(of Craspedosoma polydesmoides Leach, 1814) Leach, W. E. (1815). A tabular view of the external characters of four classes of animals, which Linné arranged under Insecta; with the distribution of the genera composing three of these classes into orders, &c. and descriptions of several new genera and species. <em>Transactions of the Linnean Society of London.</em> 11(2): 306-400., available online at http://biodiversitylibrary.org/page/756873
page(s): 380 [details]
(of Atractosoma latzeli Verhoeff, 1891) Verhoeff, K. W. (1891). Ein Beitrag zur mitteleuropäischen Diplopodenfauna. Berliner entomologische Zeitschrift, 36(1): 115-166. Berlin
page(s): 127 [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 [details]