Darmstadt, C. W. Leske: 1-23. 7 pls.

–The entire work was published in five parts, 1854-1861; see also Kaup (1861). Here he proposes a quinarian classification of sirs. and other mammals. Quinarian classification was a system of grouping taxa into sets of five that could be arranged in interlocking circles. It was developed by the English amateur entomologist William Sharp Macleay starting in 1819. See M. P. Winsor, Starfish, jellyfish, and the order of life: issues in nineteenth-century science (New Haven, Yale Univ. Press, 1976), pp. 82-97, for some historical and bibliogaphical information on this system.