Genus Thrinacophora Ridley, 1885

Definition

Thrinacophorinae lacking echinating spicules, having a densely compressed axial skeleton, without axial fibers, cored by short oxeas, styles or/and strongyles in criss-crossed reticulation and a plumose extra-axial skeleton composed of longer styles or anisoxeas. Microscleres are raphides in trichodragmata (e.g., Modified from Hooper, 2002, changes are in bold).