A monograph of the coleopterous families Corylophidae and Sphaeriidae Matthews, A. (Andrew), 1815-1897 creator Mason, Philip B. contributor text book London O.E. Janson 1899 1899
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ENG Beetles Classification Corylophidae Sphaeriidae QL573 .M3 https://www.biodiversitylibrary.org/bibliography/8977 17590533 10.5962/bhl.title.8977 IBT