Outlines of Zoology and Comparative AnatomyFannin, 1874 - Всего страниц: 150 |
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Стр. 26
... 4. Diapophyses , upper transverse processes . 5. Centrum , or body . 6. Pleurapophyses , ribs . 7. Parapophyses , lower transverse processes . 8. Hæmapo- Cranial Vertebra . Divisions of Vertebrata . 27 physes , 26 Vertebrata .
... 4. Diapophyses , upper transverse processes . 5. Centrum , or body . 6. Pleurapophyses , ribs . 7. Parapophyses , lower transverse processes . 8. Hæmapo- Cranial Vertebra . Divisions of Vertebrata . 27 physes , 26 Vertebrata .
Стр. 28
... lower jaw consists of two halves , each composed of a single piece and united in front , there is no quadrate bone ; the vertebral column is , with few exceptions , divided into cervical , dorsal , lumbar , sacral and caudal regions ...
... lower jaw consists of two halves , each composed of a single piece and united in front , there is no quadrate bone ; the vertebral column is , with few exceptions , divided into cervical , dorsal , lumbar , sacral and caudal regions ...
Стр. 39
... lower jaw . a . Those having one tuber- cular tooth behind each canine of lower jaw . b . Those having two tuber- cular teeth behind each canine of upper jaw , 2. Those having no tuber- cular teeth behind each canine of lower jaw ...
... lower jaw . a . Those having one tuber- cular tooth behind each canine of lower jaw . b . Those having two tuber- cular teeth behind each canine of upper jaw , 2. Those having no tuber- cular teeth behind each canine of lower jaw ...
Стр. 43
... lower jaw are similar in size and form . In consequence of the absence of these teeth in the upper jaw , the lower incisors are opposed to a hardened pad of gum . The camelidæ , however , form an exception , as they possess six incisors ...
... lower jaw are similar in size and form . In consequence of the absence of these teeth in the upper jaw , the lower incisors are opposed to a hardened pad of gum . The camelidæ , however , form an exception , as they possess six incisors ...
Стр. 45
... lower jaw ; there are also a few in the upper , but they never cut the gum . These animals are sought after for the spermaceti which is diffused through the blubber , and contained in special cavities in the head , and for a peculiar ...
... lower jaw ; there are also a few in the upper , but they never cut the gum . These animals are sought after for the spermaceti which is diffused through the blubber , and contained in special cavities in the head , and for a peculiar ...
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abdomen absent alimentary canal Amphibia anal animals anus aperture aquatic auricle birds bladder blood body bones bony bony pike branchiæ branchial calcareous called canines Carnivora caudal cavity cells cervical vertebræ Cetacea chamber clavicle claws cloaca composed comprise contains coracoid covered developed Digitigrade distinct divided dorsal vertebræ eîdos eldos elongated endoskeleton external extremely feathers feet female fins fishes five toes four front ganglia ganglion gills gland hind limbs horny humerus incisors insects integument intestine larvæ legs lower jaw lungs Mammalia Mammals mandibles maxillæ membrane mollusca mouth muscles muscular nervous system nostrils organs pair pectoral peculiar pelvic arch pharynx placed plates possess present Professor Owen Quadrumana rays respiration ribs rudimentary Ruminants sacs scapula shell single Sirenia situated skin skull soft spine sternum stomach sub-kingdom tail teeth termed terminates transverse processes tubes upper jaw usually valve ventral ventricle vertebral column Vertebrata wings
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Стр. 17 - I believe that animals have descended from at most only four or five progenitors, and plants from an equal or lesser number. Analogy would lead me one step further, namely, to the belief that all animals and plants have descended from some one prototype. But analogy may be a deceitful guide. Nevertheless all living things have much in common, in their chemical composition, their germinal vesicles, their cellular structure, and their laws of growth and reproduction. We see this even in so trifling...
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Стр. 18 - Therefore I should infer from analogy that probably all the organic beings which have ever lived on this earth have descended from some one primordial form into which life was first breathed by the Creator.
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Стр. 17 - Analogy would lead me one step farther, namely, to the belief that all animals and plants are descended from some one prototype. But analogy may be a deceitful guide. Nevertheless all living things have much in common, in their chemical composition, their cellular structure, their laws of growth, and their liability to injurious influences.
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