EL Karlstam 1954 Chorina lottoe June 3 Crocker Station adult ?? captured June 2. light colored for a rubber boa, medium light brown above and faded yellow ventrally with a marked absence of ventral dark marks on the gastrostages. Wayne Bryant, museum junior naturalist, told me that Valley specimens he has seen are deeper brown above, fading toward light yellow beneath. Room temp. where "embryos" kept (museum research room) 23.0°C, 10:30 A.M. (D.S.) at 1:45 P.M. it was 26°e. June 6 I separated the snake and the embryos. no more "eggs" had been laid. Some external fungus growth on most of the ten "eggs". Female had turned wet towel over many of them, and they may have been too dense. June 9 Bird bath 16" above dish for most of a day. 8:30 A.M. scraped mold off "eggs" and placed drier parts face down on wet towels. Half look in bad shape, dry & shriveled. June 16 more mold scraped off. All look good. June 28 One dissected. No embryo but reddish pigment area (germinal disc?) Egg is practically all yolk. Other egg preserved.