xviii LIST OF ILLUSTRATIONS. 



rieuBii „, , , , , • ''I'ca 



36. Pervplamta Americana : The head, front view . loo 



37. „ The head, from behind . . . • ■ 163 



38. ■ „ Dissection of a male from the right side . . . 168 

 39I " Dissection of the hinder part of the abdomen of a 



female . . 177 



40. AmpMoxus lanceolatus : A young specimen, seen from the 



right side 180 



il ^^ Transverse section through the anterior part of 



the pharynx 201 



42. „ Transverse section through the hinder part of 



the pharynx • 205 



43. ,, Transverse section passing through the atrial pore 207 



44. ,, Transverse section passing through the anus . 208 



45. ScylUwm canicula : The skull and viscei:al skeleton from the 



right side 218 



40. ,, The skull and visceral skeleton from the ventral 



surface ........ 224 



47. ^_ The pelvic girdle and fins from the ventral surface 229 



48. „ The pectoral girdle and fins from the ventral 



surface . . 231 



49. ,^ Longitudinal vertical section through the head 



and anterior part of the body .... 238 



50. „ The venous system 240 



51. Scyllium catulus : The arterial system 246 



52. Scyllium canicula: Transverse section passing through the 



posterior dorsal fin 251 



53-54. „ Dissections of the renal and reproductive systems 



of the female 257 



55-56. „ Dissection of the renal and reproductive systems 



of the male 260 



57. Scyllium catulus : Dissection of the brain and cranial nerves . 264 



58. Lepus cuniculv£ : Selected vertebrae ... . . 287 



59. „ The skull from the right side 295 



60. „ Skeleton of the left hand 318 



61. „ Skeleton of the left foot 318 



62. „ Dissection of a male from the left side . . 330 



63. „ Dissection of the neck 364 



64. ,, Diagrammatic transverse section through the 



head, showing the tympanic cavity and auditory 



ossicles 376 



65. „ Dissection of the brain from the right side . . 380 



66. „ Ventral surface of the brain .... 383 



67. „ Dissection of the brain from above . . . . 387 



68. „ Transverse section of the brain, passing through 



the third ventricle 390 



69. ,, Median section of the brain 892 



70. „ Transverse section of the brain, passing through 



the cerebellum 394 



71. Oallibs Apmesticus : The left half of the skeleton, from the right 



side 398 



72. „ The skull from the right side .... 405 



73. Columha livia : Dissection from the right side . . . . 436 



