Not just Shark
Pictures: Elasmodiver contains photos of sharks, skates, rays, and
chimaera's from around the world. Elasmodiver began as a simple web
based shark field guide to help divers find the best places to
encounter the different species of sharks and rays that live in
shallow water but it has slowly evolved into a much larger project
containing information on all aspects of shark diving and shark
There are now
more than 5000 shark pictures and sections on shark evolution,
biology, and conservation. There is a large library of reviewed
shark books, a constantly updated shark taxonomy page, a monster
list of shark links, and deeper in the site there are numerous
articles and stories about shark encounters. Elasmodiver is now so
difficult to check for updates, that new information and pictures
are listed on an Elasmodiver Updates Page that can be accessed here:
Large, blocky, pig-like head. Dorsal spines present,
terminating well below tips of dorsal fins. Dorsal fins pointed. Distinct, dark
bridle pattern running from upper back onto
pectoral fins and along flanks. Dark stripe also runs from the cheeks over the
eyes and across the supra-orbital ridges
23cm at birth. Males mature at 70
- 80cm, females amture at 85 - 90cm.
Intertidal to at least 275m. Rocky
reefs and sand flats from. Juveniles often in open sandy areas.
and distribution: Northern Western Australia around south coast to
Most common in Southern range.
Rests during the day in groups or solitary, on the sand and forages for small
fishes, Sea urchins, and benthic invertebrates at night.
large nurseries sometimes with hundreds of sharks.
Oviparous.During August and September
deposits 10 - 16
distinctive auger shaped egg cases every 8 to 17 days
Albany, Western Australia.
species: Crested horn shark.
Shares east coast home range but easily distinguished by lack of bridled pattern
and higher supra-orbital ridge.
to divers: Can often be
approached but prone to bolt especially when in the open.
logistics: Port Jackson sharks are
fairly abundant in much of their southern range.
Consequently they are often encountered by divers in recreational diving depths.
diving locations submitted by readers:
Sharks and Rays of the World. Scott W. Michael. Sea Challengers.
and Rays - Elasmobranch Guide of the World. Ralf M. Hennemann. IKAN.