Verhoeff, K. W. (1897). Beiträge zur Kenntniss paläarktischer Myriopoden. V. Aufsatz: Übersicht der mir genauer bekannten europäischen Chordeumiden-Gattungen. Archiv für Naturgeschichte, 63(1): 129-138
page(s): 137 [details]
basis of record
Jeekel, C. A. W. (1971). Nomenclator generum et familiarum Diplopodorum: A list of the genus and family-group names in the Class Diplopoda from the 10th edition of Linnaeus, 1758, to the end of 1957. Monografieen van de Nederlandse Entomologische Vereniging, 5: 1-412. Amsterdam
page(s): 76; note: lists Polymicrodon Verhoeff, 1897 as junior objective synonym of Grypogona Cook, 1895 [details]
source of synonymy
Hoffman, R. L. (1980). Classification of the Diplopoda. 1-237. Genève.
page(s): 134; note: lists Grypogona Cook, 1895 as a junior subjective synonym of Nanogona Cook, 1895 [details]
source of synonymy
Foddai, D.; Minelli, A.; Scheller, U.; Zapparoli, M. (1995). Chilopoda, Diplopoda, Pauropoda, Symphyla. In: Minelli, A.; Ruffo, S.; La Posta, S. [Ed.], Checklist delle Specie della Fauna Italiana, 32/33, 1-35. Bologna
page(s): 18 [details]
From editor or global species database
Validity The genus name Nanogona Cook was proposed in 1895, with Craspedosoma polydesmoides Leach 1814 as its type species. Polymicrodon Verhoeff was proposed in 1897, with Atractosoma latzeli Verhoeff 1891 as its type species.
The argument for synonymy rests on Brolemann’s 1935 statement that C. polydesmoides is a senior subjective synonym of A. latzeli. According to Jeekel’s 1970 Nomenclator, that statement is incorrect. Therefore the species polydesmoides Leach 1814 should be in the genus Nanogona, and Polymicrodon Verhoeff 1897 is not a synonym of Nanogona Cook 1895, but—again according to Jeekel—Polymicrodon is a junior synonym of Grypogona Cook 1895, since both were based on the same type species. That’s how it stands at present.
The species polydesmoides and latzeli should, however, be checked to finally resolve the question