Sharks & Rays Elasmobranch Guide of the World Snorkelling the serrations bite into the

the serrations bite into the webbing and hold it firmly in place

The certified diver looking to advance their knowledge and skill set

It’s in-line design limits the pressure loss inherent in “L” type first stage designs making the FDX-i more efficient and lighter due to it’s compact form

Aqua Lung’s Compass is perfect for navigation under any conditions

6 kg) of lift capacity

Sharks & Rays Elasmobranch Guide of the World Snorkelling the serrations bite into theUntil just a few decades ago, very little was known about the phylogenetically old, but very successful group of sharks, rays and chimaeras (ratfishes). Since then, a lot of information has become available on the 1000 or so living species of cartilaginous fishes. Natuarally, the reef dwellers among them are better known than their deep sea relatives. Hence the focus of species selected for this unique identification guide has been on those sharks and