Gmelin, J. F. (1791). Vermes. In: Gmelin J.F. (Ed.) Caroli a Linnaei Systema Naturae per Regna Tria Naturae, Ed. 13. Tome 1(6). G.E. Beer, Lipsiae [Leipzig]. pp. 3021-3910. Systema Naturae. Linneaeus (ed.). Ed. 13. 1: pars. 6.
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Gmelin, J. F.
1791
Vermes. In: Gmelin J.F. (Ed.) Caroli a Linnaei Systema Naturae per Regna Tria Naturae, Ed. 13. Tome 1(6). G.E. Beer, Lipsiae [Leipzig]. pp. 3021-3910
Publication date based on Hopkinson 1908:1036 [ref. 21257]; sometimes seen as 1788. A second edition printed, with alterations, from Lugduni.Hopkinson, J. (1908). Dates of publication of the separate parts of Gmelin's edition (13th) of the "Systema Naturae" of Linnaeus. Proc. Zool. Soc. Lond. 1908 (no. 69): 1035-1037. [ref. 21257] From Eschmeyer on the web.