Anachis (Parvanachis) mullineri Poorman, 1983 accepted as
Parvanachis mullineri (Poorman, 1983) (additional source)
Anachis mogolloni Arias Ávila, 2021 (original description)
Astyris salvadori Arias Ávila, 2016 accepted as
Astyris permodesta (Dall, 1890) (source of synonymy)
Mitrella caboblanquensis Arias Ávila, 2021 (original description)
Mitrella dichroa (G. B. Sowerby I, 1844) (additional source)
Mitrella guttata (G. B. Sowerby I, 1832) (additional source)
Mitrella humboldti Arias Ávila, 2021 (original description)
Mitrella penai Arias Ávila, 2021 (original description)
Mitrella salvadorae Arias Ávila, 2021 (original description)
Parvanachis bocapanensis Arias Ávila, 2021 (original description)
Parvanachis forcellii Arias Ávila, 2021 (original description)
Urpiella Arias Ávila, 2021 (original description)
Urpiella thorssoni Arias Ávila, 2021 (original description)