Outlines of Zoology and Comparative AnatomyFannin, 1874 - Всего страниц: 150 |
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Стр. 48
... is unable to suck . The oviducts open into vaginal tubes , which , in turn , open into a urino - genital canal , but there is no " cloaca . " The scrotum is placed in front 48 Vertebrata . 99 99 99 Edentata, Marsupialia,
... is unable to suck . The oviducts open into vaginal tubes , which , in turn , open into a urino - genital canal , but there is no " cloaca . " The scrotum is placed in front 48 Vertebrata . 99 99 99 Edentata, Marsupialia,
Стр. 53
... tubes mark the distinction between the large and small intestines . The cloaca is the common receptacle , in birds and reptiles , for the termination of the intestine , and for the ducts of the urinary and generative organs . The liver ...
... tubes mark the distinction between the large and small intestines . The cloaca is the common receptacle , in birds and reptiles , for the termination of the intestine , and for the ducts of the urinary and generative organs . The liver ...
Стр. 54
... tubes ; this latter , when it exists , is the true seat of vocalization . The trachea , in many birds , especially among the grallatores , dilates into wide chambers of various forms , the object of which is unknown , and in the wild ...
... tubes ; this latter , when it exists , is the true seat of vocalization . The trachea , in many birds , especially among the grallatores , dilates into wide chambers of various forms , the object of which is unknown , and in the wild ...
Стр. 56
... tube - nevertheless , it is divided by a lamina spiralis into a scala vestibuli and scala tympani . Sight . The eye of a bird , when contrasted , on the one hand , with that of Mammals , and , on the other , with that of fishes ...
... tube - nevertheless , it is divided by a lamina spiralis into a scala vestibuli and scala tympani . Sight . The eye of a bird , when contrasted , on the one hand , with that of Mammals , and , on the other , with that of fishes ...
Стр. 59
... tube imbedded in the skin , from the interior of which springs a small tuft of filaments without any shaft ; these filaments are very slender , and have on either side a series of still more minute filaments . An unctuous secretion ...
... tube imbedded in the skin , from the interior of which springs a small tuft of filaments without any shaft ; these filaments are very slender , and have on either side a series of still more minute filaments . An unctuous secretion ...
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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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Стр. 61 - In the hind limb of most birds there is a singular extensor muscle, which arises from the pubis, ends in a tendon which passes to the outer side of the knee-joint, and terminates in the leg by uniting with the flexor digitorum perforatus. The result of this arrangement is, that the toes are flexed whenever the leg is bent upon the thigh, and, consequently, the roosting bird is held fast upon his perch by the weight of his own body.