Published in Bulletin of The Museum of Comparative Zoology, in 1931, in volume 71, pages 293-345

Published in Bulletin of the Museum of Comparative Zoology, in 1931, in volume 72, pages 37-52

Published in Bulletin of the Museum of Comparative Zoology, in 1931, in volume 72, pages 55-89

Published in Bulletin of the Museum of Comparative Zoology (Harvard University), in 1931, in volume 55, pages 165-213

Published in Bulletin of Museum of Comparative Zoology, in 1931, in volume 72, pages 205

Published in Bulletin of The Museum of Comparative Zoology, in 1931, in volume 71, pages 349-421

Published in Bulletin of The Museum of Comparative Zoology, in 1931, in volume 72, pages 195-202

Published in Bulletin of the Museum of Comparative Zoology at Harvard College, in 1931, in volume 71, issue 4, pages 229-289