Watercolor, pastel, and graphite with scratching out on sketchbook paper
Overall: 7 5/8 x 13 1/8 in. ( 19.4 x 33.3 cm )
A view of the front of a bat that Audubon called Vespertilio noctincycius [?], LeConte. Includes a small graphite detail of the ear structure.
Inscribed at middle right in brown ink: "Vestpertilio / nocturcycius[?] Le Conte / V. Audubonii Harlan"
Due to ongoing research, information about this object is subject to change.