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Californian Horn Shark Pictures
Shark Pictures Database
Name: Heterodontus fransisci
crests (brow bones) moderately high. Small dark spots on tan or grey body (spots
occasionally absent). Large, blocky, pig-like head. Dorsal spines present,
terminating well below tips of dorsal fins. Pectoral fins large. Jaw contains
anterior, pointed, clutching teeth and rear
molars. Dentition changes with age (adults have more prominent molars).
reefs and Kelp forests. Juveniles often in open sandy areas.
Hides in crevices or caves during the day venturing out to forage at night. May
swim freely but is usually seen sluggishly moving along the bottom on its
muscular pectoral fins. Hunts for Urchins, crabs, worms, anemones, and bony
Lays a distinctive auger shaped egg case with two threadlike filaments
extending from one end. Egg hatches in 7 to 9 months.
Data Deficient. According to the IUCN, California horn sharks have a small home
range and exhibit long term site fidelity. They are hardy species and can
survive capture if returned to the water; however, catches in Mexico are
sometimes left to die on beaches. They are of no commercial value, although they
are taken as bycatch (primarily off Mexico). If the gillnet fishery in Mexico
expands significantly in the future, the population could potentially face
problems, however, insufficient information is available at present to assess
Heterodontus francisci beyond Data Deficient. However, it could well be Least
Concern in US waters where its capture in fisheries is extremely rare with no
other apparent threats.
La Jolla Cove, CA and Avalon,
bullhead shark - Heterodontus mexicanus
shares the south range of the California Horn shark.
approached. Remains motionless unless molested. Caution should be taken around
easily observed whilst night diving. Catalina offers an excellent opportunity to
encounter this shark. Air and equipment can be obtained on the pier in Avalon
for shore diving purposes. Head out on the road past Lovers Cove South of town
and enter from the beach. This is a long hike if you’re wheeling your gear
along in a rented cart. Small Horn sharks are usually present in around 30ft of
at Casino Point right in Avalon may also be a reasonable place to look at night
but this area gets too much traffic during the day for reliable sightings.