They lived 20 years in an aquarium and discover that they are an unknown species

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Japanese biologists determined that the two specimens are in danger of extinction. The curious name they gave them. Look at the video

A couple that for more than 20 years sailed the waters of the Acuario de KagoshimaIn Japan, it finally belongs to an unknown species, according to a group of biologists.

Since 1997 these two fish that prefer to lie on the bottom did not attract much attention from the public that attended the place daily.

In fact, many they thought they were giant guitar fishshark-like rays that live off the western shores of the Indian Ocean, reports Asahi Shimbun and spread RT.

Anyway, the biologist Keita Koeda, from the Kuroshio Biological Research Institute, examined the two specimens and found that they did not belong to the species they assumed.

It relied on some features: their heads are not as sharp and their dorsal fins are rounder. They are also differentiated by their coloration, with characteristic spots on the dorsal disc and on the lower part of the muzzle.

It was then that due to the shape of the head, reminiscent of “Mononoke” spirits from Japanese mythology, was baptized as “Rhynchobatus mononoke” .

In addition, according to what was analyzed, it was classified as a new species within the genus according to the study published in the journal Ichthyological Research.

The researchers also described a third newborn specimen in the same aquarium.

It has a morphology and coloration similar to adults, “except for the bottle-shaped snout, the larger head and a distinctive black spot in the dorsal middle between the eyes.”

Biologists are blunt and insist on including these specimens on the list of endangered animals. “Although ‘Rhynchobatus mononoke’ is occasionally used with culinary purposes, the catches were very rare in the East China Sea, “they say.


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