Tathicarpidae

Butler's frogfish

Tathicarpus butleri

Fish Reaching Fourteen Centimeters in Indonesian Waters

• Tropical
• Regional distribution
• Marine fish
• Pacific Ocean
• Oceania
• Southeast Asia
• Deep-bodied
• Compressed cross-section
• Small
• Tropical fish

Butler's frogfish, Butler's anglerfish or the blackspot anglerfish (Tathicarpus butleri), is a rare species of marine ray-finned fish, the only member of the subfamily Tathicarpinae of the family Antennariidae, the frogfishes. The only member of its genus, this species is the most derived member of its family and represents a separate lineage from all other frogfishes. It was previously thought to be the only member of the family Tathicarpidae, this name being proposed by Pamela B. Hart et al in 2022, but this lineage is now treated as a subfamily of the Antennariidae.