Synonyms: Hexatrematobatis longirostrum, Hexatrygon bickelii, Hexatrygon brevirostra, Hexatrygon longirostra, Hexatrygon longirostris, Hexatrygon longirostrum, Hexatrygon taiwanensis, Hexatrygon yangi
Common name: Sixgill stingray
Original description species: Heemstra & Smith, 1980
Genus: Hexatrygon Heemstra & Smith, 1980
Family: Hexatrygonidae Heemstra & Smith, 1980
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii