VI CONTENTS. 



Chapter III. Osteology of the Ceratopsia — Continued. Pa.ge. 

 The skull— Continued. 



The lower jaw 39 



The predentary 39 



The dentary 40 



The splenials 41 



The angular 41 



The surangular 42 



The articular : 42 



The teeth 43 



The unworn teeth 43 



Arrangement of teeth in the jaw 43 



Replacement of the teeth 44 



Functions of the teeth 46 



The vertebral column 46 



The vertebral formula 46 



The anterior cervicals 47 



The fifth, sixth, and seventh cervicals 49 



The dorsal vertebra 49 



The first dorsal 50 



The second dorsal 50 



The third dorsal .- 50 



Dorsals 4 to 14 51 



The sacrum 51 



The caudal vertebra? '. 53 



Ossified dorsal tendon? 55 



The pelvis 56 



The ilium - 56 



The pubis 57 



The ischium - 58 



The shoulder girdle - 58 



The scapula 58 



, The corocoid 58 



The ribs '-- 58 



The cervical ribs ■ 58 



The dorsal ribs - 59 



The caudal ribs 59 



The fore limb and foot 59 



The humerus - 60 



The ulna 60 



The radius 60 



The carpus 61 



The metacarpus ■ 61 



The phalanges 61 



The hind limb and foot - - - 61 



The femur T - - • 61 



The tibia 62 



The fibula 63 



The tarsus - : 63 



The metatarsus 63 



The phalanges 64 



The exoskeleton 64 



Chapter IV. Systematic descriptions of genera and species 66 



Method of treatment 66 



Revision of species of Judith River Ceratopsia ■ 67 



Genera and species described by Professor Cope 67 



Dysganus 67 



D. encaustus _ 67 



D. haydenianus 68 



D . bicarinatus 68 



D. peiganus 69 



Monoclonius - 70 



M. crassus 71 



Original description ' 1 



Literature 71 



