psammium, Megalonema platycephalum Schultz [L. P.] 1944:216, Pl. 2 (fig. B) [Proceedings of the United States National Museum v. 94 (no. 3172); ref. 3959] Río Palmar at the bridge 70 kilometers southwest of Maracaibo, Venezuela. Holotype: USNM 121175. Paratypes: Dahl coll. [ex USNM 121176] (2); MBUCV-V-10936 [ex USNM 121177] (2); MCZ 37243 [ex USNM 121176] (2); UMMZ 142491 [ex USNM 12177] (3); USNM 121176 (14, now 10), 121177 (46, now 41), 121178 (15). Type catalog: Ferraris & Vari 1992:33 [ref. 19771], Provenzano et al. 1998:12 [ref. 24196], Ferraris 2007:335 [ref. 29155]. •Synonym of Megalonema platycephalum Eigenmann 1912, but a valid subspecies as described -- (Burgess 1989:275 [ref. 12860]). •Synonym of Megalonema platycephalum Eigenmann 1912 -- (Galvis et al. 1997:61 [ref. 23651]). •Valid as Megalonema psammium Schultz 1944 -- (Lundberg & Littmann in Reis et al. 2003:437 [ref. 27061], Ferraris 2007:335 [ref. 29155], DoNascimiento et al. 2017:93 [ref. 35633]). Current status: Valid as Megalonema psammium Schultz 1944. Pimelodidae. Distribution: Lake Maracaibo basin: Colombia and Venezuela. Habitat: freshwater.