sanctjohanni, Characidium Dahl [G.] 1960:477, Fig. [Caldasia v. 8 (no. 39); ref. 9310] Noanamá, Río San Juan, Colombia. Holotype (unique): ICNMHN 211. Type catalog: Mojica & Agudelo-Zamora 2018:22 [ref. 36127] as C. santcjohanni. •Valid as Characidium sanctjohanni Dahl 1960 -- (Buckup 1993:102 [ref. 20831], Buckup in Reis et al. 2003:90 [ref. 27061], Agudelo-Zamora et al. 2014:196 [ref. 34883], DoNascimiento et al. 2017:35 [ref. 35633], Agudelo-Zamora et al. 2020:261 [ref. 37476], Agudelo-Zamora et al. 2020:5 [ref. 37812]). Current status: Valid as Characidium sanctjohanni Dahl 1960. Crenuchidae: Characidiinae. Distribution: San Juan River basin, Colombia. Habitat: freshwater.