heteroptera, Squatina Castro-Aguirre [J. L.], Espinosa Pérez [H.] & Huidobro Campos [L.] 2007:1036, Figs. 5-8 [Revista de Biología Tropical v. 54 (no. 3) [for Sept. 2006]; ref. 29408] Off Tamaulipas, 22°44'01"N, 97°24'07"W, depth 157-164 meters. Holotype: IBUNAM-P 8307. Paratypes: IBUNAM-P 12722 (1). •Valid as Squatina heteroptera Castro-Aguirre, Espinosa Pérez & Huidobro Campos 2007 -- (Castro 2011:170 [ref. 31457], Page et al. 2013:54 [ref. 32708], Vaz & Carvalho 2013:74 [ref. 32825], Del Moral-Flores et al. 2016:67 [ref. 34398], Ehemann et al. 2018:24 [ref. 36194]). •Synonym of Squatina dumeril Lesueur 1818 -- (Weigmann 2016:69 [ref. 34211]). Current status: Synonym of Squatina dumeril Lesueur 1818. Squatinidae. Distribution: Western Gulf of Mexico (if valid). Habitat: marine.