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

Observer

daltosax

Date

August 16, 2014 11:05 PM CDT

Place

(Somewhere...)

Photos / Sounds

Square

What

Crotalus ornatus Crotalus molossus

Observer

sandboa

Date

August 20, 2014 12:20 AM CDT

Description

AOR
First ornatus I have ever seen in Bexar county.

Photos / Sounds

Square

Observer

nauhyacacoatl

Date

February 22, 2002

Place

(Somewhere...)

Description

Bicho hermoso

Photos / Sounds

Square

What

Black-tailed Rattlesnake Crotalus molossus

Observer

johnkarges

Date

July 22, 2014 11:59 PM CDT

Description

Adult active along roadside, grassland savanna habitat with numerous catclaw acacia, cholla and some shrubs. Animal found by Joe Furman and numerous photos taken.
N30.66685 W-104.03664

Photos / Sounds

What

Black-tailed Rattlesnake Crotalus molossus

Observer

damontighe

Date

August 11, 2014 09:52 AM MDT

Photos / Sounds

What

Black-tailed Rattlesnake Crotalus molossus

Observer

rebeccamowry

Date

August 5, 2014

Place

(Somewhere...)

Description

On a public road in Pecos County; never got out of the way, I tried to get him (or her) off the road but he just rattled and coiled. Don't worry, I drove over him (straddled) and he made it.

Photos / Sounds

Square

What

Black-tailed Rattlesnake Crotalus molossus

Observer

supertochtli

Date

June 19, 2014

Place

(Somewhere...)

Description

Serpiente de cascabel de cola negra

Photos / Sounds

What

Black-tailed Rattlesnake Crotalus molossus

Observer

johnkarges

Date

August 2, 2014

Description

Adult female out active near boulders with some grasses and pines on steep slope of Mount Livermore in The Nature Conservancy's Davis Mountains Preserve.
N30.63774 W-104.16571

Photos / Sounds

Square

What

Black-tailed Rattlesnake Crotalus molossus

Observer

texasblonde

Date

July 31, 2014 02:43 AM CDT

Photos / Sounds

Square

What

Black-tailed Rattlesnake Crotalus molossus

Observer

texasblonde

Date

July 25, 2014 11:30 PM CDT

Description

~85* Fahrenheit

Photos / Sounds

Square

Observer

maura1187

Date

July 23, 2014 08:41 AM MDT

Description

Two snakes, appear to be copulating.

Photos / Sounds

Square

What

Black-tailed Rattlesnake Crotalus molossus

Observer

danjleavitt

Date

July 23, 2014 08:51 PM MDT
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.