Huanren frog [SEP] parent taxon
Huanren frog
The Huanren frog ("Rana huanrensis") is a species of true frog found in East Asia. It was originally believed to be endemic to Huanren County, Liaoning, China, but was later also found in South Korea; it is presumed to be present in North Korea, as well. It is closely related to the Dybowski's frog, "Rana dybowskii", and specimens collected before 1991 were incorrectly identified as that species. Distinguishing factors include the absence of a vocal sac.
The Huanren
Bufonaria margaritula
Bufonaria margaritula is a species of sea snail, a marine gastropod mollusk in the family Bursidae, the frog shells.
Alternative combinations: 
Bufonaria margaritula, Bursa (Bursa) margaritula, Bursa margaritula, Chasmotheca margaritula,
Parent taxon: Bufonaria (Bufonaria) according to A. G. Beu 2005
References.
- Kilburn R.N. (1972). "Taxonomic notes on South African marine Mollusca, with the description of new species and subspecies of Conus, Nassarius, Vexillum and Demoulia". Annals of the