Caulophacus (Caulophacus) discohexaster Tabachnick & Lévi, 2004, NIWA 126342, spicules: A hypodermal body pentactin; whole and enlarged tangential and proximal ray ends B hypoatrial body pentactin; whole and enlarged tangential and proximal ray ends C hypodermal stalk pentactin; whole and enlarged tangential and proximal ray ends D choanosomal hexactins; two whole and enlarged ray end E choanosomal diactins; two whole and four enlarged ends and one central swelling F dermal body pinular hexactin G atrial body pinular hexactin H stalk dermal pinular hexactin I discohexactin J hemidiscohexaster K discohexaster and magnified terminal ray and terminal disc. Scale bars in A apply to B and C; scale bar is the same for F–H, I–K.