scientific article published in 1930

article by Frank E Watson et al published 1938 in American Museum Novitates

scientific article published in 1924

scientific article published in 1914

scientific article published in 1914

scientific article published in 1933

scientific article published in 1938

scientific article published in 1916

scientific article published in 1931

scientific article published in 1918

scientific article published in 1934

scientific article published in 1923

1923

scientific article published in 1917

scientific article published in 1922

scholarly article by Andrew Johnson Mutchler & Philip Jackson Darlington published 1937 in American Museum Novitates