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

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

biohexx1

Date

February 9, 2016

Description

Observation by Biology Department technician 'C', on campus track.

Photos / Sounds

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

flygrl67

Date

May 28, 2010

Photos / Sounds

Square

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

kkuhn

Date

January 30, 2016 01:12 PM PST

Description

Wild Horse Trail off Iron Mountain Trail

Photos / Sounds

Square

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

natureinla

Date

July 30, 2011 05:41 PM PDT

Description

Observation and photo by Harlynne Geisler, sent to rascals@nhm.org.

Photos / Sounds

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

jaykeller

Date

January 10, 2016 02:54 PM PST

Description

Amazing what turns up by flipping rocks for salamanders!

Photos / Sounds

Square

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

threestars

Date

December 10, 2015

Description

Juvenile with 3 rattles, dead on dirt road

Photos / Sounds

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

sdnhm

Date

September 9, 2009

Description

2 males in combat for a nearby female
Photos taken by Dale Stiver

Photos / Sounds

Square

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

venomdoc

Date

June 23, 2003 11:08 PM EDT

Place

(Somewhere...)

Description

Intergrade helleri X oreganus

Photos / Sounds

Square

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

cfhollo

Date

April 1, 2015

Description

found on Mount Woodson trail SE side under a tree

Tags

Photos / Sounds

Square

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

cwbarrows

Date

June 26, 2010

Photos / Sounds

Square

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

cwbarrows

Date

July 13, 2007

Photos / Sounds

Square

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

gavitp

Date

February 16, 2013

Description

Found at junction of Lower Monroe trail with Mystic Canyon Trail

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.
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