Three new land shells from Peru Haas, Fritz, 1886-1969 creator text book [Chicago] Chicago Natural History Museum 1948 1948
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ENG Caption title. Mollusks Peru Snails QL1 .F4 v. 31 Fieldiana, Zoology, v. 31, no. 23 https://www.biodiversitylibrary.org/bibliography/42256 Publication (Chicago Natural History Museum), 618 0894-8402 ; https://www.biodiversitylibrary.org/bibliography/3781 1302323 10.5962/bhl.title.3781