178 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig, 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Part [11.—Twenty-first Annual Report 
113. First pereiopod (chela) (part of), first young stage, to show the . 
hairs on the upper or anterior surface of the appendage, 
114, Coxopodite and basi-ischiopodite joints of fifth pereiopod, first 
young stage. 
Puate XI, 
115. Hinge of dactylopodite of chela, first young stage. 
116. Third pereiopod (part of), first young stage, . 
117. First four abdominal joints, III. Zoéa ; Ee pleopod, 
118. Abdomen, I. Zoéa, 4 
119. Telson, II. Zoéa; an. anus, ; 
120. Long toothed spines of telson, I, Zoéa. 
121. ,Telson, III. Zoéa, 
122. Telson, I. Zoéa ; 5 ab. fifth abdominal segment, 
123. Coxopodite, and portion (b.) of basi-ischiopodite, proximal to 
fracture plane (/r.). 
124, First four abdominal ee II. Zoéa, 
125. Second abdominal somite, ventral view, II. Zoéa. 
126. Fifth pereiopod, first young stage, 
127a.Telson and fifth pair of pleopods, Megalops, ventral view, 
127b. Telson, Megalops, dorsal view, . 
128. Hair from dorsal surface, cas first TONNE stage, 
129. Abdomen, IV. Zoéa, 
130. Third pleopod, Megalops, . : 
131. First, second, and third abdominal segments 3 ol, pleopod, 
ventral view, . ‘ F ; : : 
132. Second pleopod, Megalops, : 
133. Carpopodite joint of chela, first young stage, 
134. Basal joint (protopodite) and endopodite of third pee 
Megalops, 
135. Long hair from ischiopodite of fourth pereiopod, first young 
stage. 
136. Hooks on ends of the two endopodites of the first pleopod, 
Megalops. 
137. Telson, IV. Zoéa ; 5 pl. fifth pair of pleopods, . 
138. Abdomen, Megalops, side view; the pleopods are not completed, 
139. Telson, I.Zoéa, ventral view, showing the circular aperture (op.) 
in the integument through which the end of the gut and 
anus projects, 
140. Coxopodite and portion ‘of basi- ischiopodite proximal to the 
fracture plane, of chela, first young stage, st. sternum, 
141. Fourth pleopod, Megalops, F 
142. First pleopod, Megalops, 
143. Abdomen, Megalops, dorsum, 
Puate XII. 
144. Third pleopod, Megalops, 
145. Abdomen, first young StAEES 
146. IV. Zoéa, . 
147. III. Zoéa, : - 
148. II. Zoéa, . 
149. Sternum, Megalops, 
150. Sternum (thorax), IV. Zoéa, : 
151. Abdomen, first young stage, external surface, : 
152. Megalops, : 
153. Carapace, Megalops, - 
154, Cephalic region, Megalops, ventral surface, 
155. Penes; 1 p. anterior penis; 2p. posterior penis, of a Carcinus’ 
muenas, measuring 5°5 mm. across the greatest breadth of 
the carapace. . é A 
156. Third pleopod, first young stage, 
157. Eye of IV. Zoéa, . 
158. Fifth pair of iy skin and telson, first young stage, 
159. I. Zoéa, 
160. Protozoéa, 
161. Cast integument, if Zoéa, side view, 0. cornea, 
x xX XX 
xX 
x 
x 
SSAC tot ON oN ters NN onto Nm x XX 
xxx XX XX 
57 
