How to distinguish toothfish?The 3 main ways to distinguish toothfish!
First of all: from the ventral view, the inner edges of the lower jaws on both sides will be U-shaped or V-shaped. Only V-shaped Hoplias malabaricus
Second: look closely at the ventral surface, there will be several holes in the ventral side of the lower jaw on both sides of the toothfish in a row, this is its sensory system (laterosensory system), if these holes are arranged in groups (mostly 4 groups of 4)There are only black teeth. If they are arranged one by one, it is necessary to look at a few on the side. It is fun to count this. I counted three and I was tired. The secret is to catch the fish in a plastic bag and take a high flashlightAccording to the ventral surface of his head, the hole is actually very clear, and his hands are sore to be real.
Third: Take a side photo of the fish with the camera. You need to take a full-body photo and focus as clearly as possible! To count the lateral line scales (lateral line scales)
A.Viewed from the ventral surface, the inner edges of the lower jaws on both sides will be U-shaped or V-shaped. Only V-shaped Hoplias malabaricus is common
B.Looking closely at the ventral surface, there are several holes in the ventral side of the jaws on both sides of the toothfish, which is its laterosensory system. If these holes are arranged in groups (mostly 4 in groups of 4), thenThere are only black teeth. If they are arranged one by one, it is necessary to look at a few on one side. It is fun to count this. I counted three and I was tired. The secret is to catch the fish in a plastic bag and take a tall flashlight to take it.On the ventral surface of the head, the hole is actually very clear to see.
The hole of the black tooth sensory system is the most special, and it is a group of several groups. In addition, in this picture, you can see the U-shaped jaw, like the picture
The number of lateral line scales is 9
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