Okanishi, M. (2017).

A taxonomic review of the genus Astrohelix Döderlein, 1930 including the 
synonymy of the subgenus Asteroporpa (Astromoana) Baker, 1980 to Astrohelix

. Zootaxa, 4227(4), 543–553. https://doi.org/10.11646/zootaxa.4227.4.4