Though the pattern is similar to some Scobina you can see the tall Mantle on those pups which is a trait found in Hystrix,Scobina have a much lower mantle when viewed from the side,Scobina is a species in its own right imo..no question.
Very nice pups by the way,looks like they will remain a light brown base like Hystrix.
Keep the updates coming,its a very interesting mix.