Sartori, A. F., & Bieler, R. (2014).

Three new species of Ammonicera from the Eastern Pacific coast of North
America, with redescriptions and comments on other species of Omalogyridae (Gastropoda, Heterobranchia)

. Zootaxa, 3872(1), 1–21. https://doi.org/10.11646/zootaxa.3872.1.1