Heterodontus francisci (Girard, 1855)
Horn shark
Heterodontus francisci
photo by Muséum-Aquarium de Nancy/D. Terver

Family:  Heterodontidae (Bullhead, horn, or Port Jackson sharks)
Max. size:  122 cm TL (male/unsexed); max. reported age: 12 years
Environment:  demersal; marine; depth range 0 - 152 m
Distribution:  Eastern Pacific: central California, USA to the Gulf of California, and probably Ecuador and Peru.
Diagnosis:   
Biology:  Sluggish, nocturnal, and mostly solitary species. Inhabit rocky bottoms, kelp beds, sandy draws between rocks, on sand flats, deep crevices and small caves and also large underwater caverns. Adults tend to return to the same resting place every day (Ref. 43278). Feed on benthic invertebrates, especially sea urchins, crabs and probably abalone, also fishes. Oviparous (Ref. 50449). May bite back when harassed. Has broad muscular paired fins used as limbs for clambering on the bottom. Catch reduced to fish meal; fin spines used in production of jewels.
IUCN Red List Status: Data deficient (DD); Date assessed: 06 March 2014 Ref. (126983)
Threat to humans:  traumatogenic


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