Classification
Within iNaturalist.org

All Names

  • English
    • Blacktail Rattlesnake
    • Black-tailed Rattlesnake
    • Black Tailed Rattlesnake
  • German
    • Schwarzschwanz-Klapperschlange
  • Scientific Names
    • Crotalus molossus
    • Crotalus ornatus
  • Seri
    • cocázni
    • sayahuqui
  • Tarahumara
    • sayahuki
  • Spanish
    • Cascabel de cola negra

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Recent observations

Photos / Sounds

What

Northern Black-tailed Rattlesnake Crotalus molossus ssp. molossus

Observer

kucycads

Date

December 10, 2014

Place

(Somewhere...)

Description

young snake, probably just ate a Peromyscus-sized rodent

Photos / Sounds

What

Blacktail Rattlesnake Crotalus molossus

Observer

gtsalmon

Date

June 26, 2009 09:52 PM CDT

Description

AOR on Hwy 90. Imaged only. GTS 759. UTA DC 7288-89. Map point is approximate.

Photos / Sounds

What

Blacktail Rattlesnake Crotalus molossus

Observer

gtsalmon

Date

July 6, 2009 02:14 AM CDT

Description

AOR old adult male on FM 2627. Imaged only. GTS 801. UTA DC 7428-29. Map point is approximate.

Photos / Sounds

What

Black-tailed Rattlesnake Crotalus molossus

Observer

gtsalmon

Date

July 2, 2009 07:37 PM CDT

Description

AOR adult on FM 1832 nr Hwy 17. GTS 777. UTA DC 7303-04.

Photos / Sounds

Square

What

Mexican black-tailed Rattlesnake Crotalus molossus ssp. nigrescens

Observer

gtsalmon

Date

September 10, 1997 10:30 PM CDT

Place

(Somewhere...)

Description

DOR adult on Coahuila Hwy 122 nr El Milagro. With Joe Forks (photographer). GTS 347. KU CT 11973. Map point is approximate.

Photos / Sounds

Square

What

Blacktail rattlesnake Crotalus molossus

Observer

jaredholmes

Date

December 4, 2014 08:01 PM CST

Photos / Sounds

Square

What

Blacktail rattlesnake Crotalus molossus

Observer

jaredholmes

Date

December 4, 2014 07:58 PM CST

Photos / Sounds

Square

What

Cascabel de cola negra Crotalus molossus

Observer

hvillalonmoreno

Date

November 26, 2014

Place

(Somewhere...)

Photos / Sounds

Square

What

Black-tailed Rattlesnake Crotalus molossus

Observer

connor22

Date

November 22, 2014 12:38 PM CST

Description

DOR

Photos / Sounds

What

Black Tailed Rattlesnake Crotalus molossus

Observer

derekw2

Date

December 6, 2012

Photos / Sounds

Square

What

Cascabel de cola negra mexicana Crotalus molossus ssp. nigrescens

Observer

teban

Date

November 13, 2014

Place

(Somewhere...)

Photos / Sounds

Square

What

Crotalus ornatus Crotalus molossus

Observer

ashleytubbs

Date

May 15, 2012 10:57 AM CDT
View all observations

Description from Wikipedia

Crotalus molossus is a venomous pit viper species found in the southwestern United States and Mexico. Four subspecies are currently recognized, including the nominate subspecies described here.

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Conservation Summary

Source: IUCN 2010. IUCN Red List of Threatened Species. Version 2010.4. http://www.iucnredlist.org/technical-documents/spatial-data. Downloaded March 2011.