This figure is the Rosy Bitterling or Baratanago, Rodeus ocellatus, number 09 from the first series (the Yujin paper refers to it as the subspecies R.o. ocellatus but it appears all subspecies may have been collapsed together—there is some discrepancy there). The Rosy bitterling is a cyprinid (carps & minnows) found in two populations, in Japan and mainland China and Taiwan.
