Oskar
Heinroth

Berlin Aquarium


Ferdinand
Hochstetter

Universität Wien (Anatomy Tree)






Donald S.
Farner

University of Washington
?




Theodosius
Dobzhansky

Columbia University, Rockefeller University




Eberhard
Gwinner

MPI fur Ornithology




Oskar
Heinroth

Berlin Aquarium


Ferdinand
Hochstetter

Universität Wien (Anatomy Tree)






Donald S.
Farner

University of Washington
?




Theodosius
Dobzhansky

Columbia University, Rockefeller University




Eberhard
Gwinner

MPI fur Ornithology



Douglas G.
Barron

WSU
(Options)

Douglas BarronX