Siebenrock, F. — Über zwei Schildkröten aus Kamerun.

Wien, K. K. Naturhistorische Hofmuseum, 1907. 8vo (28.0 x 18.4 cm). Eight pp., one large text engraving, one lithographed plate. Original pictorial wrappers. = A morphological, anatomical and systematical work by the Viennese zoologist Friedrich Siebenrock (1853-1925) curator at the Natural History Museum of Vienna. Published in the Museum's Annalen, with a small, unrelated paper in the rear of the second volume. Uncut. Old stamp on front wrappers and title page, otherwise a very good clean copy. Rare.