Philip A. Silverstone

• A revision of the poison-arrow frogs of the genus Dendrobates Wagler
• A revision of the poison-arrow frogs of the genus Phyllobates Bibron in Sagra (family Dendrobatidae)
• Status of certain frogs of the genus Colostethus
• Two new species of Colostethus (Amphibia, Anura, Dendrobatidae) from Colombia