original description
(of Crystallus retowskii Lindholm, 1914) Lindholm, W. A. (1914). Beschreibung vier neuer Landschnecken und einer neuen Untergattung aus dem südwestlichen Transkaukasien. <em>Nachrichtsblatt der Deutschen Malakozoologischen Gesellschaft.</em> 46 (1): 33-38. Frankfurt am Main [11 February]., available online at https://www.biodiversitylibrary.org/page/15105133
page(s): 35 [details]
additional source
Sysoev, A. V. & Schileyko, A. A. (2009). Land snails and slugs of Russia and adjacent countries. <em>Sofia/Moskva (Pensoft).</em> 312 pp., 142 plates. [June] [= Pensoft Series Faunistica No 87].
page(s): 133, Fig. 68D [details] Available for editors [request]
From editor or global species database
Type locality Abastumani (Southern Georgia) [details]