Hyatt, A. — Genesis of the Arietidae.

1889 xi, 238 p., 6 folding tables, 14 mostly heliographed plates, 4to. Disbound. A major revision with several new taxa. Includes the interesting folded table of the genealogy of the Arietidae in the Basin of South Germany after Quenstedt, Frans, Oppel and their collections. Published in the Institute's "Contribution to knowledge" series. Library stamp on title and verso of plates, otherwise good.