LIST OF WOODCUTS. 



XIU 



Fig. 45. Astacus Jluviatilis. 



62. 



63. 

 64. 



65. 

 6Q. 



67. 



68. 



AN 



The first and second maxilli 



PEDES 



The second ambulatory leg . 

 The mandible and maxilla 

 The eye-stalk, antennule, 



ANTENNA . 



Blood corpuscles 

 Epithelium 

 Connective tissue 

 Muscular tissue . 

 Muscular tissue 

 Nerve ganglia 

 Nerve fibres 

 Cuticular tissue . 

 Sections of embryos . 

 Earlier stages of development 

 Later stages of development 

 Newly hatched young 

 Comparative views of the cara 

 pace, third abdominal somite, 



AND TELSON 



Comparative views of the first 

 and second abdominal appen 



DAGES OF THE MALE 



\_ nigrescens. } 

 Camharics Clarkii . 

 Par astacus hrasiliensis . 

 Astacoides madagascarensis 

 Diagram of the morphological relations of the 



Astacidce 

 How.arv^ vulgaris . • 



iParastacu^. \ 

 Nephrops. I Podobran ch liB 

 Faliemon. } 



166 

 169 

 171 



172 



176 

 178 

 179 

 181 

 182 

 188 

 189 

 191 

 208 

 210 

 216 

 220 



233 



245 

 248 

 250 

 251 



253 

 258 



259 



