Nick & Bart
I think it unlikely you will ever get 100% positive ID's here. I have been down this route with what I thought was G. herrei. I asked Fishbase to submit some pics. to Dr. Randall and got this reply (ignore the bit about Oxycheilinus):
Hi Jim, Here is the email I received from Dr Randall. I think it won't hurt to keep the pictures on the thumbnail pages and let's just see if we get any comments from other viewers/users of FishBase.
Have a good day,
I have a paper by Eugenie Bohlke published in Pacific Science (2000) “Notes on the identity of small, brown, unpatterned Indo-Pacific moray eels, with descriptions of three new species.” One is Gymnothorax herrei, another G. pseudoherrei. It is difficult to distinguish these six species even with specimens in hand.
Oxycheilinus is nearly as difficult. I have trouble identifying adults. I checked and have no photos that look like that juvenile.
Sorry I can’t help on these two images.
I managed to find the paper Dr. Randall refers to and you may find it useful. The link is: http://scholarspace..../1665?show=full You will need to click at the bottom in the box headed "Item File(s)" to open a 22 page .pdf
Hope you find something useful
Edited by JimG, 28 April 2013 - 12:37 AM.