Chernyshev, A. V. (2021).

A new species of Metaruncina (Gastropoda: Heterobranchia: Runcinida) from Vietnam with a discussion on the so-called rudimentary radula in runcinids

. Zootaxa, 4974(1), 197–200. https://doi.org/10.11646/zootaxa.4974.1.12