On the Classification and Geographical Distribution of the M̲a̲m̲m̲a̲l̲i̲a̲: Being a Lecture on Sir Robert Reade's Foundation, Delivered Before the University of Cambridge ... May 10, 1859. To which is Added an Appendix "On the Gorilla," and "On the Extinction and Transmutation of Species."J. W. Parker and son, 1859 - 103페이지 |
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14 페이지
... teeth ; the true ant- eaters ( Myrmecophaga ) , the scaly anteaters or ... true Dolphins ( Delphinus ) , which have from one hundred to one hundred and ... molars ; large conical pointed teeth situated behind the in- cisors , and ...
... teeth ; the true ant- eaters ( Myrmecophaga ) , the scaly anteaters or ... true Dolphins ( Delphinus ) , which have from one hundred to one hundred and ... molars ; large conical pointed teeth situated behind the in- cisors , and ...
15 페이지
... molars and premolars : perpetually growing teeth require the base to be kept ... True teeth implanted in sockets are confined , in the Mam- malian class , to ... teeth . In some species the tooth - matrix does not develope the germ 15.
... molars and premolars : perpetually growing teeth require the base to be kept ... True teeth implanted in sockets are confined , in the Mam- malian class , to ... teeth . In some species the tooth - matrix does not develope the germ 15.
16 페이지
... true molar ' is restricted to these teeth ( fig . 2 and 3 , m ) . The teeth ... molars . Thus the class Mammalia , in regard to the times of form- ation and ... tooth . single set of teeth , and the Diphyodonts ' or 16.
... true molar ' is restricted to these teeth ( fig . 2 and 3 , m ) . The teeth ... molars . Thus the class Mammalia , in regard to the times of form- ation and ... tooth . single set of teeth , and the Diphyodonts ' or 16.
18 페이지
... incisors , 1 canine , and 7 succeeding teeth , on each side of both jaws , as the type formula of diphyodont dentition . Three of the seven teeth may be ' premolars ' ( fig . 2 , p . 1-3 ) , and four may be true molars ' ( ib . m . 1-4 ) ...
... incisors , 1 canine , and 7 succeeding teeth , on each side of both jaws , as the type formula of diphyodont dentition . Three of the seven teeth may be ' premolars ' ( fig . 2 , p . 1-3 ) , and four may be true molars ' ( ib . m . 1-4 ) ...
19 페이지
... true molars : if , as in Sus , fig . 3 , the anterior four of the ' primary ' teeth develope tooth - germs , which grow in a secondary groove , there are then 4 deciduous teeth , 4 premolars , and 3 true mo- lars . The first true molar ...
... true molars : if , as in Sus , fig . 3 , the anterior four of the ' primary ' teeth develope tooth - germs , which grow in a secondary groove , there are then 4 deciduous teeth , 4 premolars , and 3 true mo- lars . The first true molar ...
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affinity Africa animal anthropoid apes Aristotle Artiodactyles bony brain Bruta called canines Carnivora cerebral Cetacea chimpanzee class Mammalia clavicles compared cranial cranium Cuvier deciduous dentition digits distinct division Dryopithecus edentulous elephant existence extinct foot fore fossil Front teeth Gaboon genera genus gibbons gorilla hair hallux hind Hippopotamus Homo hoofed human species humerus Hylobates incisors Insectivora length less Linnæus LISSENCEPHALA lobes lower jaw lumbar LYENCEPHALA male mammæ Mammalia Mammalian class Mammals marsupial Marsupialia maxillary miocene modifications molars monkeys muscles natural naturalists nearer negro occipital Old World orangs and chimpanzees organs osteological panzee peculiar pelvis Perissodactyles Pithecus placenta plantigrade premaxillary premolars present proportion Quadrumana quadrupeds races regard relative ribs ridge Rodentia Ruminants shew siamang Simia skeleton skull Sloths smaller strata structure subclass tailless tertiary thumb tion toes tooth tree Troglodytes Troglodytes gorilla true molars trunk unguiculate Ungulata Ungulates upper vertebræ young zoological Zootoka