LIST OF ILLUSTRATIONS. IX 



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FiQ. 114i.Squatina alifera, Mimster, sp. ; Lithographic Si one, Bavaria 87 

 115. Squat ina speciosa, Meyer j ibid. .. .. .. ..87 



116. Raja clavata (jaws of male and female) ; Recent . . . . 87 



117. PtycTiodus deciirrens, Ag. (arrangement of teeth) ; English 



Chalk 88 



118. Skull of Notidamis ; Eecent 88 



119. Notidamis gigas, Sism. (teeth); Ked Crag. Suffolk .. .. 89 

 120. Jaw of Port Jackson Shark, Cestracion Philippi ; Eecent .. 89 

 ,, 121. Lepracanthus Colei, Owen (spine) ; Coal-measures, Euabon 90 

 122. Acrodus Anningics, Ag. (teeth) ; L. Lias, Lyme Kegis . . 90 

 123. Hybodus (dorsal spine) ; Wealden, Sussex 90 



124. Jaw of AsteracantJius (StropJiodus medius, Owen) ; Great 



Oolite, Caen, Normandy . . . . . . . . 91 



125. Cochliodus contortus, Ag. (teeth) ; Carboniferous Limestone, 



Armagh 92 



,, 126. Odontaspis elegans, Ag. (tooth) ; London Clay .. .. 92 

 ,, 127. Carcharodonmegalodon, Ag. (tooth) ; Suffolk Crag.. .. 92 



128. Edaphodon lepiognathus, Ag. (lower jaw) ; M. Eocene, 



Bracklesham Bay 94 



129. African Mudfish, Protopterus annectens ; Kecent . . . . 94 

 130. Australian Mudfish, Ceratodus Forsteri ; Eecent . . . . 94 

 131. Mouth of Ceratodus Forsteri 95 



,, 132. Dipterus Valenciennesi, Sedgw. and Murch. (restoration) ; 



L. Old Eed Sandstone, Scotland 95 



133. Phaneropleuron Andersoni, Huxley (restoration) ; U. Old 



Eed Sandstone, Dura Den, Fife .96 



134. Coccosteus decipiens, Ag. (restoration) ; L. Old Eed Sand- 

 stone, Scotland 97 



135. Jaws of Dinichthys ; Devonian, N. America .. .. ..97 



136. Polypterus bichir ; Eecent .. .. .. .. ..98 



137. Holoptychius (restoration) ; U. Old Eed Sandstone, Scotland 98 



138. Glyptolcemus Kinnairdi, Huxley (restomtion) ; ibid. .. 98 



,, 139. Osteolepis macrolepidotus, Ag. (restoration) ; L. Old Eed 



Sandstone, Scotland 99 



140. Undina (HolopJiagus) gulo, Egert. (restoration) ; L. Lia, 



Lyme Eegis 99 



141. Elonichthys striatus, A g. sp. (scales) ; Carboniferous .. 100 

 I42.Palceoniscus macropomus, Ag. (restoration) ; Kupferschiefer, 



Germany . . . . . . . . . . . . t . , , 100 



,, 143. Eurynotus creaatus, Ag. (restoration) ; L. Carboniferous, 



Scotland . . . . . . . . . . . . tt . . 101 



l^.Platysomus striatus, Ag. (restoration) ; Magnesian Lime- 

 stone, Durham . . . . . . . . . . . . . . 101 



,, 145. Skeleton of Sturgeon, Acipenser ; Eecent . . . . . . 102 



