Career
His collection was sold to Otto Staudinger and Andreas Bang-Haas
Based on Hahnel"s collection of frogs from Yurimaguas, Peru, George Albert Boulenger described eight new species and named one of them, Ameerega hahneli, after him.
His collection was sold to Otto Staudinger and Andreas Bang-Haas
Based on Hahnel"s collection of frogs from Yurimaguas, Peru, George Albert Boulenger described eight new species and named one of them, Ameerega hahneli, after him.