LIST OF WOODCUTS. 
Fic. 45. Astacus fawiatilis, TH FIRST AND SECOND MAXILLI- 
46. 
47. 
48. 
49. 
50. 
51. 
52. 
53. 
54, 
55. 
56. 
57. 
58. 
59. 
60. 
61. 
PEDES ‘ : 
THE SECOND AMBULATORY LEG . 
THE MANDIBLE AND MAXILLE 
35 ‘s THE EYE-STALK, ANTENNULE, AND 
ANTENNA . 
BLooD COoRPUSCLES , % 
EPITHELIUM 
CONNECTIVE TISSUE 
39 55 MUscULAR TISSUE 
sy MUSCULAR TISSUE 
NERVE GANGLIA 
NERVE FIBRES 
CUTICULAR TISSUE 
SECTIONS OF EMBRYOS . 
3 NEWLY HATCHED YOUNG 
EARLIER STAGES OF DEVELOPMENT 
LATER STAGES OF DEVELOPMENT 
torrentiwm. \ COMPARATIVE VIEWS OF THE CARA- 
94 nobilis. PACE, THIRD ABDOMINAL SOMITE, 
nigrescens. AND TELSON 
torrentiwm. | COMPARATIVE VIEWS OF THE FIRST 
14 nobilis, AND SECOND ABDOMINAL APPEN- 
nigrescens, DAGES OF THE MALE 
. Cambarus Clarkit . é 7 7 : 3 3 
. Parastacus brasiliensis . F : 
. Astacoides madagascarensis 
. DIAGRAM OF THE MORPHOLOGICAL RELATIONS OF 
Astacide . . 
. Homarus vulgaris. . < : A 
Parastacus. 
Nephrops. PoDOBRANCHIZ . ‘ : . 
Palemon. 
THE 
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