(Patrick) Potapova 2013
Hippodonta gravistriata is distinguished by its rhombic-lanceolate valve shape. The striae of H. gravistriata are uniseriate, while H. hungarica has biseriate striae.
(Grunow) Lange-Bert., Metzeltin and Witkowski 1996
(Grunow) Lange-Bert., Metzeltin and Witkowski