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).
In terms of fish classification, Sinobdella is a unique species within its genus, as noted by FishBase; nonetheless, another species, S. dienbienensis, shares this status with the Catalog of Fishes, which mistakenly positions it under Mastacembelus in FishBase's taxonomy.