PROC. CAL. ACAD. SCI., 4th Series, Vol. VIII 



:VAN DENBURGH & SLEVIN ] Plate 12 



a. — Tliainiiopliis ordinciclcs coudiii. Giant Garter-Snake: — Photograpli 

 from living specimen collected at Gadwall, IVIerced County, California, 

 May 12, 1918. 



b. — Thamnophis ordinoides couckii, Giant Garter-Snake: — Photograph 

 from living specimen collected at Gadwall, Merced County, California, 

 May 12, 1918. 



