LIST OF ILLUSTRATIONS. Vll 



Page 



Fig. 69. — Profile of skull and lower jaw of Samoiherium Boissi'eri 



( Forsyth- Major), Pliocene, Samos .. .. .. ..57 



„ 70. — Ovibos moschatus (Zinim.), recent, North Grinnell-Land ». 59 



„ 71. — Skull of Bos taurusf var. primigenitls (Boj.) s Pleistocene, 



Atkol 60 



„ 72. — Lower right molars of Halitheriumfossile (Blainville), Middle 



Miocene, Angers . . . . . . . . . . 61 



,, 73. — Skeleton of living " Manatee " ; River Amazon . . . . 62 



,, 74 — Skeleton of Bhytina gigas (Zimm.), Pleistocene) Behi'ing Island 63 



,, 75. — Molar tooth and caudal vertebra of Zeuglodon cetoides (Owen), 



Middle Eocene, Alabama . . . , . . . . . . 64 



,, 76. — Profile of cranium, and upper molar of Zeuglodon cetoides 



(Owen), M. Eocene, Alabama. . .. .. .. ..65 



,, 77. — Skidl of Squalodoit Grateloupi (Pedroni), Middle Miocene) 



Barie, France . . . . . . . . . . . . 65 



„ 78.— Lower molars of Squalodon (Miocene), Europe .. .. 65 



„ 79. — Right tvnipanic of Balcenu pi'imigenia (Van Beneden), Red 



Crag,' Suffolk 66 



„ 80. — Portion of Cranium of Choneziphius plauirostris (CuVi), 



Pliocene, Antwerp Crag . . .. .. .. ..66 



,, 81. — Left periotic bone of Jli-mplodon longirostris (Cuv,), Red 



Crag, Sutfolk 67 



,, 82.— --Lower jaw of Megatherium americanum (Cuv,), Pleistocene, 



Buenos Ayres . . . . . . . . . . . . 68 



,, 83. — Skull of Brad ii pi", gtilaris (recent), South America .. .. 69 



,, 84. — Restoration of .Skeleton of Scelidolheriam, Pleistocene, South 



America (after Capellini) .. .. .. .. ..70 



„ 85. — Restoration of Glgplodon clavipes (Owen), Pleistocene, South 



America.. .. .. .. .. .. .. ..71 



s , 86.— Skull of Armadillo, recent 72 



„ 87. — Tail-sheath of Hoplopjhoru.s^ Pleistocene, South America . . 73 



„ 88. — Skull of Orycteropus capensis (G-m.), Africa .. .. ..74 



„ 89. — Posterior view of lower jaw of Phascvlomys , . . . 75 



: , 90. — Dentition of Eypsi.prym.nus (recent) .. .. .. ..75 



» 91. — Front view of skull of Dasyurus ursinus (Harr.), recent . . 76 



» 92. — ,, „ Phascolarctos cineVeus (Groldf.) .. 76 



. '.<■■',.— Teeth of the Opossum Didelphys 77 



„ 94. — Didelphys fug ax (Cope), Miocene, Colorado .. .. ..77 



„ 95. — JJromatherium sylvestre (Emmons), Trias, N. Carolina .. 77 



„ 96. — Lower jaw of Ampthilestes Broderipi (Owen), Great Oolite, 



Stonesfield . . . . . . . . . . . . 78 



,, 97. — Lower jaw of Phaseot other ium Bucklandi (Brod. sp.) .. 78 



,) 98-.-^Lo"(-r jaw of Triconodon mordax (Owen), Middle Purbeck, 



.Dorset 78 



