The Structure and Classification of Birds

abdominal absent Accipitres aftershaft air sacs ambiens Anatomy Apteryx Archaeopteryx articulate attached basipterygoid processes BEDDARD biceps slip birds bone brevis bronchial semi-rings cæca carotids catapophyses caudal cervical vertebræ characters clavicle coracoid desmognathism developed digit dinosaurs dorsal tract ectethmoids expansor secundariorum extensor feathers femur fleshy flexor FORBES front FÜRBRINGER furcula fused GADOW gall bladder gallinaceous birds GARROD genera genus groups of birds hallux Hesperornis holorhinal humerus HUXLEY ilium inch inserted intercentra intestine intrinsic muscles lacrymal lateral ligament Limicolæ liver lobes longus loop maxillæ maxillo-palatines median membrane middle line MITCHELL MIVART muscle arises muscle formula muscular notches oblique septa oil gland Opisthocomus ossified ostrich Palamedea palatines PARKER parrots Passeres passerines patagium pectoralis pelvis posterior posteriorly present pterygoids pterylosis pubis ratites rectrices remiges reptiles Rhea ribs scapula schizognathous semitendinosus separate septum skull species spinal Steatornis Steganopodes sternum storks structure syrinx tendon tensor patagii tinamous tracheal rings ventral tract vomer