Jour. Acad. Nat. Sci. Philadelphia 4(2): 232-236. Pl. 14. Read Sept. 7, 1824.

–P. 236: {"There is also deposited in the Cabinet of the Academy, from the western shore of Maryland, a cervical and a caudal vertebra of a gigantic species of fossil Manatus; the vertical diameter of the former is nine inches and a half; the transverse diameter eleven inches. A fossil rib of the Manatus, was also discovered by Mr. Finch, at the same locality."} These remains were the basis for "Manatus giganteus" DeKay, 1842; however, at least the vertebrae were cetacean rather than sirenian (see Kellogg, 1966: 66). The rib is presumably the specimen collected by Finch (1833: 229); its correct locality, however, was Stratford, Virginia (see also Dooley, 2005: 32).