seen from China
seen from Singapore
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seen from Russia
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seen from United States
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seen from United States
cookiecutter shark !
It was hard to find live pictures of these guys!
Have you seen the cookiecutter shark (Isistius brasiliensis)?
I have now
Yes, in photos/videos
Yes, irl
I'm not sure
Both photos thanks to J. Lambus Photography. Cookiecutter sharks are bioluminescent. They approach the surface at dusk, and migrate about 1.9mi down at dawn.
Do you believe your shiny mew is rare? Think twice. The Taillight Shark (Euprotomicroides zantedeschia) is an extremely rare, small oceanic shark. This small shark is only know from two specimens found in Atlantic, and a recent third and fourth record from off Chile, near Pacific Juan Fernandez Islands .
The species possesses a luminous organ in a large abdominal pouch which covers the cloaca, this character is unique to the genus. Reproduction is assumed to be ovoviviparous. Its pectoral fin shape and orientation suggest hovering ability within the water column. Given the species’ oceanic occurrence, small size and distribution, it is not likely to be captured regularly in any fisheries, and as such there are no apparent threats. However, at this stage it cannot be assessed beyond Data Deficient, given that it is known from only four specimens.
Imagen: Taillight shark assumed mature female (50 cm in lenght, and Drawings by Inge van Noortwijk, Naturalis.
Reference: Stehmann et al. 2016. Re-description of the rare taillight shark Euprotomicroides zantedeschia (Squaliformes, Dalatiidae), based on third and fourth record from off Chile. Cybium
