It is the only species in the genus Sinobdella according to FishBase, but another species, S. dienbienensis, is placed there by Catalog of Fishes (that species in Mastacembelus by FishBase).
Sinobdella stands alone in its genus, according to FishBase, but another species, S. dienbienensis, falls into this category as per the Catalog of Fishes, whereas FishBase places it within Mastacembelus.