LIST OF ILLUSTRATIONS 



FlO. I'AGE 



191. Outline drawing of Lasanius . . • .262 



192. Photograph of the jaws of a large recent Shark 



{Carcharodonrondeletii) ..... 264 



192a. Photograph of the natural size of a tooth of the 



great Shark, Carcharodon megalodon . . 265 



193. Ammonites (Aegoceras) capricornus . . . 267 

 193a. Shell of the Pearly Nautilus . . . .267 



194. Divided shell of the Pearly Nautilus . . .268 



195. The shell of Ancyloceras matheronianum . . 269 



196. Belemnites hastatus, from the Oxford Clay (Jurassic) 270 



197. Restored drawing of the animal in which the 



" Belemnite " is formed ..... 271 



198. Loligo mediay a cuttle-fish or squid now living in 



British seas . . . . . . .272 



199. Lingula {Lingulella) davisii, of the natural size, 



embedded in the slaty rock of Port Madoc, North 

 Wales ........ 273 



200. One of the most ancient Trilobites known {Cono- 



coryphe lyelli) ...... 273 



201. Drawing of Triarthrua becki .... 275 



202. The Desert Scorpion {Buthus australis) . . 276 



203. Drawing of the remains of a Scorpion {Palceophonus 



hunteri) ....... 277 



204. Completed drawing of the Scotch Silurian Scorpion 



{Palceophonus hunteri) . . . . .278 



205. Completed drawing of the Silurian Scorpion of 



Gothland {Palceophonus nuncius) . . .278 



xxii 



