Dianema Cope [E. D.] 1871:112 Neut. Dianema longibarbis Cope 1872. Type by subsequent monotypy. Appeared first as above, with brief description and no species; species added by Cope 1872:276 [ref. 921]. •Valid as Dianema Cope 1871 -- (Gosline 1940:9 [ref. 6489], Burgess 1989:364 [ref. 12860], de Pinna 1998:301 [ref. 23847], Franz 2001:21[ref. 25831], Shimabukuro-Dias et al. 2004:158 [ref. 27953], Ferraris 2007:127 [ref. 29155]). Current status: Valid as Dianema Cope 1871. Callichthyidae: Callichthyinae.