guppyi, Tetragonopterus Regan [C. T.] 1906:384, Pl. 21 (fig. 1) [Proceedings of the Zoological Society of London 1906 (pt 2) (art. 1) (for 10 Apr. 1906); ref. 15700] Glenside Estate stream, at the foot of the northern range of hills, Trinidad Island, West Indies. Syntypes: BMNH 1906.6.23.13-17 (5). Román-Valencia et al. 2018:40 [ref. 36348] report lectotype BMNH 1906.6.23. •Synonym of Hemibrycon taeniurus (Gill 1858) -- (Bertaco & Malabarba 2010:762 [ref. 31076]). •Valid as Hemibrycon guppyi (Regan 1906) -- (Malabarba in Reis et al. 2003:129 [ref. 27061], Román-Valencia & Ruiz-C. 2007:123 [ref. 29189], Román-Valencia & Arcila-Mesa 2009:79 [ref. 30718], Román-Valencia et al. 2014:118 [ref. 33572], García-Alzate et al. 2015:90 [ref. 33838], Román-Valencia et al. 2018:40 [ref. 36348]). Current status: Valid as Hemibrycon guppyi (Regan 1906). Characidae: Stevardiinae. Distribution: Trinidad Island, West Indies. Habitat: freshwater.