Published in Proceedings of the New England Zoölogical Club, in 1920, in volume 7, pages 61-63

Published in Proc. New England Zool. Club, in 1920, in volume 7, pages 33-34

Published in Proceedings of the New England Zoological Club, in 1920, in volume 7, pages 55-59

Published in Proceedings of the New England Zoological Club, in 1920, in volume 7, pages 65-78