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.. 6 . — Barbels and tactile sense organs, (After GOODE in U.S. F.C.) 
55. Cusk, Ophidium. 56. Drum-fish, Pogonias. 57. Sea-raven, Hemitripterus, 
58. Catfish, Amiurus. 59. Spoon-bill sturgeon, Polyodon (ventral view of snout). 
_ 60, Sea-robin (Gurnard), Prionotus. 
47 
