Classification
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All Names

  • English
    • Southern Pacific Rattlesnake
  • Scientific Names
    • Crotalus oreganus helleri
    • Crotalus helleri
    • Crotalus viridis helleri

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Recent observations

Photos / Sounds

Square

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Date

July 27, 2015

Place

(Somewhere...)

Photos / Sounds

Square

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Date

July 24, 2015

Place

(Somewhere...)

Photos / Sounds

Square

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

bioenthusiast_ox

Date

July 9, 2015

Description

Looked like a juvenile.

Photos / Sounds

Square

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

johnmartin

Date

April 24, 2009

Description

In southern mixed chaparral, mafic soils.

Photos / Sounds

Square

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

johnmartin

Date

February 23, 2009

Description

On a vernal pool restoration site.

Photos / Sounds

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

bgator

Date

July 23, 2015 09:20 AM PDT

Description

On trail. Approx. 1 meter in length.

Photos / Sounds

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

nhm_nature

Date

July 1, 2015

Description

Observation and photo by Kali Malone.

Photos / Sounds

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

escout

Date

July 2, 2015 06:09 PM PDT

Description

Moving across the trail.

Photos / Sounds

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

escout

Date

March 25, 2015 10:07 AM PDT

Photos / Sounds

Square

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

kclarksdnhmorg

Date

July 18, 2015

Description

Under a log in dense alder riparian forest. Elevation 3,133 ft.

Photos / Sounds

Square

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Date

July 13, 2015

Place

(Somewhere...)

Photos / Sounds

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Date

July 7, 2015

Place

(Somewhere...)
View all observations

Description from Wikipedia

Crotalus oreganus helleri is a venomous pitviper subspecies found in southwestern California and south into Baja California, Mexico.

No range data available.