See quotation.
1805. There is also a curious fish called the Spade-Fish. It is furnished with a bony weapon projecting from the nose, from six to ten inches in length, and from two to five in width; thin and like a narrow shovel. This appears designed to enable its possessor to dig up its prey from the mud.—Thaddeus M. Harris, ‘State of Ohio,’ pp. 116–7. (Italics in the original.)
