This Isidid from Warwick Seamount exhibits branching at the nodes and the internodes, although nodal branching dominates the colon. Image courtesy of Exploring Alaska's Seamounts 2002, NOAA/OER.
This Isidid from Warwick Seamount exhibits branching at the nodes and the internodes, although nodal branching dominates the colon. Image courtesy of Exploring Alaska's Seamounts 2002, NOAA/OER.