Published in Proceedings of the Malacological Society of London, in 1906, in volume 7, issue 3, pages 196
Created: 2016-11-05, modified: 2020-03-29![](https://www.biodiversitylibrary.org/pagethumb/6601046,60,60)
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1903, in volume 55, pages 790-791
Created: 2013-03-02, modified: 2013-03-02![](https://www.biodiversitylibrary.org/pagethumb/6389443,60,60)
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1899, in volume 51, pages 258
Created: 2013-03-02, modified: 2013-03-02![](https://www.biodiversitylibrary.org/pagethumb/15600572,60,60)
Published in Nachrichtsblatt der Deutschen Malakozoologischen Gesellschaft, in 1892, in volume 24, pages 69-73
Created: 2016-09-15, modified: 2016-09-15![](https://www.biodiversitylibrary.org/pagethumb/29980381,60,60)
Published in Annals And Magazine of Natural History, in 1901, in volume 8, pages 325-329
Created: 2011-09-23, modified: 2011-09-23![](https://www.biodiversitylibrary.org/pagethumb/1970836,60,60)
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1919, in volume 71, pages 206
Created: 2013-03-02, modified: 2013-03-02![](https://www.biodiversitylibrary.org/pagethumb/7766779,60,60)
Published in Proceedings of The United States National Museum, in 1924, in volume 65, pages 1-3
Created: 2011-06-30, modified: 2017-01-06![](https://www.biodiversitylibrary.org/pagethumb/30347022,60,60)
Published in Proceedings of the Malacological Society of London, in 1922, in volume 15, issue 1, pages 39-40
Created: 2016-11-05, modified: 2020-03-29![](https://www.biodiversitylibrary.org/pagethumb/6600977,60,60)
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1903, in volume 55, pages 626-629
Created: 2013-03-02, modified: 2013-03-02![](https://www.biodiversitylibrary.org/pagethumb/6390262,60,60)
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1890, in volume 42, pages 441-443
Created: 2013-03-02, modified: 2013-03-02![](https://www.biodiversitylibrary.org/pagethumb/24694436,60,60)
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1900, in volume 52, pages 556-560
Created: 2013-03-02, modified: 2013-03-02![](https://www.biodiversitylibrary.org/pagethumb/7562829,60,60)
Published in Proceedings of The United States National Museum, in 1921, in volume 59, pages 111-115
Created: 2011-06-30, modified: 2017-01-06![](https://www.biodiversitylibrary.org/pagethumb/6366824,60,60)
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1904, in volume 56, pages 3-37
Created: 2013-03-01, modified: 2013-03-01![](https://www.biodiversitylibrary.org/pagethumb/24694265,60,60)
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1900, in volume 52, pages 385-394
Created: 2013-03-02, modified: 2013-03-02![](https://www.biodiversitylibrary.org/pagethumb/1675990,60,60)
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1896, in volume 48, pages 581-582
Created: 2013-03-02, modified: 2013-03-02![](https://www.biodiversitylibrary.org/pagethumb/26283859,60,60)
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1911, in volume 63, pages 438-439
Created: 2013-03-02, modified: 2013-03-02![](https://www.biodiversitylibrary.org/pagethumb/3819815,60,60)
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1920, in volume 72, pages 360-382
Created: 2013-03-02, modified: 2013-03-02![](https://www.biodiversitylibrary.org/pagethumb/1854566,60,60)
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1897, in volume 49, pages 290-298
Created: 2013-03-02, modified: 2013-03-02![](https://www.biodiversitylibrary.org/pagethumb/3819747,60,60)
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1920, in volume 72, pages 296-328
Created: 2013-03-02, modified: 2013-03-02![](https://www.biodiversitylibrary.org/pagethumb/5442135,60,60)
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1917, in volume 69, pages 207-230
Created: 2013-03-02, modified: 2013-03-02![](https://www.biodiversitylibrary.org/pagethumb/1675426,60,60)
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1896, in volume 48, pages 21-24
Created: 2013-03-02, modified: 2013-03-02![](https://www.biodiversitylibrary.org/pagethumb/26307359,60,60)
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1913, in volume 65, pages 380-393
Created: 2013-03-02, modified: 2013-03-02![](https://www.biodiversitylibrary.org/pagethumb/25122912,60,60)
Published in Annals And Magazine of Natural History, in 1895, in volume 16, pages 424-427
Created: 2011-09-23, modified: 2011-09-23![](https://www.biodiversitylibrary.org/pagethumb/15798089,60,60)
Published in Proceedings of the Malacological Society of London, in 1901, in volume 4, issue 4, pages 151-157
Created: 2016-11-05, modified: 2020-03-29![](https://www.biodiversitylibrary.org/pagethumb/10309340,60,60)
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1902, in volume 54, pages 233-240
Created: 2013-03-02, modified: 2013-03-02![](https://www.biodiversitylibrary.org/pagethumb/1816650,60,60)
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1909, in volume 61, pages 367-368
Created: 2013-03-02, modified: 2013-03-02![](https://www.biodiversitylibrary.org/pagethumb/29980071,60,60)
Published in Annals And Magazine of Natural History, in 1901, in volume 8, pages 1-9
Created: 2011-09-22, modified: 2011-09-22![](https://www.biodiversitylibrary.org/pagethumb/24694329,60,60)
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1900, in volume 52, pages 449-459
Created: 2013-03-02, modified: 2013-03-02![](https://www.biodiversitylibrary.org/pagethumb/1854799,60,60)
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1897, in volume 49, pages 503-504
Created: 2013-03-02, modified: 2013-03-02![](https://www.biodiversitylibrary.org/pagethumb/6389352,60,60)
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1899, in volume 51, pages 185-187
Created: 2013-03-02, modified: 2013-03-02![](https://www.biodiversitylibrary.org/pagethumb/1647758,60,60)
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1898, in volume 50, pages 264-286
Created: 2013-03-02, modified: 2013-03-02![](https://www.biodiversitylibrary.org/pagethumb/26370165,60,60)
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1892, in volume 44, pages 387-404
Created: 2013-03-02, modified: 2013-03-02![](https://www.biodiversitylibrary.org/pagethumb/10089718,60,60)
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1901, in volume 53, pages 647-656
Created: 2013-03-02, modified: 2013-03-02![](https://www.biodiversitylibrary.org/pagethumb/10089496,60,60)
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1901, in volume 53, pages 465-485
Created: 2013-03-02, modified: 2013-03-02![](https://www.biodiversitylibrary.org/pagethumb/10089693,60,60)
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1901, in volume 53, pages 622-646
Created: 2013-03-02, modified: 2013-03-02![](https://www.biodiversitylibrary.org/pagethumb/24694441,60,60)
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1900, in volume 52, pages 561-567
Created: 2013-03-02, modified: 2013-03-02![](https://www.biodiversitylibrary.org/pagethumb/24694462,60,60)
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1900, in volume 52, pages 582-611
Created: 2013-03-02, modified: 2013-03-02![](https://www.biodiversitylibrary.org/pagethumb/6600629,60,60)
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1903, in volume 55, pages 315-319
Created: 2013-03-02, modified: 2013-03-02![](https://www.biodiversitylibrary.org/pagethumb/6389588,60,60)
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1899, in volume 51, pages 403-405
Created: 2013-03-02, modified: 2013-03-02![](https://www.biodiversitylibrary.org/pagethumb/1975991,60,60)
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1895, in volume 47, pages 347-350
Created: 2013-03-02, modified: 2013-03-02![](https://www.biodiversitylibrary.org/pagethumb/1675705,60,60)
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1896, in volume 48, pages 339-350
Created: 2013-03-02, modified: 2013-03-02![](https://www.biodiversitylibrary.org/pagethumb/10309648,60,60)
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1902, in volume 54, pages 517-533
Created: 2013-03-02, modified: 2013-03-02![](https://www.biodiversitylibrary.org/pagethumb/1651105,60,60)
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1921, in volume 73, pages 305-435
Created: 2013-03-02, modified: 2013-03-02![](https://www.biodiversitylibrary.org/pagethumb/15556298,60,60)
Published in Proceedings of The United States National Museum, in 1909, in volume 37, pages 63-74
Created: 2011-06-30, modified: 2017-01-06![](https://www.biodiversitylibrary.org/pagethumb/26283757,60,60)
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1911, in volume 63, pages 336-373
Created: 2013-03-02, modified: 2013-03-02![](https://www.biodiversitylibrary.org/pagethumb/1856563,60,60)
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1914, in volume 66, pages 209-213
Created: 2013-03-02, modified: 2013-03-02![](https://www.biodiversitylibrary.org/pagethumb/1675669,60,60)
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1896, in volume 48, pages 315-338
Created: 2013-03-02, modified: 2013-03-02![](https://www.biodiversitylibrary.org/pagethumb/10309544,60,60)
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1902, in volume 54, pages 413-442
Created: 2013-03-02, modified: 2013-03-02![](https://www.biodiversitylibrary.org/pagethumb/19243116,60,60)
Published in Annals And Magazine of Natural History, in 1891, in volume 7, pages 184-186
Created: 2011-09-23, modified: 2011-09-23![](https://www.biodiversitylibrary.org/pagethumb/15798100,60,60)
Published in Proceedings of the Malacological Society of London, in 1901, in volume 4, issue 4, pages 158-162
Created: 2016-11-05, modified: 2020-03-29