Recent DNA work has shown that Hippasteria spinosa
is the same as Hippasteria phrygiana
. The latter takes precedence as it is the older name.
Note Author: Neil McDaniel
Reference: Foltz, D.W. et.al. 2013. Global population divergence of the sea star Hippasteria phrygiana corresponds to the onset of the last glacial period of the Pleistocene. Marine Biology (2013): 1-12.