Elasmodiver contains photos of sharks, skates, rays, and chimaera's
from around the world. Elasmodiver began as a simple web based
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 photography.
There are now
more than 10,000 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
Leading edge of hammer
well rounded (spade-like). Grey or grey brown dorsum often with small dark
length 150cm. 35 - 40cm at birth.
In shore mud/sand flats. Also, coral reefs, estuaries, and channels. Intertidal to
and distribution: Atlantic and Pacific coasts of the Americas
England to southern Brazil, and California to Ecuador.
A social shark usually in groups of three to fifteen animals. Migratory. Feeds
on crustaceans, bi-valves, cephalopods, and small fishes.
The hammerheads as a group are considered the most highly evolved of the shark families. 4 -
16 pups in a litter.
Similar species: Scoophead
Smalleye Hammerhead Shark, and Mallethead Shark each share part of the Bonnethead
shark's range but all can be distinguished by their slightly broader, more
hammerhead like heads.
Reaction to divers:
I have not dove with this species but judging by the lack of good photographs in
the wild I would imagine that the Bonnethead is a difficult shark to approach.
Information on dives where Bonnetheads are often seen would be appreciated.
Other diving locations submitted by
Reef Sharks and Rays of the World. Scott W. Michael. Sea Challengers.
Sharks and Rays - Elasmobranch Guide of the World. Ralf M. Hennemann. IKAN.