Authors: M L Leach

Published in Nautilis, in 1890, in volume 4, pages 31-32

Created: 2013-09-28, modified: 2013-09-28

Authors: Isaac Lea

Published in Annals And Magazine of Natural History, in 1869, in volume 3, pages 466-467

Created: 2011-09-28, modified: 2011-09-28

Authors: L D Campbell | S C Campbell

Published in American Malacological Bulletin, in 1986, in volume 4, issue 1, pages 39-42

Created: 2014-09-21, modified: 2014-09-21

Authors: Isaac Lea

Published in Transactions of the American Philosophical Society, in 1841, in volume 7, pages 73-74

Created: 2026-05-26, modified: 2026-05-26

Authors: Joseph Leidy

Published in Proceedings of The American Philosophical Society, in 1887, in volume 24, issue 126, pages 400-403

Created: 2017-01-01, modified: 2023-02-16

Authors: Isaac Lea

Published in Transactions of the American Philosophical Society, in 1841, in volume 7, pages 455-465

Created: 2026-05-26, modified: 2026-05-26

Authors: Isaac Lea

Published in Transactions of the American Philosophical Society, in 1839, in volume 6, pages 1-154

Created: 2026-05-26, modified: 2026-05-26

Authors: Isaac Lea

Published in Transactions of the American Philosophical Society, in 1843, in volume 8, pages 163-250

Created: 2026-05-26, modified: 2026-05-26

Authors: Isaac Lea

Published in Transactions of the American Philosophical Society, in 1846, in volume 9, issue 3, pages 275-282

Created: 2026-05-26, modified: 2026-05-26

Authors: Isaac Lea

Published in Transactions of the American Philosophical Society, in 1853, in volume 10, pages 253-294

Created: 2026-05-26, modified: 2026-05-26

Authors: Isaac Lea

Published in Transactions of the American Philosophical Society, in 1853, in volume 10, pages 67-101

Created: 2026-05-26, modified: 2026-05-26

Authors: Isaac Lea

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1866, in volume 18, pages 110-113

Created: 2013-03-02, modified: 2013-03-02

Authors: Isaac Lea

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1864, in volume 16, pages 3-5

Created: 2013-03-02, modified: 2013-03-02

Authors: Isaac Lea

Published in Transactions of the American Philosophical Society, in 1846, in volume 9, issue 1, pages 1-31

Created: 2026-05-26, modified: 2026-05-26

Authors: Isaac Lea

Published in Transactions of the American Philosophical Society, in 1834, in volume 4, pages 122-123

Created: 2026-05-30, modified: 2026-05-30

Authors: Isaac Lea

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1866, in volume 18, pages 133

Created: 2013-03-02, modified: 2013-03-02

Authors: Isaac Lea

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1868, in volume 20, pages 145-146

Created: 2013-03-02, modified: 2013-03-02

Authors: Isaac Lea

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1866, in volume 18, pages 33-35

Created: 2013-03-02, modified: 2013-03-02

Authors: Isaac Lea

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1868, in volume 20, pages 160-161

Created: 2013-03-02, modified: 2013-03-02

Authors:

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1899, in volume 51, pages 71-82

Created: 2013-03-02, modified: 2013-03-02

Authors: Isaac Lea

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 154-156

Created: 2013-03-02, modified: 2013-03-02

Authors: Isaac Lea

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 190

Created: 2013-03-02, modified: 2013-03-02

Authors: Isaac Lea

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1873, in volume 25, pages 422-423

Created: 2013-03-02, modified: 2013-03-02

Authors: Isaac Lea

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1865, in volume 17, pages 88-89

Created: 2013-03-02, modified: 2013-03-02

Authors:

Published in Veliger, in 1989, in volume 32, pages 296-301

Created: 2013-10-23, modified: 2013-10-23

Authors: Isaac Lea

Published in Transactions of the American Philosophical Society, in 1853, in volume 10, pages 307-317

Created: 2026-05-26, modified: 2026-05-26

Authors: Isaac Lea

Published in Transactions of the American Philosophical Society, in 1837, in volume 5, pages 23-119

Created: 2026-05-30, modified: 2026-05-30

Authors: Isaac Lea

Published in Transactions of the American Philosophical Society, in 1834, in volume 4, pages 63-121

Created: 2026-05-30, modified: 2026-05-30

Authors: Isaac Lea

Published in Transactions of the American Philosophical Society, in 1841, in volume 7, pages 251-260

Created: 2026-05-26, modified: 2026-05-26

Authors:

Published in Annals And Magazine of Natural History, in 1852, in volume 10, pages 136-138

Created: 2011-09-27, modified: 2011-09-27

Authors: Isaac Lea

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1862, in volume 14, pages 262-272

Created: 2013-03-02, modified: 2013-03-02

Authors: Isaac Lea

Published in Transactions of the American Philosophical Society, in 1853, in volume 10, pages 303

Created: 2026-05-26, modified: 2026-05-26

Authors: Isaac Lea

Published in Transactions of the American Philosophical Society, in 1853, in volume 10, pages 295-302

Created: 2026-05-26, modified: 2026-05-26

Authors: Isaac F Holton

in 1848, pages 1-2

Created: 2017-06-24, modified: 2017-06-24

Authors: Isaac F Holton

in 1852, pages 1-2

Created: 2017-06-24, modified: 2017-06-24

Authors: Isaac F Holton

in 1856, pages 1-2

Created: 2017-06-24, modified: 2017-06-24

Authors: Isaac F Holton

in 1857, pages 1-2

Created: 2017-06-24, modified: 2017-06-24

Authors: Isaac F Holton

in 1857, pages 1-2

Created: 2017-06-24, modified: 2017-06-24

Authors: Isaac B Balfour

Published in Asa Gray correspondence. Senders B-Ba, in 1885, pages 1-6

Created: 2017-06-24, modified: 2017-06-24

Authors: Isaac B Balfour

Published in Asa Gray correspondence. Senders B-Ba, in 1886, pages 1-6

Created: 2017-06-24, modified: 2017-06-24

Authors: Isaac Lea

Published in Transactions of the American Philosophical Society, in 1830, in volume 3, pages 259-273

Created: 2026-05-30, modified: 2026-05-30

Authors: Isaac B Balfour

Published in Asa Gray correspondence. Senders B-Ba, in 1891, pages 1-2

Created: 2017-06-24, modified: 2017-06-24

Authors: F S Collins

Published in Rhodora, in 1903, in volume 5, issue 57, pages 219-220

Created: 2016-07-19, modified: 2023-02-16

Authors: Richard L Johnson

Published in Special occasional publication. Department of Mollusks, Museum of Comparative Zoology, Harvard University, in 1974, in volume 2, pages 1-159

Created: 2013-01-14, modified: 2013-01-14

Authors: Isaac C Martindale

Published in Botanical Gazette, in 1876, in volume 2, issue 1, pages 60

Created: 2017-03-14, modified: 2017-03-14

Authors: Isaac Ginsburg

Published in Zoologica, in 1940, in volume 25, issue 2, pages 15-31

Created: 2016-11-07, modified: 2025-12-17

Authors: B Walker

Published in Nautilis, in 1916, in volume 29, pages 114-116

Created: 2013-09-28, modified: 2013-09-28

Authors: C Goodrich

Published in Nautilis, in 1917, in volume 30, pages 122-124

Created: 2013-09-28, modified: 2013-09-28

Authors: J P E Morrison

Published in Nautilis, in 1943, in volume 57, pages 14-16

Created: 2013-09-28, modified: 2013-09-28

Authors: Isaac C Martindale

Published in Botanical Gazette, in 1877, in volume 2, issue 10, pages 127-128

Created: 2017-03-14, modified: 2017-03-14