Chen KK-Discovery(ies) Genus / Species Journal Year Volume Page Bufo alvarius J. Pharmacol. Exp. Ther. 1933 49 526 Bufo americanus J. Pharmacol. Exp. Ther. 1933 49 526 Bufo arenarum J. Pharmacol. Exp. Ther. 1933 49 1 Bufo bufo bufo J. Pharmacol. Exp. Ther. 1933 47 307 Bufo formosus J. Pharmacol. Exp. Ther. 1933 49 26 Bufo fowleri J. Pharmacol. Exp. Ther. 1933 49 526 Bufo marinus marinus J. Pharmacol. Exp. Ther. 1933 49 514 Bufo quercicus J. Pharmacol. Exp. Ther. 1933 49 526 Bufo regularis J. Pharmacol. Exp. Ther. 1933 49 503 Bufo valliceps J. Pharmacol. Exp. Ther. 1933 49 526 Bufo viridis J. Pharmacol. Exp. Ther. 1933 49 14