vespertina, Sphyrna Springer [S.] 1940:161, Fig. 2 [Stanford Ichthyological Bulletin v. 1 (no. 5); ref. 10182] Panama City, (Pacific) Panama. Holotype: CAS-SU 11584. Paratypes: CM 5675 (1); CAS-SU 11881 (1). Type catalog: Böhlke 1953:10 [ref. 12291]. •Synonym of Sphyrna tiburo (Linnaeus 1758) -- (Gilbert 1967:53 [ref. 21135], Compagno 1984:550 [ref. 6846], Compagno et al. in Fischer et al. 1995:721 [ref. 22829], Chirichigno F. & Vélez D. 1998:40 [ref. 24555], Castro-Aguirre et al. 1999:52 [ref. 24550], Compagno 2003:503 [ref. 26984], Espinosa Pérez et al. 2004:73 [ref. 27705], Castro 2011:521 [ref. 31457]). •Valid as Sphyrna vespertina Springer 1940 -- (Del Moral-Flores et al. 2016:100 [ref. 34398], Del Moral-Flores et al. 2016:605 [ref. 34923], Calle-Morán et al. 2020:243 [ref. 37881], Page et al. 2023:41 [ref. 40505], Fricke et al. 2024:78 [ref. 41622], Gonzalez et al. 2024:507 [ref. 41605]). Current status: Valid as Sphyrna vespertina Springer 1940. Sphyrnidae. Distribution: Eastern Pacific: southern California (U.S.A.) south to Paita (northern Peru), including Gulf of California (Mexico). Habitat: brackish, marine.