Heterodontus francisci (Girard, 1855) .

Horn Shark. To at least 121 cm (47.6 in) TL (Personal communication: Scripps Institution of Oceanography Fish Collection, La Jolla, California). The widely reported maximum length of 122 cm (48 in) TL (e.g., Miller and Lea 1972) is based on a statement in Roedel and Ripley (1950) that this species reached a maximum length of “about 4 feet [= 122 cm].” Bolinas, northern California (Personal communication: Santa Barbara Natural History Museum Fish Collection, Santa Barbara, California) to Gulf of California (Miller and Lea 1972); reported to Colombia (Mejîa-Falla et al. 2007), probably Ecuador (Ebert 2003), and Peru (Cornejo et al. 2015) . Benthic; depth: intertidal to 201 m (660 ft) (min.: Eschmeyer and Herald 1983; max.: Personal communication: Scripps Institution of Oceanography Fish Collection, La Jolla, California).