
Telescopefish (Gigantura chuni) from the Gulf of Mexico between 1,500 and 1,200m depth.
Telescopefish (Gigantura indica and G. chuni) are deepwater fishes with a spectacular appearance. The telescoping eyes might be used to track bioluminescent prey items in the darkness of the depths. Further evidence that these fishes eat bioluminescent prey items include a stomach with a black tissue lining. The function would be to conceal recently consumed prey items that might still be glowing, keeping the predator from becoming a prey item to larger fishes. The sharp and significant teeth undoubtedly subdue prey. One of the miraculous aspects to these species is that the larvae look nothing like the adults and a tremendous metamorphosis takes place. This individual was trawled from the Gulf of Mexico between 1,500 and 1,200m depth, 2016. Image courtesy of the DEEPEND project.

Gigantura chuni is a telescope fish found mainly in the deep, tropical waters of the Atlantic, Indian and Pacific Oceans between 18°N-21°S. Larvae are commonly caught between 30-170 m and adults can be found between 500-1,500 m. It is also found in the Gulf of Mexico. In the eastern central Atlantic, this species is found between 20°N and 10°S including the Gulf of Guinea. There are published accounts of this species off of South Africa.
comments (11)
Posted 7 years ago
Posted 7 years ago
Was the image taken at depth or near sea level? Posted 7 years ago
We’re continuing our series highlighting some of the most fantastic body parts belonging to wildlife. Today, we are focusing on eyes! There are so many creatures with remarkable eyes that it was quite a struggle to choose which to feature today!
Telescopefish (Gigantura chuni) have huge, tubular eyes with large lenses to detect the silhouettes of prey as they swim vertically in the water column at depths of approximately 500-2000 meters! These conspicuous eyes are highly adapted, allowing the telescope fish to see in the twilight zone. {Spotted in the Gulf of Mexico by Anotheca} #Telescopefish #Giganturachuni
https://www.facebook.com/jungledragonwildlife Posted 4 years ago