Published in Proceedings of the California Academy of Sciences,, in 1889, in volume 2, pages 28-56
Created: 2010-02-09, modified: 2023-02-16![](https://www.biodiversitylibrary.org/pagethumb/925864,60,60)
Published in Biol. Bull., in 1921, in volume 41, pages 301-305
Created: 2011-05-20, modified: 2011-09-12![](https://www.biodiversitylibrary.org/pagethumb/40785435,60,60)
Published in Revue Suisse De Zoologie, in 1964, in volume 71, pages 561-568
Created: 2012-11-11, modified: 2023-02-16![](https://www.biodiversitylibrary.org/pagethumb/40783049,60,60)
Published in Revue Suisse De Zoologie, in 1965, in volume 72, pages 789-840
Created: 2012-11-11, modified: 2016-01-22![](https://www.biodiversitylibrary.org/pagethumb/7542719,60,60)
Published in Proceedings of the United States National Museum, in 1891, in volume 14, pages 1-81
Created: 2010-01-14, modified: 2017-01-06![](https://www.biodiversitylibrary.org/pagethumb/7608733,60,60)
Published in Proceedings of the United States National Museum, in 1889, in volume 11, pages 463-466
Created: 2010-01-14, modified: 2017-01-06![](https://www.biodiversitylibrary.org/pagethumb/4372355,60,60)
Published in Mem. Mus. Comp. Zool., Harvard, in 1917, in volume 43, issue 1, pages 1-102
Created: 2010-01-17, modified: 2011-10-03![](https://www.biodiversitylibrary.org/pagethumb/7314231,60,60)
Published in Memoirs of the Carnegie Museum, in 1917, in volume 7, pages 229-258
Created: 2010-02-09, modified: 2011-06-21![](https://www.biodiversitylibrary.org/pagethumb/9781785,60,60)
Published in Annals of the Carnegie Museum, in 1915, in volume 9, pages 226-272
Created: 2011-05-28, modified: 2011-06-21![](https://www.biodiversitylibrary.org/pagethumb/4372780,60,60)
Published in Memoirs of the Museum of Comparative Zoology, in 1921, in volume 43, pages 209-310
Created: 2011-05-19, modified: 2011-06-21![](https://www.biodiversitylibrary.org/pagethumb/26866805,60,60)
Published in Proceedings of The American Philosophical Society, in 1922, in volume 61, issue 220, pages 204-211
Created: 2017-01-01, modified: 2017-01-01![](https://www.biodiversitylibrary.org/pagethumb/9479693,60,60)
Published in Annals of the Carnegie Museum, in 1917, in volume 11, pages 297-303
Created: 2010-02-09, modified: 2021-04-05![](https://www.biodiversitylibrary.org/pagethumb/15646756,60,60)
Published in Copeia, in 1917, in volume 45, pages 54-56
Created: 2013-03-07, modified: 2013-03-08![](https://www.biodiversitylibrary.org/pagethumb/34572517,60,60)
Published in Proceedings of the Biological Society of Washington, in 1995, in volume 108, pages 679-686
Created: 2011-05-06, modified: 2011-06-21![](https://www.biodiversitylibrary.org/pagethumb/9956837,60,60)
Published in Annals of the Carnegie Museum, in 1911, in volume 7, pages 214
Created: 2010-02-09, modified: 2021-04-05![](https://www.biodiversitylibrary.org/pagethumb/9956837,60,60)
Published in Annals of the Carnegie Museum, in 1911, in volume 7, pages 214
Created: 2011-05-27, modified: 2021-04-05![](https://www.biodiversitylibrary.org/pagethumb/15737012,60,60)
Published in Proceedings of The United States National Museum, in 1892, in volume 15, pages 123-178
Created: 2011-06-30, modified: 2017-01-06![](https://www.biodiversitylibrary.org/pagethumb/39791024,60,60)
Published in Pittsburgh Annals of the Carnegie Museum, in 1907, in volume 4, pages 110-157
Created: 2018-05-07, modified: 2018-05-07![](https://www.biodiversitylibrary.org/pagethumb/7314281,60,60)
Published in Memoirs of the Carnegie Museum, in 1918, in volume 7, pages 259-398
Created: 2010-02-09, modified: 2011-06-21![](https://www.biodiversitylibrary.org/pagethumb/9480140,60,60)
Published in Annals of the Carnegie Museum, in 1911, in volume 8, pages 164-181
Created: 2011-05-28, modified: 2021-04-05![](https://www.biodiversitylibrary.org/pagethumb/7228213,60,60)
Published in Philadelphia Proceedings of the American Philosophical Society, in 1917, in volume 56, pages 690-703
Created: 2016-12-19, modified: 2017-01-01![](https://www.biodiversitylibrary.org/pagethumb/34571855,60,60)
Published in Proceedings of The Biological Society of Washington, in 1995, in volume 108, pages 29-44
Created: 2011-04-14, modified: 2011-06-21![](https://www.biodiversitylibrary.org/pagethumb/7228119,60,60)
Published in Proceedings of The American Philosophical Society, in 1918, in volume 56, pages 673-689
Created: 2011-05-05, modified: 2017-01-01![](https://www.biodiversitylibrary.org/pagethumb/15383008,60,60)
Published in Proceedings of The United States National Museum, in 1885, in volume 8, pages 68-72
Created: 2011-06-30, modified: 2017-01-06![](https://www.biodiversitylibrary.org/pagethumb/8810148,60,60)
Published in Smithsonian Collections, in 1903, in volume 45, issue 12, pages 144-148
Created: 2013-06-11, modified: 2013-06-11![](https://www.biodiversitylibrary.org/pagethumb/8875091,60,60)
Published in Proceedings of the Washington Academy of Science, in 1907, in volume 8, pages 449-458
Created: 2010-02-09, modified: 2023-02-16![](https://www.biodiversitylibrary.org/pagethumb/22098176,60,60)
Published in Annals and Magazine of Natural History, in 1911, in volume 7, pages 215-216
Created: 2011-05-07, modified: 2011-09-21![](https://www.biodiversitylibrary.org/pagethumb/39690534,60,60)
Published in Jour Washington Acad Sci, in 1943, in volume 33, pages 273-275
Created: 2014-01-30, modified: 2014-01-30![](https://www.biodiversitylibrary.org/pagethumb/55322890,60,60)
Published in Bulletin du Muséum national d'histoire naturelle, in 1929, in volume 1, issue 1, pages 82-84
Created: 2021-12-15, modified: 2021-12-15![](https://www.biodiversitylibrary.org/pagethumb/6646227,60,60)
Published in Proceedings of the American Philosophical Society, in 1919, in volume 58, pages 397-400
Created: 2010-02-09, modified: 2023-02-16![](https://www.biodiversitylibrary.org/pagethumb/9479814,60,60)
Published in Annals of the Carnegie Museum, in 1917, in volume 11, pages 398-404
Created: 2010-02-09, modified: 2021-04-05![](https://www.biodiversitylibrary.org/pagethumb/7601243,60,60)
Published in Proceedings of the United States National Museum, in 1887, in volume 9, pages 477-518
Created: 2010-01-14, modified: 2017-01-06![](https://www.biodiversitylibrary.org/pagethumb/9480451,60,60)
Published in Annals of the Carnegie Museum, in 1913, in volume 8, pages 421-422
Created: 2010-02-09, modified: 2021-04-05![](https://www.biodiversitylibrary.org/pagethumb/9480451,60,60)
Published in Annals of the Carnegie Museum, in 1913, in volume 8, pages 421-422
Created: 2011-05-28, modified: 2021-04-05![](https://www.biodiversitylibrary.org/pagethumb/45385708,60,60)
Published in Indiana University studies, in 1920, in volume 7, pages 1-13
Created: 2017-07-25, modified: 2017-07-25![](https://www.biodiversitylibrary.org/pagethumb/27042700,60,60)
Published in Transactions of The American Microscopical Society, in 1902, in volume 23, pages 5-18
Created: 2013-03-11, modified: 2013-03-11![](https://www.biodiversitylibrary.org/pagethumb/7485290,60,60)
Published in Proceedings of the United States National Museum, in 1887, in volume 10, pages 116
Created: 2010-01-14, modified: 2017-01-06![](https://www.biodiversitylibrary.org/pagethumb/15780283,60,60)
Published in Proceedings of the United States National Museum, in 1893, in volume 16, pages 53-60
Created: 2010-01-14, modified: 2017-01-06![](https://www.biodiversitylibrary.org/pagethumb/15664359,60,60)
Published in Proceedings of the United States National Museum, in 1907, in volume 32, pages 425-433
Created: 2010-01-14, modified: 2017-01-06![](https://www.biodiversitylibrary.org/pagethumb/41154160,60,60)
Published in Revue Suisse De Zoologie, in 1986, in volume 93, pages 979-1007
Created: 2013-01-24, modified: 2023-02-16![](https://www.biodiversitylibrary.org/pagethumb/27058007,60,60)
Published in Transactions of The American Microscopical Society, in 1896, in volume 17, pages 172-173
Created: 2013-03-11, modified: 2013-03-11![](https://www.biodiversitylibrary.org/pagethumb/7124786,60,60)
Published in Proceedings of The American Philosophical Society, in 1921, in volume 60, issue 220, pages 503-523
Created: 2017-01-01, modified: 2017-01-01![](https://www.biodiversitylibrary.org/pagethumb/4336832,60,60)
Published in Bulletin of the Museum of Comparative Zoology, in 1908, in volume 52, issue 6, pages 91-106
Created: 2010-02-15, modified: 2021-04-05![](https://www.biodiversitylibrary.org/pagethumb/7485201,60,60)
Published in Proceedings of The United States National Museum, in 1887, in volume 10, pages 65-74
Created: 2011-06-30, modified: 2017-01-06![](https://www.biodiversitylibrary.org/pagethumb/59522757,60,60)
Published in Revue suisse de Zoologie, in 2020, in volume 124, issue 1, pages 67-71
Created: 2020-07-15, modified: 2020-07-15![](https://www.biodiversitylibrary.org/pagethumb/7485595,60,60)
Published in Proceedings of The United States National Museum, in 1887, in volume 10, pages 269-270
Created: 2011-06-30, modified: 2017-01-06![](https://www.biodiversitylibrary.org/pagethumb/11901694,60,60)
in 1942, pages 1-494
Created: 2013-08-27, modified: 2023-02-16![](https://www.biodiversitylibrary.org/pagethumb/7737684,60,60)
Published in Proceedings of the United States National Museum, in 1907, in volume 31, issue 1503, pages 659-668
Created: 2010-01-14, modified: 2016-12-29![](https://www.biodiversitylibrary.org/pagethumb/6600861,60,60)
Published in Proceedings of the Academy of Natural Sciences, Philadelphia, in 1903, in volume 55, pages 497-537
Created: 2010-02-09, modified: 2021-04-05![](https://www.biodiversitylibrary.org/pagethumb/7124262,60,60)
Published in Proceedings of The American Philosophical Society, in 1921, in volume 60, issue 220, pages 1-6
Created: 2017-01-01, modified: 2017-01-01