Morays- difference between Gymnothorax and Muraena genus

[Miguel]

As strange as it may seem, there is very little info netwise on this two genus of Moray Eels.

Some say there really is no discernible separation, some say the difference lies ( solely ) in the nasal tubes ( anterior or posterior ), some say in the number of vertebrae, but, all in all, and skipping mytochondrial and genetic differences which i cannot really get into due to my lack of biology basics, from a practical point of view, is there any difference, and, if so, what?

I am waiting for delivery of several eels, Muraena and Gymnothorax, from the Azores, and would like to grasp the distinction, if any...

Thank You

 

[Cichlaholics Anonymous]

I don't have an answer, but as a moray enthusiast, I'm curious as to what species you're getting. Aren't Enchelycore anatina found in that area?



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[Miguel]

Yes they are.

I am getting Muraena Helena, M. augusti and gymno Unicolor.

 

[Miguel]

I think, comparing species of both genus in front of me, that I have it ( empirically ) nailed down to the fact that Muraena hava four "nostril tubes", 2 pointed to the front, 2 more to the back of the snout, and Gymo have only one set, to the front of the snout)

There must be many other diferences, but this is all I can seem with the limited set of animals from both genus in my posession....