An undescribed species of the corallivorous goniasterid,
Evoplosoma watlingi n. sp., from Bear Seamount in the North Atlantic is described in conjunction with an overview of other species within the genus
Evoplosoma.
Hippasteria tasmanica McKnight, 2006 is re-classified within
Evoplosoma. In situ images of Atlantic deep-sea Goniasteridae, including
Evoplosoma. spp.,
Hippasteria phrygiana and
Circeaster americanus, are presented herein. Observations of several Evoplosoma species and the Atlantic
C. americanus are documented for the first time, recorded by the R/V
Okeanos Explorer. The feeding duration of
C. americanus is also documented for the first time.