Nekola, J.C., Jones, A., Martinez, G., Martinez, S., Mondragon, K., Lebeck, T., Slapcinsky, J. & Chiba, S. (2012). Vertigo shimochii Kuroda & Amano, 1960 synonymized with Gastrocopta servilis (Gould, 1843) based on conchological and DNA sequence data.
Zootaxa. 3161: 48–52.