That IS a bummer! because my Aquatic Race will be linked to an Earth legend. Maybe the artists and programmers at Cryptic will include such "fish-tail" options....After all maybe some life-forms could be Ocean dwellers. I'll have to give them legs, and explain it in my story until Cryptic gives us more choices!
ALL of you have given me lots of good ideas, though I want my character to have an "Aquatic" look about them. Things like ridges or spikes on head, sharp teeth, maybe a fish-like tail for when my away-team battles them in water. The fish-tail part may be asking too much!... Can that be done as Well?