J. Rodgers - 1940 Ernest Gilbert Dec. 4 Mrs. Vert Zool., Univ. Calif., Berkeley, Alameda Co., Calif. the tail where it had apparently [and very likely, remembering my attempts to take it out of the tunnel the past two days] been bruised, I noticed a darker color. I found it not very difficult to scrape scale off with my finger nails, exposing a bright "orange" color - between Carmelian Red and Vinaceous-Rufous (Pl. XIV, 7', h). Judging by the ease with which I can scrape the scale off the lizard, it must have been about ready to shed. Scales scraped off the back expose a bright (near chartreuse yellow, then brown, gloss green) green color (then Kildare green [all Plate XX XI]) that, within two minutes exposure to the air, turns dep blue (Deep Delft Blue - Pl XLII, i ½) or darker than Indigo Blue - Pl XXXIV, 47', m) Scraping scale off of the labials does not expose any red, or even pink. It seems safe to speculate that, at the next molt, this lizard would have had a very red tail, but no red on the head. When the scales were scraped off of the dorsal side of the distal end of the tail the blue scale was still there and a little brighter. The color change occurs about as fast as one would expect it to in the course of drying. Many scales were picked off with no visible abrasive injury to the scales exposed. They changed just the same. Scraping the scale off of