E. Karleton 1954 Bufo larvae (6) April 13 flecked with black. Parotoids on common B. (82, 14, I-10) left footpad shown here. x2/3 I injected this specimen with M.S. 222 solution, 0.5 cc. of 10 mg./cc. strength, at 9:23. Five minutes later his respiratory rate was 1/3 normal, no righting reflex. I left it for an hour to attend ecology lecture. Animal revived and had to be hunted in lab. ELK 154 adult ->-> body length mm. 11:20 A.M. I injected 1 cc. M.S. 222 (10 mgm./cc. soln.) no righting reflex within 2 minutes although leg reflex strong. Animal relabeled for study. Suggest 1/2 to 1 cc. of the anesthetic last for killing specimen fast. Dorsal ground color close to Travenise (Pl. 14 F-3 M&P) otherwise colors similar to ELK 158 just described. Underparts are an off-shade white (possibly Pl. 18 B1, M.P.) with a rusty suffusion ventral abdominal egion. Throat lacks black spots for the most part. Some for under- parts of fore limbs. The mytilid cerification well developed and dark brown in color. Rt. testis 5.3 mm. long 3.2 mm. wide. General appearance is golden-yellow and along, the left