EL Karlstam 1956 Bufo boreas Richard Feb. 7 and A where they had been two-digged March 1955 (see data sheets). Feb. 8 Amphelorus pair kept at 16-17°C in cold room. One pair produced spawn in our last night. Eggs resulted and high % fertile, used for Zoology 1B. Series of adults (all in amphelus) were run against the standards I set up for systematic analysis of dorsal types. Fresh material corres- panded closely to Richard preserved toads previously analyzed. The method agrees well. Dorsal dichromia again showed up. Of special interest is the lightening of the green ground color of the moles when they are in amphelus. Become a yellow green, several shades lighter than those moles kept in some aquarium but not "jacked up" by mating close with ♀'s. William Prema for reported this lightening ("graying") phenomenon in breeding Rana torosa (?) males. The light color is lost within 5-10 minutes after male separated from ♀. Some of the dorsal melanin may also be contributed to deeper layers, but the obvious effect is the change in ground color. Feb. 28 Pair in amphelus again kept at room temps. in lab. Female still retains eggs. No noticeable lightening of ♀'s green color. Laid of retention in ice box (3-4°C.) could have dulled their urges?