Appa"rtus, respiratory, [148]
Appa"rtus, suctorial, of Petromyzon, [287]
Appendages, branchial, of Ammocœtes, [161], [162], [163], [164]
Appe"dages, bra"chial, of Limulus, [164]
Appe"dages, bra"chial, of internal, [149]
Appe"dages, derivation of suctorial apparatus of Petromyzon from, [290]
Appe"dages, disappearance of, in transformation of Arthropod into Vertebrate, [386], [413]
Appe"dages, evidence of, in prosomatic region of ancient fishes, [342]
Appe"dages, muscles, in Limulus and Scorpion, [247]
Appe"dages, prosomatic, of Gigantostraca, [234]