I believe it is a young white spotted bamboo . Mine looks very similar. Great shark. Isn't it cool the way they prop up on the front fins when they eat.
"This white spotted bamboo mother shark gave birth at the Detroit Zoological Institute. The birth surprised researchers, as the mother had not been in contact with a male shark for six years" (copied from google search)
white spotted bamboo
(Chiloscyllium plagiosum)
Jason