Web Sites for Ensatina eschscholtzi

• Classification
  Stebbins, Robert C., A Field Guide to Western Reptiles and Amphibians
  

• Ensatina ssp.
  David Wake, UC Berkeley, Problems with Species
  David Wake, UC Berkeley, Incipient Species Formation in Salamanders of the Ensatina Complex
  Richard G. Zweifel, Comparison of Food Habits of Ensatina eschscholtzii and Aneides lugubris
  Wiltenmuth & Nishikawa, Agonistic Behaviour in Ensatina
  Ensatina, University of California at Davis
  Richard A. Paselk, Humboldt State University
  Jessica J. Miller, Living Underworld.org

• picta
  CaliforniaHerps.com

• oregonensis
  R.A. Fridell, USGS, Northern Prairie Wildlife Research Center
  Janson Lowe, Del Norte and Ensatina Salamanders in Sympatry
  CaliforniaHerps.com

• platensis

CaliforniaHerps.com

• platensis x xanthoptica hybrids
  
Alexandrino, J., et al, Selection Against Hybrids

• klauberi
  Sorin Damian, photographer
CaliforniaHerps.com
San Diego Natural History Museum
Western Ecological Research Center
Jackman and Wake, Protein Analysis (PDF)

• croceater
  CaliforniaHerps.com