Lepidosteus, [503], [149], [153], [160], [258], [262], [273], [274], [283], [284], [291];

scales, [185], [186], [188];

vertebral column, [201], [202], [204];

skull, [229];

alimentary canal, [257];

spiral valve, [268];

pyloric caeca, [274];

air-bladder, [297], [299], [310];

spiracular pseudobranch, [334], [335];

branchial circulation, [334] n., [336];