Arius Fraasi Peyer, 1928: 17 Arius gigas Arius heward-belli White, 1926: 56 Arius kitsoni White, 1926: 54 Arius kutchensis Raghavendra Rao, 1956: 181 Arius russi White, 1926: 58 Tachysurus landanensis Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types Published, First Zootaxa 2007 2007-03-08 1418 1 628 6Q6 31017 Bleeker 1862 [373,459,1051,1075] Actinopterygii Ariidae Animalia Siluriformes 55 56 Chordata family  †  Arius bartonensisWoodward, 1887: 306, fig. 3. Type locality: High Cliff, Barton Hampshire, England. Upper Eocene. Holotype: BMNH 40280 (dorsal fin spine). Originally:  Arius(?)  bartonensis. †  Arius egertoni belgicusLeriche, 1905. (no additional information; name from Weiler, 1956: 187). †  Arius BonnetiPriem 1904: 44(figs. 3–8). Typelocality: Bartonien superieur de Marines. Types: dans la collection Bonnet (dorsal and pectoral fin spines); also illustrated in Priem (1908: 123, figs. 63, 64, pl. 3, figs. 5–6).  †  Arius DutempleiLeriche, 1900: 181, pl. 1, figs 13–15. Typelocality: Cuis, Chavot [Marne, Lower Eocene]. Types: at laboratoire de Géologie de l’Universitéde Lille (dorsal fin spine, pectoral fin spine). Distribution: several Paris Basin localities, lowermost Eocene (Gaudant, 1981) (from Gayet & Meunier, 2003).  †  Silurus EgertoniDixon, in Dixon& Egerton, 1850: 112, 204, pl. 11, figs. 11–13. Bracklesham Bay, Sussex, Middle Eocene. Holotype: BMNH 25612(pectoral arch and spine). Remarks: Redescribed as †  Arius egertoniin Woodward (1887: 304, figs. 1–2).   †  Arius FraasiPeyer, 1928: 17, pl. 6, fig. 2. Type locality: Unterste Nokkattam-Stufe, Eocän, Cairo. Holotype: at Naturalienkabinett Stuttgart. †  Arius gigas[no additional information; from Gayet & Meunier (2003)].  Distribution: Chad, Mio-Pliocene (Brunet et al., 2000). Remarks: Gayet & Meunier (2003) placed this species in the Ariidae, but without any additional information. It is unclear whether the use of this name in Brunet et al.(2000) and Gayet & Meunier (2003) was intended to identify fossils with the Recent species  Arius gigasBoulengeror this name was proposed independently of, and therefore a homonym of, that name.   †  Arius heward-belliWhite, 1926: 56, pl. 13, figs. 4–12. Type locality: Ameki, Nigeria, Eocene. Holotype: National Collection[ Nigeria] or BMNH(pectoral spine tip).  †  Arius kitsoniWhite, 1926: 54, pl. 13, figs. 1–2. Type locality: Ameki, Nigeria, Eocene. Holotype: National Collection[ Nigeria] or BMNH(proximal half of right pectoral fin spine).  †  Arius kutchensisRaghavendra Rao, 1956: 181, figs. 1–2, pl. 28. Type locality: Gypseousshale beds about two miles west of Nareda, Western Kutch, India; Lower Eocene. Holotype: (skull) Geological Surveyof India, Calcutta17539. Remarks: See Sahni& Mishra(1975: 11, pl. 2, figs. 2–4) for emended diagnosis.   †  Arius nucleusWeinfurter, 1952. Typelocality: [ Austria, Miocene]. [ Noother information]   †  Arius russiWhite, 1926: 58, pl. 13, fig. 3. Type locality: Oshosun, Nigeria, Eocene. Holotype: National Collection[ Nigeria] or BMNH(proximal end of pectoral fin spine). †  Tachysurus landanensis[No other information, taken from Gayet & Meunier (2003)].  Distribution: Zaire, Eocene (Gayet & Meunier, 2003). Remarks: Placement in Ariidaesupported by Gayet & Meunier (2003). de Geologie de l'Universite Geologie de l'Universite de Lille 55 56 2 BMNH Dixon & Egerton Bay 55 56 BMNH 25612 1 Bay holotype Eocan Unterste Nokkattam-Stufe 55 56 1 Al Qahirah holotype BMNH Nigeria Ameki National Collection 55 56 1 holotype BMNH Nigeria Ameki National Collection 55 56 1 holotype Geological Survey & Calcutta & Remarks & See Sahni & Mishra India Lower Eocene. 56 57 Gypseous Western Kutch 55 56 1 holotype [151,1131,233,256] Austria Miocene No 56 57 1 BMNH Nigeria Oshosun National Collection 56 57 1 holotype