« 



of the Fishery Board for Scotland. 



177 



Fig. 67. First, second, and third maxillipedes, the pleura {ap. ) and 



basal joints of pereiopods and branchiae (6r.), IV. Zoea, . x 120 

 Fig. 68. Second maxillipede, I. Zoea, . . . . . x 120 



Fig. 69. Third maxillipede, 1-4 pereiopods, and branchiae, I. Zoea, . x 220 

 Fig. 70. Endopodite, second maxillipede. III. Zoea. 



Fig. 71. Second maxillipede, flrst young stage (a. teeth on exopodite), . x 120 

 Fig. 72. Spine of first joint of endopodite, third maxillipede, Megalops. 



Fig. 73. Pereiopods, II. Zoea, x220 



Fig. 74. Third maxillipede, and pereiopods, III. Zoea, with branchiae, . x 120 



Fig. 75. Spine of endopodite, second maxillipede, first young stage. 



Fig. 76. Second maxilla, maxillipedes, and pereiopods, I. Zoea, side view, x 220 



Fig. 77. Terminal spine of endopodite, third maxillipede, Megalops. 



Fig. 78. Terminal joints of endopodite, first maxillipede, I. Zoea. 



Fig. 79. Second and third pereiopods, IV. Zoea; ap. pleuron; ^A. thorax. 



Fig. 80. Pleura, and coxopodites of pereiopods ; Megalops, 1-5, coxo- 



podites; l'-5', apodemes. 

 Fig. 81. 2nd-5th joints of endopodite, third maxillipede. Megalops. 

 Fig. 82. Pereiopods, IV. Zoea, external view, . . . . x 60 



Fig. 83. Endopodite of second maxillipede, I. Zoea, . . . x 220 



Fig. 84. Third maxillipede, pereiopods, and branchiae, II. Zoea, . . x 120 



Fig. 85. Ventral view of thorax, rudimentary third maxillipede, and 



pereiopods, I. Zoea, . . . . . , x 220 



Fig. 86. Third- maxillipede, Megalops, . . . . . x 120 



Fig, 87. Spine of endopodite, second maxillipede, Megalops, first young 



stage. 



Plate X. 



Fig. 88. Third maxillipede, first young stage, . . . . x 48 



Fig. 89. Fourth' pereiopod (part of *), Megalops, . . . ' x 57 



Fig. 90. Fifth pereiopod, Megalops, . . . . . x 57 



Fig. 91. Distal end of propodite of third pereiopod, Megalops. 

 Fig. 92. Distal toothed spine on dactylopodite of fourth pereiopod, 

 Megalops. 



Fig. 93. Third pereiopod (part of), Megalops, . . . , x 57 



Fig. 94. Distal toothed spine of third pereiopod, Megalops ; t. tubes. 

 Fig. 95. Second pereiopod (part of), Megalops, . . . . x 57 



Fig. 96. Large teeth on long curved terminal spine on dactylopodite of 



the fifth pereiopod, Megalops. 

 Fig. 97. Protopodite, and first joint of endopodite of third maxillipede, 



Megalops. 



Fig. 98. Endopodite aud exopodite of third maxillipede, first young 



stage. Shows surface next the second maxillipede. 

 Fig. 99. Dactylopodite of fourth pereiopod, Megalops. 



Fig. 100. First pereiopod (chela), first young stage, right side, . . x 57 



Fig, 101. Coxopodite {cox.) and basi-ischiopodite (b-isch.) of fifth 



pereiopod, Megalops ; fr. fracture plane on basi-ischiopodite 



joint. 



Fig. 102. Long curved spines on end of dactylopodite, fifth pereiopod, 

 Megalops. 



Fig. 103. Endopodite and exopodite of third maxillipede, first young 



stage. Shows external (ventral) surface ; cp. fig. 98. 

 Fig. 104. Dactylopodite of third pereiopod, first young stage. Shows 



the surface hairs on under side, which are omitted from 



the dactylopodite in fig. 116. 

 Fig. 105. Fifth pereiopod (part of), Megalops, . . . . x 57 



Fig. 106. First pereiopod (chela) (part of), Megalops ; isch. portion of 



basi-ischiopodite joint distal to fracture plane. 

 Fig. 107. Hair from meropodite of fourth pereiopod, first young stage. 

 Fig. 108. Fourth pereiopod (part of), first young stage, . . . x 57 



Fig. 109. Jaws of chela, Megalops. 



Fig. 110. Fifth pereiopod (part of), first young stage, , . . . x 57 



Fig. 111. Second pereiopod (part of), first young stage, . . . x 57 



Fig. 112. Dactylopodite of second pereiopod, first young stage, to show 



the surface hairs on the lower side of the joint, omitted 



from that part in fig. 111. 



* The drawings of the pereiopods in nearly every case show only the part of the 

 appendage distal to the fracture plane {fr.), viz., that part of the limb which may be 

 thrown off by the crab. 



