Cassis Rula (Linnaeus) Small 223×320 Medium 446×640 Large 713×1024 Download TIFF Original 1672×2400 | (920.5 KB) Description "In the genus Cassis the shell is oval, convex, and the spire is not of considerable height. These animals keep near the shore, in shallow water." Keywords cephalous mollusca, Mollis, mollusks, snail sea shell Galleries Snails and Slugs Source: Hazlitt Alva Cuppy PH.D., Editor Beauties and Wonders of Land and Sea (Springfield, OH: Mast, Crowell & Kirkpatrick, 1895)
