On the Anatomy of Vertebrates: Fishes and reptiles

abdominal air-bladder alisphenoid animal appendages artery articular articulated attached backward Batrachia body bones bony brain branch branchial branchial arches called canal capsule cartilage cartilaginous caudal cavity centrum cerebellum cervical Chelone coalesced condyle coracoid cranial cranium Crocodile Crocodilia dentary dentine developed distinct dorsal endoskeleton expanded extends fibres filaments fore frontal ganglion gills hæmal arch hæmal spine hæmapophysis homology humerus inner inserted Lancelet Lepidosiren ligament limbs longitudinal lower jaw mastoid maxillary median membrane modifications muscles muscular myelon nasal nerve neural arch neural spine notochord occipital olfactory opercular optic lobes orbitosphenoids organ Osseous Fishes ossification outer pair palatine parapophyses parietal pectoral pectoral fins Plagiostomes plates pleurapophyses Polypterus posterior premaxillary prosencephalon pterygoid rays Reptiles ribs scapula scutes segment Sharks side skeleton skull slender species spinal Sturgeon surface tail teeth terminal tooth transverse trunk upper vascular veins ventral ventricle vertebræ vertebral column vertical vomer