pygmaeus, Girardinus Rivas [L. R.] 1944:49 [Proceedings of the New England Zoölogical Club v. 23; ref. 13184] Río Negro, of the Hatiguanico system (Ciénaga de Zapata), at Los Cristales, Matanzas Province, Cuba. Holotype: USNM 203153 [ex Rivas coll. 128]. Paratypes: MCZ 36179 (4); USNM 130215 [ex Rivas coll. 47] (4), 205458 [ex Rivas coll. 47] (184). Type catalog: Parenti et al. 1999:10 [ref. 24072]. Type information: Rivas 1969:202 [ref. 25092]. •Synonym of Girardinus metallicus Poey 1854 -- (Rosen & Bailey 1963:112 [ref. 7067], Parenti et al. 1999:10 [ref. 24072], Lucinda in Reis et al. 2003:561 [ref. 27061], Meyer 2015:118 [ref. 34698], Huber 2019:75 [ref. 36941]). Current status: Synonym of Girardinus metallicus Poey 1854. Poeciliidae: Poeciliinae. Habitat: freshwater.