Genera insectorum - Wytsman, P. (Philogène) 1866 -1925 (L. Desmet-Verteneuil [etc.], 1902)

The genera of North American plants : and a catalogue of the species, to the year 1817 - Nuttall, Thomas, 1786 -1859 (Printed for the Author by D. Heartt, 1818)

The genera of recent and fossil shells, for the use of students in conchology and geology - Sowerby, James, 1757 -1822 (1820)

The genera of recent Mollusca: arranged according to their organization - Adams, Henry, 1813 -1877 (J. Van Voorst, 1858)