On the Anatomy of Vertebrates ...: Fishes and reptiles |
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Page xxxiv
... external agencies as a species may have been originally adapted to exist in , will militate against that existence in a degree proportionate , perhaps in a geometrical ratio , to the bulk of the species . If a dry season be gradually ...
... external agencies as a species may have been originally adapted to exist in , will militate against that existence in a degree proportionate , perhaps in a geometrical ratio , to the bulk of the species . If a dry season be gradually ...
Page xxxv
... external conditions and inherent tendencies to variety , in carrying on , as he believes , the deviations from type to specific and higher degrees of difference . 4 All these , however , are conceptions of what may have , not ...
... external conditions and inherent tendencies to variety , in carrying on , as he believes , the deviations from type to specific and higher degrees of difference . 4 All these , however , are conceptions of what may have , not ...
Page 8
... externally ; no amnios or external allantois . Subclass III . PLAGIOSTOMI.- Endoskeleton cartilaginous , or partially ossified ; scapular arch detached from occiput ; exo- skeleton as osseous granules or tubercles ; body with medial and ...
... externally ; no amnios or external allantois . Subclass III . PLAGIOSTOMI.- Endoskeleton cartilaginous , or partially ossified ; scapular arch detached from occiput ; exo- skeleton as osseous granules or tubercles ; body with medial and ...
Page 9
... external spiracles , six or seven on each side , blood red . Mouth subcircular , suctorial , but longitu- dinal when closed . Olfactory sac communicating with , or produced into , a canal . Gen. Myxine . Ex . Hag - fish . Petromyzon ...
... external spiracles , six or seven on each side , blood red . Mouth subcircular , suctorial , but longitu- dinal when closed . Olfactory sac communicating with , or produced into , a canal . Gen. Myxine . Ex . Hag - fish . Petromyzon ...
Page 12
... columns fused with the jaws . Optic nerves not decussating . Valves of bulbus arteriosus multiserial . Gills laminar , with a small proportion of the border free ; a single external gill - aperture 12 ANATOMY OF VERTEBRATES .
... columns fused with the jaws . Optic nerves not decussating . Valves of bulbus arteriosus multiserial . Gills laminar , with a small proportion of the border free ; a single external gill - aperture 12 ANATOMY OF VERTEBRATES .
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Common terms and phrases
abdominal air-bladder alisphenoid appendage artery articular articulated attached backward Batrachia body bones bony branchial branchial arches called canal capsule cartilage cartilaginous caudal cavity centrum cervical Chelone Chelonia coalesce coracoid cranial cranium Crocodile Crocodilia dentary dentine developed dorsal duct elongated Endoskeleton exoccipitals expanded extends fibres fore forward Frog frontal gills hæmal arch hæmal spine hæmapophysis homology humerus inner inserted intestine Lancelet Lepidosiren ligament limbs lobes longitudinal lower jaw mastoid maxillary median membrane muscles muscular nasal nerves neural arch neural spine notochord occipital olfactory opercular orbitosphenoids organs Osseous Fishes ossified outer pair palatine parapophyses parietal pectoral pectoral fin pedicle Plagiostomes plates pleurapophyses Polypterus posterior premaxillary prosencephalon pterygoid rays Reptiles ribs scapula scutes segment Sharks short side skeleton skull slender species Sturgeon surface tail teeth terminal tooth transverse transverse process trunk tympanic upper vascular vein ventral ventricle vertebræ vertebral column vertical vomer
Popular passages
Page 650 - The Tale of the Great Persian War, from the Histories of Herodotus. By GEORGE W. Cox, MA late Scholar of Trin. Coll. Oxon. Fcp.