Sharks play an essential rol in the health of our oceans

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Meet the Frill Shark!

There are some really special sharks in our oceans, but many of them live in the deep and are only seldom seen. One of these species is the frilled shark, and the pictures show Chlamydoselachus anguineus, a species over 80 million years old.

Frilled sharks are wide ranging. They have been found almost worldwide, including the eastern Atlantic coast of northern Norway, the western Indian Ocean near South Africa, the western Pacific near New Zealand, and the eastern Pacific near the coast of Chile.

Chlamydoselachus anguineus, is found on continental shelves and the nearshore areas of large islands, although they are occasionally reported in open waters. They are mostly benthic and occur at depths from 100 to 1,300 meters. Frill sharks have a small dorsal fin located well towards the tail, above the large anal fin, and in front of the highly asymmetric caudal fin. The pectoral fins are short and rounded (Taylor et al., 2002). Chlamydoselachus anguineus has six gill openings (most sharks have five).

 

Frilled shark showing specially adapted teeth

Reproduction in these sharks is not well understood, and it is difficult to determine just how long these fish live, but it is estimated to be at least 25 years. Their status on the IUCN Red List is Near Threated.

More info on frill sharks:
http://www.fishbase.org/Summary/speciesSummary.php?ID=635&AT=frill+shark

See a frill shark swim:

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