. Bulletin biologique de la France et de la Belgique. Biology; Natural history. Bulleliii Siiculifi(]HC, T. XIJ'I. ^^w^' ;^^^ '/-^. P^:h ^'^^^fil^v':â ,:/:.-^ff-! l'Iaiu-k- XII. 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 Université de Paris. Laboratoire d'evolution des êtres organisés. Montreuil [etc. ] Gauther-Villars [etc. ]

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Keywords: ., bookcentury1900, bookdec, booksubjectnaturalhistory, bookyear1912