Glowing Mudskippers and Flashlight Frogs – Two Bioluminescent Mystery Beasts?

Posted by: Karl Shuker on June 14th, 2014

Bioluminescence is the emission of light by certain life forms. These include many known species of bacteria, fungi, protozoans, invertebrates, and fishes, but there are also several controversial examples, including the following couple – both of which may constitute remarkable new species still undescribed by science.

Flashlight frog

(c) Connor Lachmanec (aka The Morlock on

One of these is a mudskipper-like freshwater fish from Indonesia that allegedly emits a pulsating red light and has been observed at firsthand by an experienced Westerner. The other is a tree frog from Cameroon that possesses a glowing blue flashlight-like spot on its snout and has even been sold in the European exotic pet trade. Yet neither one of these extraordinary creatures corresponds to any species currently known to science.

Further details can be accessed here on my ShukerNature blog.

Karl Shuker About Karl Shuker
My name is Dr Karl P.N. Shuker. I am a zoologist (BSc & PhD), media consultant, and the author of 25 books and hundreds of articles, specialising in cryptozoology and animal mythology. I have a BSc (Honours) degree in pure zoology from the University of Leeds (U.K.), and a PhD in zoology and comparative physiology from the University of Birmingham (U.K.). I have acted jointly as consultant and major contributor to three multi-author volumes on cryptozoology and other mysterious phenomena. I am the Life Sciences Consultant to The Guinness Book of Records/Guinness World Records (Guinness: London, 1997-present day), and was consultant to Monsters (Lorenz Books: London, 2001), as well as a contributor to Mysteries of the Deep (Llewellyn: St Paul, 1998), Guinness Amazing Future (Guinness: London, 1999), The Earth (Channel 4 Books: London, 2000), and Chambers Dictionary of the Unexplained (Chambers: London, 2007). I appear regularly on television & radio, was a consultant for the Discovery TV series Into the Unknown, and a question setter for the BBC's quiz show Mastermind. I am a Scientific Fellow of the Zoological Society of London, a Fellow of the Royal Entomological Society, a Member of the Society of Authors, and the Cryptozoology Consultant for the Centre for Fortean Zoology (CFZ). I have written articles for numerous publications, including Fortean Times, The X Factor, Paranormal Magazine, FATE, Strange Magazine, Prediction, Beyond, Uri Geller's Encounters, Phenomena, Alien Encounters, Wild About Animals, All About Cats, All About Dogs, Cat World, etc. In 2005, I was honoured by the naming of a new species of loriciferan invertebrate after me - Pliciloricus shukeri.

One Response to “Glowing Mudskippers and Flashlight Frogs – Two Bioluminescent Mystery Beasts?”

  1. Goodfoot responds:

    The Muddy Mudskipper Show!

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