Published in Proceedings of The United States National Museum, in 1920, in volume 57, pages 53-96
Created: 2011-06-30, modified: 2017-01-06
Published in Proceedings of The United States National Museum, in 1920, in volume 57, pages 97-105
Created: 2011-06-30, modified: 2017-01-06
Published in Proceedings of The United States National Museum, in 1920, in volume 57, pages 107-152
Created: 2011-06-30, modified: 2017-01-06
Published in Proceedings of The United States National Museum, in 1920, in volume 57, pages 153-158
Created: 2011-06-30, modified: 2017-01-06
Published in Proceedings of The United States National Museum, in 1920, in volume 57, pages 159-161
Created: 2011-06-30, modified: 2017-01-06
Published in Proceedings of The United States National Museum, in 1920, in volume 57, pages 205-207
Created: 2011-06-30, modified: 2017-01-06
Published in Proceedings of the United States National Museum, in 1920, in volume 57, pages 209-231
Created: 2011-06-02, modified: 2017-01-06
Published in Proceedings of the United States National Museum, in 1920, in volume 57, pages 261-377
Created: 2010-11-20, modified: 2011-06-21
Published in Proceedings of The United States National Museum, in 1920, in volume 57, pages 379-396
Created: 2011-06-30, modified: 2017-01-06
Published in Proceedings of The United States National Museum, in 1920, in volume 57, pages 397-403
Created: 2011-06-30, modified: 2017-01-06
Published in Proceedings of The United States National Museum, in 1920, in volume 57, pages 475-495
Created: 2011-06-30, modified: 2011-06-30
Synopsis of the trematode family Heterophyidae with descriptions of a new genus and five new species
Published in Proceedings of The United States National Museum, in 1920, in volume 57, pages 527-573
Created: 2011-06-30, modified: 2017-01-06
Published in Proceedings of The United States National Museum, in 1920, in volume 57, pages 651-678
Created: 2011-06-30, modified: 2017-01-06
Published in Proceedings of the United States National Museum, in 1920, in volume 57, issue 2310, pages 163-203
Created: 2011-06-02, modified: 2012-09-27
Published in Proceedings of The United States National Museum, in 1920, in volume 57, issue 2323, pages 575-649
Created: 2011-06-30, modified: 2012-06-09
Published in Proceedings of The United States National Museum, in 1920, in volume 58, pages 1-5
Created: 2011-06-30, modified: 2017-01-06
Published in Proceedings of the United States National Museum, in 1920, in volume 58, pages 7-48
Created: 2011-06-02, modified: 2017-01-06
Published in Proceedings of The United States National Museum, in 1920, in volume 58, pages 49-82
Created: 2011-06-30, modified: 2017-01-06
Published in Proceedings of The United States National Museum, in 1920, in volume 58, pages 83-146
Created: 2011-06-30, modified: 2013-07-12
Published in Proceedings of The United States National Museum, in 1920, in volume 58, pages 147-153
Created: 2011-06-30, modified: 2017-01-06
Published in Proc. U.S. Natl. Mus, in 1920, in volume 58, pages 155-158
Created: 2011-06-04, modified: 2017-01-06
Published in Proceedings of The United States National Museum, in 1920, in volume 58, pages 159-176
Created: 2011-06-30, modified: 2017-01-06
Published in Proceedings of the United States National Museum, in 1920, in volume 58, pages 177-216
Created: 2009-12-26, modified: 2017-01-06
Published in Proceedings of the United States National Museum, in 1920, in volume 58, pages 293-300
Created: 2010-11-20, modified: 2017-01-06
Published in Proceedings of The United States National Museum, in 1920, in volume 58, pages 301-302
Created: 2011-06-30, modified: 2017-01-06
Published in Proceedings of The United States National Museum, in 1920, in volume 58, pages 303-305
Created: 2011-06-30, modified: 2017-01-06
Published in Proceedings of the United States National Museum, in 1920, in volume 58, pages 307-321
Created: 2010-01-14, modified: 2017-01-06
Published in Proceedings of The United States National Museum, in 1920, in volume 58, pages 323-326
Created: 2011-06-30, modified: 2017-01-06
Published in Proceedings of The United States National Museum, in 1920, in volume 58, pages 363-370
Created: 2011-06-30, modified: 2017-01-06
Published in Proceedings of The United States National Museum, in 1920, in volume 58, pages 371-379
Created: 2011-06-30, modified: 2017-01-06
Published in Proceedings of The United States National Museum, in 1920, in volume 58, pages 381-384
Created: 2011-06-30, modified: 2017-01-06
Published in Proceedings of the United States National Museum, in 1920, in volume 58, pages 385-435
Created: 2010-01-13, modified: 2017-01-06
Published in Proceedings of The United States National Museum, in 1920, in volume 58, pages 437-453
Created: 2011-06-30, modified: 2017-01-06
Published in Proceedings of The United States National Museum, in 1920, in volume 58, pages 455-466
Created: 2011-06-30, modified: 2012-11-17
Published in Proceedings of The United States National Museum, in 1920, in volume 58, pages 467-468
Created: 2011-06-30, modified: 2017-01-06
Published in Proceedings of The United States National Museum, in 1920, in volume 58, pages 469-482
Created: 2011-06-30, modified: 2017-01-06
Published in Proceedings of the United States National Museum, Washington, in 1920, in volume 58, pages 577-588
Created: 2010-11-20, modified: 2017-01-06
Published in Proceedings of The United States National Museum, in 1920, in volume 58, pages 589-607
Created: 2011-06-30, modified: 2017-01-06
Published in Proceedings of The United States National Museum, in 1920, in volume 58, issue 2333, pages 217-249
Created: 2011-06-30, modified: 2013-02-16
Published in Proc. U. S. Natl. Mus., in 1920, in volume 58, issue 2352, pages 609-620
Created: 2010-01-26, modified: 2017-01-06