Note 7 — Chapter XXV · BOMBON TO THE BATTLEFIELD OF AYACUCHO
Reading edition
“On some Land Shells Collected by Dr. Hiram Bingham, in Peru”; Proceedings of the U. S. Nat. Mus., xxxviii. 177-182. The shells “comprised various species and varieties of Bulimulus and a single species of Clausilia.” The latter was described by Dr. H. A. Pilsbry.