Oyster Small 320×255 Medium 640×510 Large 1024×816 Download Tiff Original 2400×1912 | (858.3 KB) Description Oysters grow for the most part in marine or brackish water. Inside a usually highly calcified shell is a soft body. Keywords Brackish, mollusk, oyster, shell Galleries Clams and Other Bivalves Source: James D. Dana, New Text-book of Geology (New York: Ivison, Blakeman & Company, 1883) 181