- Abbass
- Abrard
- Adachi
- Aegidius, Kolb
- Agassiz
- Agassiz, Alexander
- Alfaro, Arley
- Allison, H.
- Allix, Henri
- Altena, G.M.
- Alvarado, Francisco
- Angulo, Ramon
- Anker, Arthur
- Armstrong, H.
- Atlantic
- Aubrecht
- Aucoin, Serge
- Avila, Socorro
- Ayoub-Hannaa
- Bandel
- Basse
- Batley, B.
- Benecke
- Bernard, Tursch
- Berrocal, Alcides
- Bertling
- Besairie
- Blodgett
- Blum, D.
- Bohaty
- Bonci
- Bonito, V.
- Boriès
- Boucault, Eduard
- Bouchet, Dayrat
- Boucot
- Braithwaite
- Braun, C.
- Breitenberg
- Brenes, Frank Alonso González
- Brezinski
- Bronn, Heinrich Georg
- Bryce, C.W.
- Bryce, C.
- Buddington
- Buddington, A.F.
- Buddinton, A.F.
- Butot, L.J.M.
- Böhm
- Caballer, Manuel