In the process of inventorying the copepod collection assembled by P.A. Chappuis and hosted at the ”Emil Racoviţă” Institute of Speleology (Cluj, Romania), part of his material originating from the US was located. In 5 vials and on 6 slides are representatives of 9 different species: 7 Harpacticoida and 2 Cyclopoida. A list of the species, numbers of specimens available, and their condition is presented. Some of them had to be annotated as syntypes. Most of the cyclopids mentioned were donated to F. Kiefer and are currently hosted in the collection at Karlsruhe, Germany. Three representatives of the genus Moraria T. & A. Scott 1893, namely M. cristata Chappuis 1929, M. affinis Chappuis 1927, and M. americana Chappuis 1927, the latter currently known as M. laurentica Willey 1927, are reexamined and redescribed. Their diagnostic features, compared to the other known New World Moraria species, are summarized in tabular form to facilitate identification.