uncertainty - GPS data lost;; Coordinate Uncertainty in Meters: 7000.00000.

GBIFID: 1453251489; Occurrence Remarks: Found dead on oil road.;; Coordinate Uncertainty in Meters: 3906.00000.

GBIFID: 891781947; Occurrence Remarks: Grassland on Kirtland Air Force Base near Albuquerque, Bernalillo Co., New Mexico, USA. Location approximate. Captured during snake survey project by C.W. Painter, who kindly allowed me to photo it before releasing it.;; Coordinate Uncertainty in Meters: 1740.00000.

GBIFID: 1024183680; Occurrence Remarks: Found night driving Highway 60 after a thunderstorm with heavy rain.;; Coordinate Uncertainty in Meters: 77498.00000.

GBIFID: 3337473656; Occurrence Remarks: DOR;; Coordinate Uncertainty in Meters: 119.00000.