Permian Gastropoda of the Southwestern United States: 1 de Yochelson, Ellis L - 1956

New York: American Museum of Natural History, 1956. Part 1: Euomphalacea, Trochonematacea, Pseudophoracea, Anomphalacea, Craspedostomatacea, and Platyceratacea. Fine condition. Flat spine. NO creases. NO chips. NO tears. NO rubbing. NO fading. Sharp corners. Clean, square and tight. NOT a library discard. NO owner's name or bookplate. NOT a remainder. Pages are crisp, clean and unmarked -- apparently never read. Bulletin of the American Museum of Natural History, Volume 110: Article 3. Photo illustrated. Bibliography. Complete with 4-page fold-out chart, plates 9 - 24 with an unnumbered page of descriptive text facing the plates. Also with a section on the effect of the crinoid host on the variability of permian platyceratids by Arthur L. Bowsher. Bound in the original blue wraps, stamped in black. 7.75" wide by 10.5" tall. . First Edition. Oversize Softcover. Fine condition. Illus. by NOT a library discard. (iv). pp. 177 - 275. + plates 9 - 24. Great Packaging, Fast Shipping.