XV111 



ILLUSTRATIONS, 



DIAGEAM PAGE 



CXXXIII. Coracoids and Paddle-Bones of Ichthyosaurus .. .. .. 340 



CXXXIV. Upper Jaw of Pleiosaurus brachydeirus . . . . . . . . 342 



CXXXV. Lower Jaw of Pleiosaurus brachydeirus .. .. .. .. 343 



CXXXVI. Teeth of Pleiosaurus brachydeirus 344 



CXXXVII. Cervical Vertebra of Pleiosaurus brachydeirus (three views) . . 345 



CXXXVIII. Posterior Cervical (two views) .. ,. 345 



CXXXIX. Dorsal Vertebra of Pleiosaurus brachydeirus (three views) . . 346 



CXL. Lumbar Vertebra of Pleiosaurus brachydeirus (two views) .. _ 347 



CXLI. Caudal Vertebra of Pleiosaurus brachydeirus (three views) . . 347 



CXLII. Coracoids of Pleiosaurus . . . . . . . . . . . . 348 



CXLIII. Pelvic Bones of Pleiosaurus 349 



CXLIV. Pelvic Bones of Pleiosaurus 350 



CXLV. Ischium of Pleiosaurus v." 35 1 



CXL VI. Paddle Bones of Pleiosaurus brachydeirus 352 



CXLVII. Phalangal Bones of Pleiosaurus brachydeirus .. .. .. 353 



CXL VIII. Anterior Cervical of Pleiosaurus macromerus (two views) . . 354 



CXLIX. Posterior Cervical of Pleiosaurus macromerus (two views) . . 355 



CL. Dorsal Vertebra of Pleiosaurus macromerus (two views) . . 356 



CLI. Caudal Vertebra of Pleiosaurus macromerus (two views) .. 356 



CLIL. Cervical Vertebra of Pleiosaurus gamma (four views) .. .. 358 



CLIII. Dorsal Vertebra of Pleiosaurus gamma (three views) .. .. 359 



CLIV. Lumbar Vertebra of Pleiosaurus gamma (two views) .. .. 359 



CLV. Caudal Vertebra of Pleiosaurus gamma (two views) . . . . 360 



CLVI. Cervical Vertebra of Pleiosaurus nitidus (three views) . . . . 360 



CLVII. Dorsal Vertebra of Pleiosaurus nitidus .. .. ..361 



CLVIII. Caudal Vertebra of Pleiosaurus nitidus (two views) .. .. 361 



CLIX. Femur of Pleiosaurus macromerus .. .. 362 



CLX. Humerus of Pleiosaurus brachydeirus . . . . 363 



CLXI. Femur of Pleiosaurus grandis .. .. , .. .. 363 



CLXII. Humerus of Pleiosaurus trochanterius . . . . . . . . 364 



CLXIII. Humerus of Pleiosaurus trochanterius .. .. .. 365 



CLXIV. Femur of Pleiosaurus sequalis .. .. 365 



CLXV. Femur of Pleiosaurus simplex .-3^6 



