– Alexander Emanuel Agassiz (1835–1910) mostly marine animals* Agenjo – Ramon Agenjo Cecilia (1908–1984)* Aguilera – Orangel Antonio Aguilera Socorro* D.R.de Aguilera – Dione Rodrigues de Aguilera* Ahl, E.Ahl – Ernst Ahl (1898–1943) herpetology, ichthyology* J.N.Ahl, Ahl – Jonas Nicolaus Ahl* Ahlquist – Jon Edward Ahlquist (fl.