Scor"ion, mus"les, veno-pericardial, [177]
Scor"ion, muscular system, [247], [268], [269]
Scor"ion, nerves to Cheliceræ, [237]
Scor"ion, olfactory organs, [220]
Scor"ion, operculum of male, [189], [206], [212]
Scor"ion, pecten, [359], [366], [371], [373], [374], [377]
Scor"ion, under surface, [372]
Scor"ion, uterus, [189], [202], [203], [204], [205], [212]
Sea-scorpions, [25], [26], [27], [56], [150], [170], [191], [208], [221], [232], [235], [241], [349], [359]
Segmentation, branchiomeric, [124]