Two echinoderms (Neuchatel, Switzerland, 1837), Jacques Burkhardt, 1837-??-??

Taxonomic classification: animalia. Common name: echinoderm. Date: 1837-??-??. Dimensions: 21 x 29 cm.. Medium: watercolor on paper. Collection: Harvard University. Two echinoderms (Neuchatel, Switzerland, 1837)