serrula, Urotrygon Hildebrand [S. F.] 1946:65, Fig. 13 [Bulletin of the United States National Museum No. 189; ref. 2161] Lobos de Tierra Bay, Peru, 6°26'S, 80°51'W. Holotype (unique): USNM 127795. •Valid as Urotrygon serrula Hildebrand 1946 -- (Chirichigno F. & Vélez D. 1998:69 [ref. 24555]). •Synonym of Urotrygon asterias Jordan & Gilbert 1883 -- (Miyake & McEachran 1986:297 [ref. 6153], Weigmann 2016:163 [ref. 34211] see remarks). Current status: Synonym of Urotrygon asterias Jordan & Gilbert 1883. Urotrygonidae. Distribution: Eastern Pacific (if valid). Habitat: marine.