PLATE XLVII. 



Zone of Amaltheus oxynotus. 



Fig. 1. Amaltheus Lymensis, Wright. Side view, natural size, of a fine specimen 



with the shell. 



2. — — Front view of do. do. 



3. — — Lobe-line complete, highly magnified. 



4. Simpsoni, Bean. Side view, natural size. Woodwardian Museum, 



Cambridge. 



5. — Lobe-line of do. do. 



6. — — Side view of smaller specimen, natural size. 



7. — — — Front view of do. do. 



