Something coming out of my stingray?

  • We are currently upgrading MFK. thanks! -neo
You are correct Pete, technically rays are a cartilaginous fish related to sharks , cartilaginous fish are jawed fish and skeletons made of cartilage rather than bone. The skeleton is cartilaginous. The notochord--A flexible rod-like structure that forms the supporting axis of the body in the lowest chordates and lowest vertebrates and in embryos of higher vertebrates, which is present in the young, is gradually replaced by cartilage. The class Chondrichthyes ( Cartilaginous fish) also lack ribs, so if they left the water, the larger species's own body weight would crush their internal organs long before they would suffocate.
So my bad on not clarifying the no ribs aspect. But they do have a structure resembling ribs, but is not bone nor does it have marrow. The gills are still located inside the gill slits on the underside of ray
 
A+ for shadowStryder

I just gotta say that we have a really intelligent ray community. Happy to be here!

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Sadly it didn't make it through the night. It was such a nice specimen too, was really hope to keep it for a long time. Anyways thanks alot for the help guys. If there any good news to come out of this, is that the other Ray that arrive is very healthy, active and feeding well.
 
Sadly it didn't make it through the night. It was such a nice specimen too, was really hope to keep it for a long time. Anyways thanks alot for the help guys. If there any good news to come out of this, is that the other Ray that arrive is very healthy, active and feeding well.
Sorry to hear it Vulcan.
I have seen this type of thing a few times now and in each case the ray survived, however the reason this happened was probably something to do with the stress of been moved\shipped, all the cases I knew happened randomly with settled rays in a stable environment. It was the worst prolapse I ever saw though.
Real shame!
 
You are correct Pete, technically rays are a cartilaginous fish related to sharks , cartilaginous fish are jawed fish and skeletons made of cartilage rather than bone. The skeleton is cartilaginous. The notochord--A flexible rod-like structure that forms the supporting axis of the body in the lowest chordates and lowest vertebrates and in embryos of higher vertebrates, which is present in the young, is gradually replaced by cartilage. The class Chondrichthyes ( Cartilaginous fish) also lack ribs, so if they left the water, the larger species's own body weight would crush their internal organs long before they would suffocate.
So my bad on not clarifying the no ribs aspect. But they do have a structure resembling ribs, but is not bone nor does it have marrow. The gills are still located inside the gill slits on the underside of ray

A little more info, ...no fish has marrow. Fish blood is not produced in any organ. Fish blood cells are nucleated and new blood cells are produced via cell division.
 
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