BIGgourami;1856679; said:just by sheer commoness *is that a word?* i would have to venture a first guess at a tessilata or honeycomb eel... better pic and/or desription required
I would go with Pholidichthys leucotaenia (Engineer Goby) by general pattern and shape.

Plus if you look closely in the original id pic you can see a caudal fin. I think Big G was reffering to the fact that many more people have a tessy than an engineer.