I think so. This is why I hate names. We'll go scientific. The much more hardy bluespotted, or masked, ray (dasyatis kuhlii) gets to be about 18 inches across. The much less hardy bluespotted ribbontail (taeniura lymma) is smaller at about 15 inches across. The dasyatis ray is a shining example of an eagle ray in that it has pointed wing tips on the edges of its disc and flaps its wings as it swims. It also has a very long tail, so it needs more manuevering space. The taeniura ray on the other hand will be smaller and shorter in the long run, if it survives past three weeks in a tank.