. Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft. Natural history; Natural history. Fig. 3. Ph. derbyensis (Martini Grenzfall. Fig. 4. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Senckenbergische Naturforschende Gesellschaft. Frankfurt am Main : Waldemar Kramer [etc. ]

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Keywords: ., bookcentury1800, bookdecade1850, booksubjectnaturalhistory, booky