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

mjskinner

Date

August 3, 2011 05:36 AM MST

Photos / Sounds

Square

What

Black-tailed Rattlesnake Crotalus molossus

Observer

catenatus

Date

August 18, 2015 12:49 AM CDT

Description

Jeff Davis co, Tx

Photos / Sounds

Square

What

Black-tailed Rattlesnake Crotalus molossus

Observer

catenatus

Date

August 17, 2015 10:49 PM CDT

Description

Jeff Davis co tx

Photos / Sounds

Square

What

Black-tailed Rattlesnake Crotalus molossus

Observer

catenatus

Date

August 17, 2015 10:45 PM CDT

Description

Jeff Davis co tx

Photos / Sounds

Square

What

Black-tailed Rattlesnake Crotalus molossus

Observer

catenatus

Date

August 17, 2015 10:42 PM CDT

Description

Jeff Davis co tx

Photos / Sounds

No photos or sounds

What

Mexican black-tailed Rattlesnake Crotalus molossus ssp. nigrescens

Observer

arturo11

Date

August 17, 2015 11:47 AM YEKT

Place

(Somewhere...)

Photos / Sounds

Square

What

Mexican black-tailed Rattlesnake Crotalus molossus ssp. nigrescens

Observer

arturo11

Date

August 16, 2015 10:32 PM YEKT

Place

(Somewhere...)

Description

Encontrada en matorral espinoso

Photos / Sounds

What

Black-tailed Rattlesnake Crotalus molossus

Observer

hnoriega

Date

July 25, 2015

Description

Very green color and wasn't in a hurry to cross the street.

Photos / Sounds

Square

What

Black-tailed Rattlesnake Crotalus molossus

Observer

tom79848

Date

August 20, 2015 09:58 PM CDT

Photos / Sounds

Square

What

Black-tailed Rattlesnake Crotalus molossus

Observer

gtsalmon

Date

August 20, 2015 09:48 PM CDT

Description

Juvenile walked by Doug Beckwith on the south cut of the Alpine Big Hill. Imaged only (by him).

Photos / Sounds

Square

What

Black-tailed Rattlesnake Crotalus molossus

Observer

murcidrea

Date

July 17, 2015

Place

(Somewhere...)

Description

Tristemente la acababan de atropellar

Photos / Sounds

Square

What

Black-tailed Rattlesnake Crotalus molossus

Observer

gtsalmon

Date

August 6, 2015 10:27 PM CDT

Description

On the Alpine "Big Hill" walked by Doug Beckwith (~ 20" TL). Imaged only (by him).

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

  • Mexico
    Sujeta a protección especial (Pr) (Source: Norma Oficial 059)
Source: IUCN 2010. IUCN Red List of Threatened Species. Version 2010.4. http://www.iucnredlist.org/technical-documents/spatial-data. Downloaded March 2011.