Published in Bull. Mus. Comp. Zool. Harvard, in 1901, in volume 39, pages 1-14
Published in Bulletin of the Museum of Comparative Zoology, in 1901, in volume 39, pages 1-14
Published in Bulletin of The Museum At Harvard College, in 1901, in volume 36, pages 255-269
Published in Bulletin of The Museum At Harvard College, in 1901, in volume 39, pages 1-14