Sea-Urchin Small 320×264 Medium 640×527 Large 1024×844 Download TIFF Original 2400×1978 | (4.5 MB) Description The shell of a sea-urchin without spines. Keywords echinoidea Galleries Sea Urchins and Sea Stars Source: Sarah Cooper, Animal Life: In The Sea and On The Land (New York: Harper & Brothers, 1887) 64
