Johann Daniel Wilhelm Hartmann

Johann Daniel Wilhelm Hartmann (12 January 1793 – 18 April 1862) was a Swiss painter, engraver and malacologist.

[1] He was born in St. Gallen, the son of Georg Leonhard Hartmann (1764-1828), who was also a painter.

After training in fine arts with his father in Zurich, Munich and Bern, he worked in St. Gallen from 1826 as a naturalist and miniature painter, heraldist and genealogist.

[1] Taxa described by Hartmann include Discus ruderatus, Ampullaceana ampla, Trochulus clandestinus, Bythiospeum acicula, Papillifera and others.

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