petiti, Rhinobatus (Rhinobatus) Chabanaud [P.] 1929:365, Fig. 1 [Bulletin du Muséum National d'Histoire Naturelle (Série 2) v. 1 (no. 6); ref. 16071] Nosy Marirana Bank, between Ankilibé and Tuléar, west coast of Madagascar. Holotype (unique): MNHN 1929-0222. Type catalog: Bertin 1939:80 [ref. 20739], Séret & McEachran 1987:12 [ref. 9312]. •Valid as Rhinobatos petiti Chabanaud 1929 -- (Compagno 1999:485 [ref. 25589]). •Valid as Glaucostegus petiti (Chabanaud 1929) -- (Weigmann 2016:85 [ref. 34211] see remarks, Fricke et al. 2018:24 [ref. 35805], Habib & Islam 2021:141 [ref. 38397]). •Synonym of Glaucostegus cemiculus (Geoffroy St. Hilaire 1817) -- (Séret & Carvalho 2022:573 [ref. 39672]). Current status: Synonym of Glaucostegus cemiculus (Geoffroy St. Hilaire 1817). Glaucostegidae. Distribution: Western Indian Ocean: Madagascar endemic [if valid]. Habitat: marine.