Species that contain: Rhamphichthys and rostratus [ 6 ] records

blochii, Rhamphichthys Kaup [J. J.] 1857:133, Fig. 9 [Catalogue of the apodal fish in the collection of the British Museum; ref. 2573] No locality. No types known. Type catalog: Ferraris et al. 2017:[29] [ref. 35236] with remarks. •Questionably a synonym of Rhamphichthys rostratus (Linnaeus 1766) -- (Mago-Leccia 1994:41 [ref. 21320], Ferraris in Reis et al. 2003:493 [ref. 27061]). •Synonym of Rhamphichthys rostratus (Linnaeus 1766) -- (Albert 2001:124 [ref. 25614], Ferraris et al. 2017:[29] [ref. 35236], Carvalho & Albert 2023:55 [ref. 40654]). Current status: Synonym of Rhamphichthys rostratus (Linnaeus 1766). Rhamphichthyidae. Habitat: freshwater.

longirostratus, Gymnotus Lacepède [B. G. E.] 1800:145, 178 [Histoire naturelle des poissons (Lacepède) v. 2; ref. 2709] South America. No types known. Type catalog: Ferraris et al. 2017:[29] [ref. 35236] with remarks. Unnecessary replacement name for Gymnotus rostratus Linnaeus 1766. Also appeared in Sonnini 1803:387 (v. 5) [ref. 30473]. •Questionably a synonym of Rhamphichthys rostratus (Linnaeus 1766) -- (Mago-Leccia 1994:41 [ref. 21320], Ferraris in Reis et al. 2003:493 [ref. 27061]). •Synonym of Rhamphichthys rostratus (Linnaeus 1766) -- (Albert 2001:124 [ref. 25614], Ferraris et al. 2017:[29] [ref. 35236], Carvalho & Albert 2023:55 [ref. 40654]). Replacement Name. Current status: Synonym of Rhamphichthys rostratus (Linnaeus 1766). Rhamphichthyidae. Habitat: freshwater.

reinhardti, Rhamphichthys Kaup [J. J.] 1857:132, Fig. 8 [Catalogue of the apodal fish in the collection of the British Museum; ref. 2573] No locality. Holotype (unique): MNHN 0000-3956. Type catalog: Ferraris et al. 2017:[29] [ref. 35236] with remarks. •Valid as Rhamphichthys reinhardti Kaup 1857 -- (Mago-Leccia 1994:42 [ref. 21320], Albert 2001:124 [ref. 25614]). •Provisionally a synonym of Rhamphichthys rostratus (Linnaeus 1766) -- (Triques 1999:1 [ref. 24281], Ferraris in Reis et al. 2003:493 [ref. 27061], Ferraris et al. 2017:[29] [ref. 35236]). •Synonym of Rhamphichthys rostratus (Linnaeus 1766) -- (Carvalho & Albert 2023:56 [ref. 40654]). Current status: Synonym of Rhamphichthys rostratus (Linnaeus 1766). Rhamphichthyidae. Habitat: freshwater.

rostratus, Gymnotus Linnaeus [C.] 1766:428 [Systema naturae sive regna tria naturae v. 1 (pt 1); ref. 2786] America [South America]. No types known. Type catalog: Ferraris et al. 2017:[28] [ref. 35236] with remarks. Based on multiple sources, including the 'Gymnotus maxillis elongatis tubulosis ...' of Gronow 1763:41 [ref. 1910], and Seba 1759:99, pl. 32, fig. 5 [ref. 18716]. •Valid as Rhamphichthys rostratus (Linnaeus 1766) -- (Ortega & Vari 1986:13 [ref. 9708], Mago-Leccia 1994:41 [ref. 21320], Planquette et al. 1996:400 [ref. 22818], Albert & Campos-da-Paz 1998:423 [ref. 23853], Sverlij et al. 1998:40 [ref. 27632], Triques 1999:1 [ref. 24281], Albert 2001:124 [ref. 25614], Lasso et al. 2001:100 [ref. 25928], Ferraris in Reis et al. 2003:493 [ref. 27061], López et al. 2003:65 [ref. 27366], Menni 2004:84 [ref. 28131], Sarmiento et al. 2014:108, 188 [ref. 35004], Carvalho & Albert 2015:40 [ref. 33681], Melo et al. 2016:134 [ref. 34701], Nión et al. 2016:34 [ref. 35565] as Ramphichthys, Ferraris et al. 2017:[28] [ref. 35236], DoNascimiento et al. 2017:66 [ref. 35633], Urbano-Bonilla et al. 2018:73 [ref. 35773], Ochoa et al. 2020:64 [ref. 37781], Silvano et al. 2020:199 [ref. 38135], Meza-Vargas et al. 2021:21 [ref. 39298], Koerber et al. 2022:45 [ref. 39235], Carvalho & Albert 2023:55 [ref. 40654], Torgersen et al. 2023:780 [ref. 40692]). Current status: Valid as Rhamphichthys rostratus (Linnaeus 1766). Rhamphichthyidae. Distribution: South America: Amazon, Essequibo, Tocantins, and coastal River basins of the Guianas, Bolivia, Peru, Colombia, Venezuela, Guyana, Suriname, French Guiana and Brazil. Habitat: freshwater.

schneideri, Rhamphichthys Kaup [J. J.] 1857:136, Fig. 11 [Catalogue of the apodal fish in the collection of the British Museum; ref. 2573] Cayenne, French Guiana. Syntypes: (2) ?MNHN 0000-3957 (1). Type catalog: Ferraris et al. 2017:[29] [ref. 35236] with remarks. •Questionably a synonym of Rhamphichthys rostratus (Linnaeus 1766) -- (Mago-Leccia 1994:41 [ref. 21320], Ferraris in Reis et al. 2003:493 [ref. 27061]). •Synonym of Rhamphichthys rostratus (Linnaeus 1766) -- (Albert 2001:124 [ref. 25614], Ferraris et al. 2017:[29] [ref. 35236], Carvalho & Albert 2023:56 [ref. 40654]). Current status: Synonym of Rhamphichthys rostratus (Linnaeus 1766). Rhamphichthyidae. Habitat: freshwater.

schomburgki, Rhamphichthys Kaup [J. J.] 1857:135, Fig. 10 [Catalogue of the apodal fish in the collection of the British Museum; ref. 2573] Rivers of Demerara, northern Guyana. Holotype (unique): MNHN 0000-3958. Type catalog: Ferraris et al. 2017:[29] [ref. 35236] with remarks. •Valid as Rhamphichthys schomburgki Kaup 1857 -- (Mago-Leccia 1994:41 [ref. 21320]). •Provisionally a synonym of Rhamphichthys rostratus (Linnaeus 1766) -- (Triques 1999:1 [ref. 24281]). •Synonym of Rhamphichthys rostratus (Linnaeus 1766) -- (Mago-Leccia 1994:41 [ref. 21320] with question, Ferraris in Reis et al. 2003:493 [ref. 27061] with question, Ferraris et al. 2017:[29] [ref. 35236], Carvalho & Albert 2023:56 [ref. 40654]). Current status: Synonym of Rhamphichthys rostratus (Linnaeus 1766). Rhamphichthyidae. Habitat: freshwater.