simulatrix, Urotrygon Miyake [T.] & McEachran [J. D.] 1988:372, Figs. 1c, 2c [Bulletin of Marine Science v. 42 (no. 3); ref. 12878] East side of Punta Paitilla, (Pacific) Panama. Holotype: USNM 285187 [ex GCRL 13064]. Paratypes: GCRL 13064 (3). •Valid as Urotrygon simulatrix Miyake & McEachran 1988 -- (McEachran in Fischer et al. 1995:792 [ref. 22829], Compagno 1999:494 [ref. 25589], Naylor et al. 2012:78 [ref. 32267] see remarks, Weigmann 2016:164 [ref. 34211], Last & McEachran 2016:672 [ref. 35013], Ehemann et al. 2018:27 [ref. 36194]). Current status: Valid as Urotrygon simulatrix Miyake & McEachran 1988. Urotrygonidae. Distribution: Eastern Pacific: Panama. Habitat: marine.