A sea sponge on a thin stalk, roughly shaped like a gourd. The sponge's surface is covered in finger-like projections. A crab-eater seal's molar is directly behind the sponge.

Antarctic gourd sponge, Chondrocladia antarctica, with a crab-eater seal's tooth for size comparison
#sciart #Chondrocladia #invertebrateart #porifera #demospongae