Historical Examples. 1  The most primitive form of the first type of dermal structures is that of the placoid scales of Elasmobranchii. 2  That is what they call the dermal nitrate test, I believe is the correct name that they give it. 3  The skeleton of these great fins is almost entirely composed of dermal bone.
Swai Fish. The Swai Fish, or Iridescent Shark, is a rather unremarkable fish that is typically farmed in Asia. However, it seems to create a bit of controversy in what contexts it appears. Whether it is to be kept in an aquarium or to be eaten at the dinner table, the Swai Fish has opposing viewpoints. The Iridescent Shark is not really a shark but gets its name because it resembles on in appearance. It can be found on the market as Swai Fish and shark catfish. It is a member of the catfish family. As a juvenile, the Swai Fish radiates a glow from the edges of its fins, thus given the name Iridescent Shark. It can grow up to four feet in length and weigh up to nearly 100 pounds.
In Chinese Mythology, the Peng and Kun are different forms of the same creature. Translated from the ancient literature, Zuhang Zi's 'Xiao Yao You'; There lived a kind of giant mysterious fish in the northern sea.These fish are called Kun. Nobody knows how big these fish actually are. They can turn into giant birds.hen they fly, their wings are like the colorful clouds in the sky. When there is a storm in the northern sea, the Peng will fly to the southern sea. They travel three thousand (Chinese miles) in one flap of their wings.