Species that contain: Crossocheilus and oblongus [ 5 ] records

nigriloba, Crossochilus oblongus var. Popta [C. M. L.] 1904:200 [Notes from the Leyden Museum v. 24 (no. 4) (art. 6) (for Oct. 1902); ref. 3547] Bo River, Central Borneo. Syntypes: RMNH 7589 (3). Original genus is correctly Crossocheilus. •Status uncertain -- (Roberts 1989:32 [ref. 6439]). •Valid as Crossocheilus nigriloba Popta 1904 -- (Kottelat et al. 1993:34 [ref. 23448], Doi 1997:4 [ref. 22832], Su et al. 2000:215 [ref. 25281], Kottelat & Widjanarti 2005:149 [ref. 28284], Kottelat 2013:90 [ref. 32989], Ciccotto et al. 2017:282 [ref. 35402]). Current status: Valid as Crossocheilus nigriloba Popta 1904. Cyprinidae: Labeoninae. Distribution: Mahakam River basin, Borneo. Habitat: freshwater.

oblongus, Crossocheilus Kuhl [H.] & van Hasselt [J. C.] in van Hasselt 1823:132 [Algemeene Konst- en Letter-bode voor het Jaar II Deel (no. 35); ref. 5963] Java, Indonesia. Lectotype: RMNH D1755 (dry). Probably not a type: RMNH 2640 (1). Type information: Roberts 1993:15 [ref. 21799]; but see Tan & Kottelat 2009:31 [ref. 30261] for lectotype and type information. Regarded as available, brief description with genus (see Kottelat 1987:371 [ref. 5962]). Also in van Hasselt 1824:376 [ref. 5964]; predates Labeo oblongus Valenciennes 1842. •Valid as Crossocheilus oblongus but dated to Valenciennes 1842 -- (Menon & Jacob 1996:62 [ref. 22482], Rainboth 1996:119 [ref. 22772], Su et al. 2000:215 [ref. 25281]). •Valid as Crossocheilus oblongus Kuhl & van Hasselt 1823 -- (Roberts 1989:32 [ref. 6439], Lim et al. 1990:41 [ref. 16753], Kottelat et al. 1993:34 [ref. 23448], Doi 1997:5 [ref. 22832], Ng & Tan 1999:353 [ref. 24159], Kottelat 2000:39 [ref. 25040], Kottelat 2001:43 [ref. 25780], Kottelat & Widjanarti 2005:149 [ref. 28284], Tan & Kottelat 2009:32 [ref. 30261], Kottelat 2013:90 [ref. 32989], Kottelat 2015:41 [ref. 33971], Ciccotto et al. 2017:282 [ref. 35402], Ng et al. 2019:522 [ref. 36606], Taki et al. 2021:176 [ref. 39830]). Current status: Valid as Crossocheilus oblongus Kuhl & van Hasselt 1823. Cyprinidae: Labeoninae. Distribution: Southeast Asia: Indonesia, Malaya (Malaysia), Mekong River basin, Cambodia, Laos and Thailand. Habitat: freshwater.

oblongus, Labeo Valenciennes [A.] in Cuvier & Valenciennes 1842:357 [Histoire naturelle des poissons v. 16; ref. 1009] Bogor, Java, Indonesia. Lectotype: RMNH D.1755. Type information: Roberts 1993:15 [ref. 21799]. See Tan & Kottelat 2009:31 [ref. 30261] for lectotype designation. •Synonym of and preoccupied by Crossocheilus oblongus Kuhl & van Hasselt 1823; wrongly regarded as available -- (Roberts 1993:15 [ref. 21799]). •Valid as Crossocheilus oblongus (Valenciennes 1842) -- (Bănărescu 1986:142 [ref. 8112]). •Objective synonym of Crosssocheilus oblongus Kuhl & van Hasselt 1823 -- (Tan & Kottelat 2009:28 [ref. 30261]). 2°Homonym. Current status: Synonym of Crossocheilus oblongus Kuhl & van Hasselt 1823. Cyprinidae: Labeoninae. Habitat: freshwater.

siamensis, Epalzeorhynchus Smith [H. M.] 1931:20, Fig. 9 [Proceedings of the United States National Museum v. 79 (no. 2873); ref. 4047] Tadi River, Nakhon Si Thammarat [Nakorn-Sritamarat], Peninsular Thailand. Holotype (unique): USNM 90302. Type catalog: Monkolprasit 1969:6 [ref. 25088]. •Valid as Crossocheilus siamensis (Smith 1931) -- (Bănărescu 1986:145 [ref. 8112], Rainboth 1996:120 [ref. 22772], Doi 1997:5 [ref. 22832], Kottelat 1998:26 [ref. 23436], Su et al. 2000:215 [ref. 25281]). •Synonym of Crossocheilus oblongus Kuhl & van Hasselt 1823 -- (Roberts 1989:32 [ref. 6439], Kottelat 2000:39 [ref. 25040], Kottelat 2001:43 [ref. 25780], Kottelat 2013:90 [ref. 32989], Ciccotto et al. 2017:283 [ref. 35402]). Current status: Synonym of Crossocheilus oblongus Kuhl & van Hasselt 1823. Cyprinidae: Labeoninae. Habitat: freshwater.

stigmaeus, Epalzeorhynchos Smith [H. M.] 1945:267, Fig. 53 [Bulletin of the United States National Museum No. 188; ref. 4056] Mekan [Maekhan] River, a tributary of Meping [Maeping] River, northern Thailand. Holotype: USNM 109765. Paratypes: USNM 109763 (1). Type catalog: Monkolprasit 1969:6 [ref. 25088]. •Synonym of Crossocheilus oblongus (Valenciennes 1842), but a valid subspecies -- (Bănărescu 1986:144 [ref. 8112], Su et al. 2000:215 [ref. 25281]). •Synonym of Crossocheilus oblongus Kuhl & van Hasselt 1823. •Valid as Crossocheilus stigmaeus (Smith 1945) -- (Kottelat 2013:90 [ref. 32989]). •Synonym of Crossocheilus tchangi Fowler 1935 -- (Ciccotto et al. 2017:288 [ref. 35402]). Current status: Synonym of Crossocheilus tchangi Fowler 1935. Cyprinidae: Labeoninae. Habitat: freshwater.