Our phylogenetic analyses support the contention that both the genus Philaster and the family Philasteridae are monophyletic. As revealed in previous molecular phylogenetic analyses (Gao et al. 2012a,b), Parauronema virginianum falls into the Uronema clade, and P. longum is sister to Plagiopyliella, Thyrophylax and Entorhipidium.