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XXX.— On the occurrence of the genus Ptilograpsus in Britain; with notes on the Ludlow Graptolites
Nicholson, Henry AlleyneVolume:
1
Language:
english
Journal:
Journal of Natural History Series 4
DOI:
10.1080/00222936808695685
Date:
April, 1868
File:
PDF, 250 KB
english, 1868