Hexanchus griseus (Bonnaterre, 1788)

Love, Milton S., Bizzarro, Joseph J., Cornthwaite, Maria, Frable, Benjamin W. & Maslenikov, Katherine P., 2021, Checklist of marine and estuarine fishes from the Alaska-Yukon Border, Beaufort Sea, to Cabo San Lucas, Mexico, Zootaxa 5053 (1), pp. 1-285 : 20

Hexanchus griseus (Bonnaterre, 1788) .

Bluntnose Sixgill Shark, Mud Shark, or Sixgill Shark. Confirmed to 4.82 m (15.8 ft), and probably to 5.5 m (18 ft) ( Ebert et al. 2013). The 6 m (19.7 ft) reference ( Roberts et al. 2015) is undocumented and appears to be based on the maximum possible size estimated from a partial specimen ( Celona et al. 2005). Circumglobal in temperate and tropical waters; western Pacific Ocean north to southern Japan (Nakaya and Shirai in Masuda et al. 1984); eastern North Pacific Ocean south of Aleutian Islands ( Larkins 1964) to Gulf of California (Allen and Robertson 2015) to Chile ( Chirichigno and Vélez 1998), including Islas Galápagos ( Buglass et al. 2020). Depth: surface to at least 2,490 m (8,167 ft) (min.: Compagno 1984; max.: Weigman 2016). The modifier bluntnose was added to the common name by Compagno (1999); there are two species of sixgill shark, although only one occurs in our area.