triangularis, Nemacheilus Day [F.] 1865:295 [Proceedings of the Zoological Society of London 1865 (pt 1); ref. 5295] Hills at Mundikyum, Cochin (now Kerala), India. Holotype (unique): ?ZSI 2681 (lost). Day specimens: AMS B.7738 (1) Travancore, BMNH 1865.10.22.1 (1) and 1865.7.17.23 (1) Travancore; NMW 48449 (1). Type catalog: Whitehead & Talwar 1976:157 [ref. 23762], Ferraris et al. 2000:303 [ref. 25110]. Described from one specimen. Also appeared in Day 1865:203, Pl. 14, fig. 1 [ref. 1074]. Reasons for loss of ZSI type specimens during WWII see Chopra 1947:349-350 [ref. 33077]. •Valid as Nemacheilus triangularis Day 1865 -- (Menon 1987:168 [ref. 14149] as Noemacheilus, Talwar & Jhingran 1991:506 [ref. 20764], Indra 1993:185 [ref. 24009] as Noemacheilus, Rema Devi 1993:206 [ref. 24010] as Noemacheilus, Rema Devi et al. 1996:135 [ref. 24021] as Noemacheilus, Zacharias et al. 1996:40 [ref. 25526] as Noemacheilus, Zacharias & Minimol 1999:289 [ref. 24212] as Noemacheilus, Menon 1999:186 [ref. 24904] as Noemacheilus, Raju Thomas et al. 2000:444 [ref. 25319] as Noemacheilus, Arunachalam et al. 2001:128 [ref. 25692], Raju Thomas et al. 2002:50 [ref. 26359], Kurup & Radhakrishnan 2005:77 [ref. 28530]). •Valid as Mesonoemacheilus triangularis (Day 1865) -- (Bănărescu & Nalbant 1995:447 [ref. 23187], Rema Devi & Indra 2002:334 [ref. 26591] as subspecies triangularis, Shaji 2002:219 [ref. 27556], Kottelat 2012:89 [ref. 32367], Anoop et al. 2017:127 [ref. 35652], Bleher 2018:158 [ref. 36647]). Current status: Valid as Mesonoemacheilus triangularis (Day 1865). Nemacheilidae. Distribution: Western Ghats, Kerala, southern India. Habitat: freshwater.