Vlll LIST OF ILLUSTRATIONS. 



Page 



FIG. 82. Empedias molar is, Cope (tooth) ; ibid. . . . . . . 61 



,, 83. Deuterosaurus biarmicus, Eichwald (tooth) ; Permian, Eussia 61 



,, 84. Pariasaurus Baini, Seeley (skeleton) ; Karoo System, Cape 



Colony .. .. .. ..62 



,, 85. MegalobatracTius (Cryptobrancftvs) ScJieucTizeri, Holl; U. 



Miocene, QEningen, Switzerland . . . . . . 65 



86. Mastodonsaurus giganteus, Jaeger (skull) ; Lettenkohle, 



Wiirtemberg . . . . . . . . . . . . . . 66- 



87. Mastodonsaurus giganteus, Jaeger (palate) ; ibid. . . . . 66 



,, 88. Capitosaurus robustus, Meyer (skull) ; U. Trias, Wiirtemberg 67 



89. Metoposaiirus diagnostics, Meyer (skull) ; ibid 67 



90. Loxomma Allmani, Huxley (skull) ; Carboniferous, North- 

 umberland . . . . . . . . . . . . 68 



,, 91. Bothriceps Huxleyi, Lydekker (skull) ; Karoo System, South 



Africa 69- 



,, 92. Actinodon latirostris, Jordan, sp. (skull) ; L. Permian, Saar- 



bruck .. 70 



,, 93. Archegosaurus Decheni, Groldfuss (skull) ; ibid. .. .. 71 



,, 94. Euchirosaurus Rochei, Gaudry (vertebra) ; L. Permian, 



France . . . . . . . . . . . . . . 71 



,, 95. Cheirosaurus Barthi, Kaup, sp. (footprints) ; Bunter Sand- 

 stone, Hessberg, G-erniany . . . . . . . . 73 



,, 96. " Lancelet," BrancMostoma (Ampldoxus) lanceolatum ; 



Recent . . . . . . . . , . . . . . 74 



,, 97. " Hag-fish,' ' Myxine australis\ Recent .. .. ..74- 



,, 98. Mouth of Lamprey, Petromyzonfluviatilis; Recent.. .. 74 



,, 99. Palce.ospondylus Gunni, Traquair (restored skeleton) ; L. Old 



Red Sandstone, Scotland 75 



,, 100. " Conodonts " from the Cambrian . . . . . . 75 



,, 101. Pteraspis rostrata, Ag. (restoration) ; L. Old Red Sandstone, 



Herefordshire . . . . . . . . . . . . 76 



,, 102. Pteraspis rostrata (head shield) ; ibid. , 77 



,, 103. Cephalaspis Murchisoni, Egerton (restoration) ; ibid. . . 77 



,, 104. Pterichthys testudinaritts, Ag. (restoration) ; L. Old Red 



Sandstone, Scotland . . . . . . . . . . 78 



105. Diphycercal tail . . . 79 



106. Heterocercal tail 79 



107. Homocercal tail 79- 



108. Dermal tubercles of Elasmobranch Fishes 81 



,, 109. Port Jackson Shark, Cestracion Philippi, Lacep., from 



Australia . . . . . . . . . . . . . . 82 



,, 110. The Ray, Raja Murrayi, Giinther, from Kergeulen's Island 82 



,, 111. Spines of Elasmobranch and Chimseroid Fishes .. .. 8& 



112. Pleuracanihus Gaudryi, "Brongn. (restoration) ; Coal- 

 measures, Comtnentry, France . . . . . . . . 84 



,, 113. Acanthodes Wardi, Egerton (restoration) ; Coal-measures, 



Staffordshire 85 



