The Longfin Eel - or Flesh Ripper - is Jeremy Wade's target. And he gets up and close and personal with them! Pic by Icon Films.

THE NEW ZEALAND LONGFIN EEL – otherwise known as The Flesh Ripper – is the fascinating target of Jeremy Wade in the second episode of his latest River Monsters series on ITV.

As reported in Angler’s Mail magazine (read the January 10, 2012 cover-dated issue), the series is proving a smash hit for ITV yet again!

Here, online, we reveal some more about Jeremy’s latest conquest…

With a Latin name of Anguilla dieffenbachia it is a different species to Anguilla anguilla commonly caught in Britain and throughout Europe.

Angler’s Mail is aware that these monsters have drawn only the hardest of the hardcore UK anglers down under to fish for them, and as they grow to over 6 ft and can weigh over 40 lb it’s no surprise.

The British rod and line-caught freshwater eel record stands at 11 lb 2 oz.

The New Zealand longfin eel’s shape makes it look more like a 12-inch (30-centimeter) Italian sub sandwich than a fish. The creature’s long, slender body can grow up to 6.5 feet (2 meters) over the course of its lifetime.

This eel — one of the largest freshwater eels in the world — gets its name from having a dorsal fin (top fin) that’s longer than its ventral fin (bottom fin). And although it has scales and fins like a fish, these scales are extremely tiny and embedded deep within its skin.

Longfin eels have been around for at least 65 million years, making their home in the inland rivers, lakes and other fresh waters of New Zealand.

Maori, the indigenous Polynesian people of New Zealand, have incorporated these aquatic animals into their culture and traditions for centuries. The Maori consider the eels a food source and good luck charms. Eel-like characters, such as the mythical monster Taniwha, even show up in Maori folk stories.

Read Angler's Mail magazine for more on River Monsters, its performance so far, and other TV angling.

Unlike other animal species, longfin eels reproduce only once in their lifetime, and after they breed, they die. At the ages of 23 and 34, respectively, the males and females migrate upstream from freshwater to the Pacific Ocean for the purpose of breeding future generations.

As they travel, they undergo a physical transformation: their skin gets darker and their eyes get larger. They stop eating when they get to the ocean and never eat again. The female’s final act before death is laying millions of eggs for the male eel to fertilize.

Jeremy said: ‘Eels have an exceptional sense of smell, so I chummed the water with the liquid from fish guts to bring them in and get them hungry. But I was very careful not to let any bits fall in the water because this would start to satisfy their hunger.’