350 REPORT OF COMMISSIONER OF FISH AND FISHERIES. 
Propucts oF THE FIsSHERIES—Ivory, BoNE, AND SHELL. 
Specimens of wory: 
One narwhal tusk, U. 8. Fish Commission. 
Two walrus tusks, 15 pounds, U. 8. Fish Commission. 
Two walrus tusks, U. S. Fish Commission. 
Two walrus tusks, scrimshawed, U. 8. Fish Commission. 
Two sperm-whale tusks, U. 8. Fish Commission. 
Two sperm-whale tusks, U. 8. Fish Commission. 
One sperm-whale tusk, scrimshawed, U. 8. Fish Commission. 
One sperm-whale tusk, scrimshawed, U. 8. Fish Commission. 
One sperm-whale tusk, scrimshawed, U. 8. Fish Commission. 
One lower jaw of sperm-whale with teeth, U. 8. Fish Commission. 
One lower jaw of sperm-whale, scrimshawed, U. 8. Fish Commission. 
Nine alligator teeth, rough and polished, U. 8. Fish Commission. 
Specimens of whalebone: 
Section of baleen from mouth of finback whale, U. 8. Fisk Commission. 
Two slabs of baleen from mouth of right whale, U. 8. Fisk Commission. 
One whalebone back supporter, U. S. Fish Commission. 
One piece of baleen, U. 8. Fish Commission. 
One whalebone rule, U. 8. Fish Commission. 
One lot whalebone, U.S. Fish Commission. 
One lot shredded baleen, U. 8. Fish Commission. 
One coil baleen, U. 8. Fish Commission. 
Three lots whalebone strips, U. 8. Fish*Commission. 
One lot whalebone strips, U. 8. Fish Commission. 
One whalebone divining rod, U. 8. Fish Commission. 
One whalebone cane, U. 8. Fish Commission. 
One whalebone cane, U. 8. Fish Commission. 
Specimens of shell: 
Hawksbill turtle, stuffed and mounted, with polished shell, U. 8. Fish Commission. 
Tortoise shell, rough (Philippines), U. 8. Fish Commission. 
One back plate of tortoise shell, partly polished, U. 8. Fish Commission. 
One belly plate of tortoise shell, partly polished, U. 8. Fish Commission 
Two back plates, hawksbill, rough, U. 8. Fish Commission. 
Three back plates, loggerhead, rough, U. 8. Fish Commission. 
» 
Propucts OF THE FISHERIES—PEARLS AND NACRE. ‘ 
Ninety-one valves of fresh-water pearl-bearing mussels from Mississippi Basin, 
polished to show nacre or mother-of-pearl. 
Seven valves of fresh-water pearl-bearing mussels from Mississippi Basin, showing 
formation of pearls. (Lampsilis rectus, L. ligamentinus, Quadrula ebena.) 
Seven valves of fresh-water pearl-bearing mussels from Mississippi Basin, showing 
irregular pearly formations or ‘‘slugs.’? (Lampsilis ligamentinus, Quadrula 
ebena, @. undulata. ) 
Pearl-bearing fresh-water mussels, showing different colored nacre: 
Two valves Lampsilis alatus, Mississippi River, purple nacre. 
Two valves Lampsilis rectus, Mississippi River (lowa), purple nacre. 
Two valves Lampsilis fallaciosus, Mississippi River (lowa), pink nacre. 
Two valves Lampsilis ligamentinus, Mississippi River, pink nacre. 
Two valves Symphynota complanata, Mississippi River (Iowa), salmon nacre. 
Two valves Symphynota costata, Mississippi River, yellow nacre. 
Seven valves Unio crassidens, Mississippi Basin, purple, salmon, and pink nacre. 
Three valves Unio gibbosus, Cumberland River, Tennessee, purple nacre. 
Two valves Anodonta footiana, Indiana lakes, salmon nacre. 
One valve Quadrula tuberculata, Cumberland River, Tennessee, purple nacre. 
Two valves pearl oyster (Meleagrina margaritifera), Indian Ocean. 
Two valves pearl oyster (Meleagrina), Paumotu Archipelago, South Pacific Ocean. 
Two abalone or ‘‘sea ear,’’ Haliotis, southern California. . 
Five abalone or ‘‘sea ear,’’ Haliotis, polished, southern California, 
One Florida conch, Strombas gigas. 
