LIST OF WOODCUTS.
- Frontispiece. THE COMMON CRAYFISH, Astacus fluviatilis, (MALE)
- 1. Astacus fluviatilis. SIDE VIEW OF THE MALE • 6
- 2. — — DORSAL VIEWS OF MALE AND FEMALE • 18
- 3. — — VENTRAL VIEWS OF MALE AND FEMALE • 21
- 4. — — THE GILLS • 26
- 5. — — DISSECTION FROM THE DORSAL SIDE (male) • 28
- 6. — — LONGITUDINAL VERTICAL SECTION OF THE ALIMENTARY CANAL • 29
- 7. — — A GASTROLITH OR “crab’s EYE” • 30
- 8. — — ATTACHMENT OF YOUNG TO SWIMMERET OF MOTHER • 41
- 9. — — STRUCTURE OF THE STOMACH • 53
- 10. — — LONGITUDINAL SECTION OF THE STOMACH • 56
- 11. — — ROOF OF THE STOMACH, FROM WITHIN • 60
- 12. — — DISSECTION FROM THE SIDE (male) • 62
- 13. — — ALIMENTARY CANAL FROM ABOVE • 65
- 14. — — BLOOD CORPUSCLES • 68
- 15. — — TRANSVERSE SECTION OF THORAX • 70
- 16. — — THE HEART • 72
- 17. — — STRUCTURE OF THE GILLS • 76
- 18. — — THE GREEN GLAND • 83
- 19. — — MUSCULAR TISSUE • 91
- 20. — — MUSCLES OF CHELA • 93
- 21. — — ARTICULATION OF ABDOMINAL SOMITES • 97
- 22. — — MUSCULAR SYSTEM • 100
- 23. — — NERVE FIBRES • 102
- 24. — — NERVE GANGLIA • 103
- 25. — — NERVOUS SYSTEM • 104
- 26. — — OLFACTORY AND AUDITORY ORGANS • 114
- 27. — — AUDITORY SAC • 117
- 28. — — STRUCTURE OF EYE • 119
- 29. — — DIAGRAM OF EYE • 123
- 30. — — FEMALE REPRODUCTIVE ORGANS • 129
- 31. — — MALE REPRODUCTIVE ORGANS • 130
- 32. — — STRUCTURE OF OVARY • 131
- 33. — — STRUCTURE OF TESTIS • 132
- 34. — — SPERMATOZOA • 134
- 35. — — THE LAST THORACIC STERNUM IN THE MALE AND FEMALE • 136
- 36. — — TRANSVERSE SECTION OF ABDOMEN • 142
- 37. — — ABDOMINAL APPENDAGES • 144
- 38. — — CONNECTION BETWEEN THORAX AND ABDOMEN • 151
- 39. — — CEPHALOTHORACIC STERNA AND ENDOPHRAGMAL SYSTEM • 153
- 40. — — OPHTHALMIC AND ANTENNULARY SOMITES • 156
- 41. — — THE ROSTRUM • 157
- 42. — — A SEGMENT OF THE ENDOPHRAGMAL SYSTEM • 159
- 43. — — LONGITUDINAL SECTION OF CEPHALOTHORAX • 162
- 44. — — THE THIRD MAXILLIPEDE • 164
- 45. — — THE FIRST AND SECOND MAXILLIPEDES • 166
- 46. — — THE SECOND AMBULATORY LEG • 169
- 47. — — THE MANDIBLE AND MAXILLÆ • 171
- 48. — — THE EYE-STALK, ANTENNULE, AND ANTENNA • 172
- 49. — — BLOOD CORPUSCLES • 176
- 50. — — EPITHELIUM • 178
- 51. — — CONNECTIVE TISSUE • 179
- 52. — — MUSCULAR TISSUE • 181
- 53. — — MUSCULAR TISSUE • 182
- 54. — — NERVE GANGLIA • 188
- 55. — — NERVE FIBRES • 189
- 56. — — CUTICULAR TISSUE • 191
- 57. — — SECTIONS OF EMBRYOS • 208
- 58. — — EARLIER STAGES OF DEVELOPMENT • 210
- 59. — — LATER STAGES OF DEVELOPMENT • 216
- 60. — — NEWLY HATCHED YOUNG • 220
- 61. Astacus torrentium, Astacus nobilis, and Astacus nigrescens. COMPARATIVE VIEWS OF THE CARAPACE, THIRD ABDOMINAL SOMITE, AND TELSON • 233
- 62. — —, — —, and — — COMPARATIVE VIEWS OF THE FIRST AND SECOND ABDOMINAL APPENDAGES OF THE MALE • 245
- 63. Cambarus Clarkii • 248
- 64. Parastacus brasiliensis • 250
- 65. Astacoides madagascarensis • 251
- 66. DIAGRAM OF THE MORPHOLOGICAL RELATIONS OF THE Astacidæ • 253
- 67. Homarus vulgaris • 258
- 68. Parastacus, Nephrops, and Palæmon. PODOBRANCHIÆ • 259
- 69. Nephrops norvegicus • 260
- 70. Palinurus vulgaris • 262
- 71. Palæmon jamaicensis • 269
- 72. Cancer pagurus • 273
- 73. Penæus • 281
- 74. Cancer pagurus. DEVELOPMENT • 282
- 75. Astacus leptodactylis • 301
- 76. Australian Crayfish • 307
- 77. MAP OF THE DISTRIBUTION OF CRAYFISHES • 309
- 78. Cambarus. WALKING LEG • 312
- 79. Palæmon jamaicensis • 329
- 80. Pseudastacus pustulosus and Eryma modestiformis • 340
- 81. Hoploparia longimana • 342