Published in Proceedings of the United States National Museum, in 1931, in volume 80, issue 2917, pages 1-2
Published in Proceedings of the United States National Museum, in 1931, in volume 77, issue 2840, pages 1-34
Published in Proceedings of the United States National Museum, in 1931, in volume 77, issue 2840, pages 1-45
Published in Proceedings of the United States National Museum, in 1931, in volume 80, pages 1-12
Published in Proceedings of the United States National Museum, in 1931, in volume 80, issue 2908, pages 1-19
Published in Proceedings of The United States National Museum, in 1931, in volume 79, pages 1-5
Published in Proceedings of The United States National Museum, in 1931, in volume 80, pages 1-4
Published in Proceedings of The United States National Museum, in 1931, in volume 80, pages 1-24
Published in Proceedings of The United States National Museum, in 1931, in volume 80, pages 1-91
Published in Proceedings of The United States National Museum, in 1931, in volume 80, pages 1-10
Published in Proceedings of The United States National Museum, in 1931, in volume 80, pages 1-31
Published in Proceedings of the United States National Museum, in 1931, in volume 79, issue 2886, pages 1-54
Published in Proceedings of the United States National Museum, in 1931, in volume 79, issue 2877, pages 1-11
Published in Proceedings of the United States National Museum, in 1931, in volume 79, issue 2875, pages 1-6
Published in Proceedings of the United States National Museum, in 1931, in volume 79, pages 1-6
Published in Proceedings of the United States National Museum, in 1931, in volume 78, issue 2866, pages 1-9
Published in Proceedings of the United States National Museum, in 1931, in volume 79, issue 2884, pages 2-5
Published in Proceedings of the United States National Museum, in 1931, in volume 79, issue 2873, pages 2-49
Published in Proceedings of the United States National Museum, in 1931, in volume 79, issue 2885, pages 1-8
Published in Proceedings of the United States National Museum, in 1931, in volume 79, issue 2890, pages 1-9
Published in Proceedings of the United States National Museum, in 1931, in volume 79, issue 2891, pages 1-20