**__**Caribbean reef shark **_([Carcharhinus perezi](http://www.scubadiving.com/photos/marine-life-guide-sharks))_** **_ _** •Conservation status: IUCN Red Listed as ‘Near Threatened’ •Sometimes known in Spanish as ‘cabeza dura’ meaning thick skull.

**_Bull shark (Carcharhinus leucas)_** •Conservation status: IUCN Red Listed as ‘Near Threatened’ •Common names include Zambezi shark, Swan River shark, and Lake Nicaragua shark.

Broadnose sevengill shark (Notorynchus cepedianus) •Conservation status: IUCN Red Listed as ‘Data Deficient’ •These unique sharks get their name from having seven paired gill slits compared to more ‘modern’ sharks having five pairs; they have only one dorsal fin.

**_Blue shark (Prionace glauca)_** •Conservation status: IUCN Red Listed as ‘Near Threatened’ •In some countries and fisheries they are called ‘blue dogs’.

Blacktip reef shark (Carcharhinus melanopterus) **·**Conservation status: IUCN\* listed as ‘Near Threatened’ **·**Their common name comes from their distinct dorsal fins with black or dark brown tips.

Located between the islands of Sumbubwa and Flores, Komodo National Park consists of Komodo, Rinca & Padar islands and many smaller islands in between.

Test your knowledge of dive geography using three clues to determine the name of a mystery dive spot.

Peter Hughes knows a thing or two about live-aboards, and he has a spot in the DEMA Hall of Fame to prove it. In 2011, Hughes received the DEMA Reaching Out Award for helping to evolve the live-aboard diving industry over the past three decades. That same year, after spending more than 25 years building his former live-aboard company, Peter Hughes Diving, Inc., the 40-year scuba diving veteran threw all of his expertise and energy into a new live-aboard venture, the DivEncounters Alliance

For centuries, the waters off the Outer Banks of North Carolina have claimed hundreds of vessels. Here are the best shipwrecks for divers in the Tarheel State.

For thousands of years sea monsters have appeared on maps as both warnings to travelers and as decorations. Chet Van Duzer explores these monsters in his new book _Sea Monsters on Medieval and Renaissance Maps _and gives readers a better understanding of their place and purpose in history.

Diving can be heavenly, never more so than in the presence of one of the loveliest creatures of the underwater world, angelfish. Luckily they are found in almost all parts of the globe, as these images taken by members of [ScubaDiving.com's Forum ](http://forums.scubadiving.com/forum.php)attest.

SCUBAPRO'S Mark 17 balanced diaphragm first stage is designed for harsh environments and cold water. The pneumatically balanced G-2-60 second stage is made with metal components in the inlet tube, orifice, inhalation control knob and hose connector to optimize cold-water performance. It is quipped with both a VIVA switch and inhalation control knob, and the left-right hose attachment makes it easy to rig for tech diving.

North of Tenerife, in the Canary Islands' protected area called Acentejo, is this basalt formation, La Rapadura. During an eruption, lava basalt came into contact with the sea, forming the spectacular structure.

The MP206 Chameleon mask from IST Sports is made from a liquid-injected, hypoallergenic silicone that is soft and supple, resulting in a skirt that offers comfort as well as a watertight fit. Its raked inverted-teardrop dual-lens design delivers a wide field of view. To enhance the underwater view, the mask is fitted with a new type of ultra clear lens that allows for increased light transmission.

Professional photographers will appreciate the even coverage and superior quality of light that can only be produced with a round flash tube and custom made power-coated reflector. The DS161 Lithium is the first underwater strobe with a built-in LED video light and Lithium Ion battery technology. When combined with a compatible TTL system, the strobe automatically adjusts brightness to provide perfect exposure when shooting macro, portrait or wide angle.