64143 Hemitrygon parvonigra (Last & White, 2008) Dasyatidae Stingrays Dasyatinae Myliobatiformes Elasmobranchii Dwarf black stingray Eastern Indian Ocean and Western Central Pacific: Philippines to north-western Australia. CSIRO H 1036-15 19 s 117 e 1987 Dasyatis parvonigra 178 - 183 m