On the classification and geographical distribution of the Mammalia. ... To which is added an appendix “on the Gorilla” and “on the extinction and transmutation of Species.”John W. Parker and Son, 1859 - 103페이지 |
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12 페이지
... surfaces are generally flattened , but sometimes , as in the necks of certain Ruminants , they are concave behind and convex in front . The cervical vertebræ are seven in number , neither more nor less . The lumbar vertebræ are more ...
... surfaces are generally flattened , but sometimes , as in the necks of certain Ruminants , they are concave behind and convex in front . The cervical vertebræ are seven in number , neither more nor less . The lumbar vertebræ are more ...
13 페이지
... surface for the mandible , which surface is either concave or flat . The presphenoid is developed from a centre distinct from that of the basisphenoid . 3 . In no other class of vertebrate animals are these osteo- logical characters ...
... surface for the mandible , which surface is either concave or flat . The presphenoid is developed from a centre distinct from that of the basisphenoid . 3 . In no other class of vertebrate animals are these osteo- logical characters ...
15 페이지
... surfaces , and by the firm adhesion of the alveolar periosteum to the organized cement which invests the fang or fangs of the tooth . True teeth implanted in sockets are confined , in the Mam- malian class , to the maxillary ...
... surfaces , and by the firm adhesion of the alveolar periosteum to the organized cement which invests the fang or fangs of the tooth . True teeth implanted in sockets are confined , in the Mam- malian class , to the maxillary ...
24 페이지
... surface is generally smooth ; the anfractuosi- ties , when present , are few and simple . Fig . 5 . Fig . 4 . A 2 B C Brain of Opossum . a A Brain of Beaver . The next well marked stage in the development of the brain is where the ...
... surface is generally smooth ; the anfractuosi- ties , when present , are few and simple . Fig . 5 . Fig . 4 . A 2 B C Brain of Opossum . a A Brain of Beaver . The next well marked stage in the development of the brain is where the ...
41 페이지
... same terminal series of eight teeth , between which and the molar series there is a wide interval . The true molars have their grinding surface marked by two double crescents , the con- vexity of which is turned inwards in the upper and 41.
... same terminal series of eight teeth , between which and the molar series there is a wide interval . The true molars have their grinding surface marked by two double crescents , the con- vexity of which is turned inwards in the upper and 41.
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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