Might be M dayii... but leaning towards an oddball pattern TT... or there is an undescribed species that looks something between favrus and dayii... THe patterns is similar yet different to my big girls.. what size is it?
also about a year after i got him he had this lump sticking out of him with this line thingy sticking out. So i took him out and found out it was fishing line and there was a hook sticking out of him! i took it out and hes been great ever since