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

Guide Colors

 

Extras

Taxonomic changes »

Taxon schemes »

Make taxonomic Flickr tags for this taxon »

Flickr invite link »

Wikipedia taxobox »

Tree Browser »

Search descendant taxa »

Embed a widget for this taxon on your website »

Recent observations

Photos / Sounds

Square

What

Crotalus ornatus Crotalus molossus

Observer

ashleytubbs

Date

September 13, 2014 12:15 AM CDT

Description

Gray body with brown and yellow blotches down the back.

Photos / Sounds

Square

Observer

betovba

Date

October 8, 2014 11:06 AM CST

Place

(Somewhere...)

Description

Víbora de cascabel entrando a una madriguera.

Photos / Sounds

Square

Observer

betovba

Date

October 8, 2014 10:50 AM CST

Place

(Somewhere...)

Description

Víbora de cascabel, vista cerca del camino de terracería al poblado de La Mesa de San Rafael, Mpio. de Guadalupe y Calvo, Chih.

Photos / Sounds

What

Cascabel de cola negra Crotalus molossus

Observer

goyo

Date

May 2, 2014

Place

(Somewhere...)

Description

De regreso del monitoreo de guacamaya, en el sendero que conduce a la presa Los Alamitos, aproximadamente a unos 330° de la cortina nos encontramos con esta cascabel.

Photos / Sounds

What

Cascabel de cola negra mexicana Crotalus molossus ssp. nigrescens

Observer

arnulfomoreno

Date

May 22, 2010

Place

(Somewhere...)

Photos / Sounds

Square

What

Black Tailed Rattlesnake Crotalus molossus

Observer

gtsalmon

Date

June 22, 2009 10:10 PM CDT

Description

AOR adult on Hwy 17. Imaged only. GTS 731. UTA DC 7270.

Photos / Sounds

Square

What

Black-tailed Rattlesnake Crotalus molossus

Observer

gtsalmon

Date

June 21, 2009 09:17 PM CDT

Description

Under a rock (as flipped) off the shoulder of Hwy 118 on South Hill of the Christmas Moutains. Imaged only. GTS 729. UTA DC 7268.

Photos / Sounds

Square

What

Northern Black-tailed Rattlesnake Crotalus molossus ssp. molossus

Observer

kucycads

Date

September 5, 2014

Place

(Somewhere...)

Photos / Sounds

Square

What

Crotalus ornatus Crotalus molossus

Observer

ctravis

Date

June 12, 2014

Photos / Sounds

Square

What

Crotalus ornatus Crotalus molossus

Observer

ctravis

Date

June 11, 2014

Photos / Sounds

Square

Observer

eligar7

Date

April 22, 2009

Place

(Somewhere...)

Photos / Sounds

Square

Observer

eligar7

Date

April 22, 2009

Place

(Somewhere...)
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.

Logo-eee-15px

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.