P3E1R1I1S1A1R1C3S1
13 points
PERISARCS is validvalid
PERISARC, a protective covering of certain hydrozoans [n]
PERISARC, a protective covering of certain hydrozoans [n]
PERISARC, a protective covering of certain hydrozoans [n]
PERISARC, a protective covering of certain hydrozoans [n]