Black-and-white ruffed lemur (<i>Varecia variegata</i>)
Gustav Mühel
1890
1890. Brehms Tierleben. Third, revised printing. Mammals, first volume. Leipzig and Wien: Bibliographisches Institut. Online at <a rel="nofollow" class="external free" href="https://books.google.com/books?id=sDgQAQAAMAAJ&amp;pg=PA280">https://books.google.com/books?id=sDgQAQAAMAAJ&amp;pg=PA280</a>