面包海星、馒头海星
A mature C. novaeguineae is pentagonal to subglobose in shape with an inflated appearance and much-abbreviated arms. It can grow to a diameter of 30 cm (12 in). Rows of tube feet are on the underside, and it has a central mouth. The colour is very variable and includes a mottling with darker and lighter shades of fawn, brown, orange, yellow and green. The armoured body wall is made of calcareous ossicles which are supported internally by pillars which buttress the ambulacra. The armouring contains pits into which the tube feet can be retracted. The body cavity is filled with water. On the dorsal face, they can be covered with small conical tubercles, as well inside as outside of papular areas.