鞘 - sheath, case, margin

sea pineapple (Halocynthia roretzi)

outer roofed structure for protecting cultural assets and historic sites

interest margin

to slip out of one's scabbard (of swords)

myelin sheath (around the axon of a neuron)

the world is at peace; bows in bags and swords in sheaths

ootheca; egg case

red-lacquered sword sheath

sea squirt; ascidian

to draw a sword

coleopterans; beetles

spear squid (Loligo bleekeri)