umbrifer, Urolophus Jordan [D. S.] & Starks [E. C.] in Jordan 1895:389 [Proceedings of the California Academy of Sciences (Series 2) v. 5; ref. 2394] Mazatlán, Sinaloa, western Mexico. Holotype: CAS-SU 2948. Paratypes: BMNH 1895.5.27.338 [ex CAS-SU 2914] (1), CAS-SU 2914 (now 2), ZMB 14039 [ex CAS-SU 2914] (1). Type catalog: Böhlke 1953:11 [ref. 12291]. •Synonym of Urolophus halleri Cooper 1863 -- (Castro-Aguirre & Espinosa Pérez 1996:49 [ref. 22793], Del Moral-Flores et al. 2015:502 [ref. 33729]). •Synonym of Urobatis halleri (Cooper 1863) -- (Del Moral-Flores et al. 2016:122 [ref. 34398]). Current status: Synonym of Urobatis halleri (Cooper 1863). Urotrygonidae. Habitat: marine.