original description
(of Spirostreptus amandus Attems, 1914) Attems, C. M. T. Graf von. (1914). Afrikanische Spirostreptiden nebst Überblick über die Spirostreptiden orbis terrarum. <em>Zoologica (Stuttgart).</em> 25(65-66): 1-235. Stuttgart., available online at https://www.zobodat.at/pdf/Zoologica_25_65-66_0001-0233.pdf, https://www.biodiversitylibrary.org/page/10232973
page(s): 62-63, pl. 1, figs. 1-2 [details] 
new combination reference
Enghoff, H. (2023). A new distinct, disjunct giant millipede of the genus <em>Spirostreptus</em> Brandt, 1833, from Tanzania, and a solution for orphaned <em>Spirostreptus</em> species (Diplopoda, Spirostreptida, Spirostreptidae). <em>Zootaxa.</em> 5389(2): 275-287., available online at https://doi.org/10.11646/zootaxa.5389.2.9
page(s): 282, table 1; note: Analocostreptus amandus (Attems, 1914), comb. nov. [details]
From editor or global species database
Original description p. 62 Spirostreptus amandus Attems, 1914
Original description p. 63 Spirostreptus amandus Attems, 1914
Original description figs. 1-2 Spirostreptus amandus Attems, 1914