petiti, Gymnorhamphichthys hypostomus Géry [J.] & Vu [T.-T.] 1964:486, Pl. 1 [Vie et Milieu Supplément No. 17; ref. 10073] Ilha do Bananal, upper Rio Araguaia, Brazil. Holotype: MHNG 2167.15 [ex Géry coll. M.340]. Paratypes: (21) ZSM 26764 (1). Type catalog: Weber 1998:10 [ref. 32707], Neumann 2011:275 [ref. 31652], Ferraris et al. 2017:[26] [ref. 35236]. •Valid as Gymnorhamphichthys petiti Géry & Vu 1964 -- (Albert 2001:124 [ref. 25614], Ferraris in Reis et al. 2003:492 [ref. 27061], Lundberg 2005:3 [ref. 20334], Carvalho et al. 2011:400 [ref. 31553]). •Synonym of Gymnorhamphichthys rondoni (Miranda Ribeiro 1920) -- (Mago-Leccia 1994:43 [ref. 21320], Ferraris et al. 2017:[26] [ref. 35236]). Current status: Synonym of Gymnorhamphichthys rondoni (Miranda Ribeiro 1920). Rhamphichthyidae. Habitat: freshwater.