Browse DSIDetails of the item << Previous Next >> Welter 1840 fl. Switzerland Jean Louis Rodolphe Agassiz (1807-1873) ; Johann Jakob von Tschudi (1818-1889) ; marine, fossil, paleontological, herpetological, and zoological drawing Nissen: Zoolog. Buchillustration 1969/78 ## 39, 43 & 4179 ;
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