Published in Proceedings of the California Academy of Sciences,, in 1889, in volume 2, pages 28-56

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Published in Memoirs of the Carnegie Museum, in 1917, in volume 7, pages 229-258

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Published in Biol. Bull., in 1921, in volume 41, pages 301-305

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Published in Annals of the Carnegie Museum, in 1915, in volume 9, pages 226-272

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Published in Proceedings of the United States National Museum, in 1891, in volume 14, pages 1-81

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Published in Memoirs of the Museum of Comparative Zoology, in 1921, in volume 43, pages 209-310

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Published in Proceedings of The American Philosophical Society, in 1922, in volume 61, issue 220, pages 204-211

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Published in Proceedings of the United States National Museum, in 1889, in volume 11, pages 463-466

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Published in Annals of the Carnegie Museum, in 1917, in volume 11, pages 297-303

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Published in Annals of the Carnegie Museum, in 1911, in volume 7, pages 214

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Published in Annals of the Carnegie Museum, in 1911, in volume 7, pages 214

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Published in Memoirs of the Carnegie Museum, in 1918, in volume 7, pages 259-398

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Published in Annals of the Carnegie Museum, in 1911, in volume 8, pages 164-181

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Published in Proceedings of the Washington Academy of Science, in 1907, in volume 8, pages 449-458

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Published in Proceedings of The American Philosophical Society, in 1918, in volume 56, pages 673-689

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Published in Annals and Magazine of Natural History, in 1911, in volume 7, pages 215-216

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Published in Proceedings of the American Philosophical Society, in 1919, in volume 58, pages 397-400

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Published in Mem. Mus. Comp. Zool., Harvard, in 1917, in volume 43, issue 1, pages 1-102

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Published in Annals of the Carnegie Museum, in 1917, in volume 11, pages 398-404

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Published in Proceedings of the United States National Museum, in 1887, in volume 9, pages 477-518

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Published in Annals of the Carnegie Museum, in 1913, in volume 8, pages 421-422

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Published in Annals of the Carnegie Museum, in 1913, in volume 8, pages 421-422

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Published in Proceedings of the Academy of Natural Sciences, Philadelphia, in 1903, in volume 55, pages 497-537

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Published in Proceedings of the United States National Museum, in 1887, in volume 10, pages 116

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Published in Proceedings of the United States National Museum, in 1893, in volume 16, pages 53-60

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Published in Proceedings of the United States National Museum, in 1907, in volume 32, pages 425-433

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Published in Copeia, in 1917, in volume 45, pages 54-56

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Published in Transactions of The American Microscopical Society, in 1896, in volume 17, pages 172-173

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Published in Proceedings of The United States National Museum, in 1892, in volume 15, pages 123-178

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Published in Pittsburgh Annals of the Carnegie Museum, in 1907, in volume 4, pages 110-157

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Published in Philadelphia Proceedings of the American Philosophical Society, in 1917, in volume 56, pages 690-703

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Published in Smithsonian Collections, in 1903, in volume 45, issue 12, pages 144-148

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Published in Proceedings of The United States National Museum, in 1885, in volume 8, pages 68-72

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Published in Proceedings of The United States National Museum, in 1887, in volume 10, pages 269-270

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Published in Indiana University studies, in 1920, in volume 7, pages 1-13

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Published in Transactions of The American Microscopical Society, in 1902, in volume 23, pages 5-18

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Published in Revue Suisse De Zoologie, in 1986, in volume 93, pages 979-1007

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Published in Proceedings of the United States National Museum, in 1907, in volume 33, pages 1-36

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Published in Memoirs Carnegie Museum, in 1912, in volume 5, pages 1-578

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Published in Proceedings of The American Philosophical Society, in 1921, in volume 60, issue 220, pages 503-523

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Published in Memoirs of the Carnegie Museum, in 1912, in volume 5, pages 1-578

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Published in Bulletin of the Museum of Comparative Zoology, in 1908, in volume 52, issue 6, pages 91-106

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Published in Proceedings of The United States National Museum, in 1887, in volume 10, pages 65-74

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Published in Revue Suisse De Zoologie, in 1964, in volume 71, pages 561-568

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in 1942, pages 1-494

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Published in Proceedings of the United States National Museum, in 1907, in volume 31, issue 1503, pages 659-668

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Published in Proceedings of The American Philosophical Society, in 1921, in volume 60, issue 220, pages 1-6

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Published in Revue Suisse De Zoologie, in 1965, in volume 72, pages 789-840

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Published in Bulletin du Muséum national d'histoire naturelle, in 1929, in volume 1, issue 1, pages 82-84

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Published in Jour Washington Acad Sci, in 1943, in volume 33, pages 273-275

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