scapularis, Argonectes Böhlke [J. E.] & Myers [G. S.] 1956:2, Fig. 1 [Notulae Naturae (Philadelphia) No. 286; ref. 608] Mouth of Caño Massaua [Masagua], Río Orinoco, Venezuela. Holotype: CAS-SU 46382. Paratypes: ANSP 73701 (1), 134786 (1, c&s); CAS 20692 (2); CAS-SU 46383 (1). Type catalog: Böhlke 1984:53 [ref. 13621]. •Synonym of Argonectes longiceps (Kner 1858) -- (Langeani 1999:180 [ref. 24404], Langeani in Reis et al. 2003:97 [ref. 27061]). Current status: Synonym of Argonectes longiceps (Kner 1858). Hemiodontidae. Habitat: freshwater.