Fig. 
153- 
154. 
155. 
156. 
157. 
158. 
159. 
160. 
161. 
162. 
163. 
164. 
165. 
166. 
167. 
168. 
169. 
170. 
171. 
172. 
173. 
174. 
175. 
176. 
177. 
178. 
179- 
180. 
181. 
182. 
183. 
184. 
185. 
186. 
187. 
188. 
189. 
Igo. 
191, 
192. 
193: 
19. 
4. Dorsal View om the somes 
LIST OF ILLUSTRATIONS. 
Page 
Peripatus 
the Dorsal 
A_ Dissection of 
Capensis from 
Surface .. 
A Common Garden Spider 
The Two First Pairs of Appen- 
dages of Epeira Diademata .. 234 
Longitudinal Sagittal Se 
through Epeira Diademata . 
Foot or Parapodium of a 
Nereis.. 
The Life- ‘History of Cirripedia 242 
Lateral View of  Lepas 
(Barnacle) 243 
Lateral View of ‘Lepas Anati- 
fera P «+ 243 
A Zcea Larva of a Decapod + 244 
Scolopendra Cingulata site 
Centipede 245 
Julus Terrestris (a Millipede) 245 
The Life-History of the Com- 
mon Cockchafer 247 
Colorado Beetles 247 
A Water-beetle .. 248 
The Hive Bee 249 
The Gall-fly 249 
Tsetse Fly ee 250 
Syrphus Pyrastri 250 
Wheat Midge . 251. 
The Daddy-Long- ‘legs or Crane: 
Fly abe 252 
The. Horse-Bot .. 252 
The Cabbage White... 253 
Demoiselle Dragon-Fly 254 
Larva of Dragon-Fly .. 255 
‘Uhe May-Fly.. Si 255 
The Grasshopper A 250 
A Group of Hemiptera 256 
The Common Louse 257 
The Rose Aphis 257 
Mite causing Mange in the 
Pig 259 
The Harvestman 
Lateral View of the Roman 
Snail .. 262 
First Dissection of Snail 264 
Diagrammatic Median Sagittal 
Section through. the head of 
a Snail .. .. 265 
Second Dissection of Snail |. 266 
The Nervous System of the 
Snail 267 
Lateral View (Left) of Ano- 
donta in Natural Position and 
Feeding 270 
Internal Siew of Right Shell 
of Anodonta 271 
View of Anodonta with Left 
Mantle-Flap thrown back 
Dissection of Anodonta from 
Left Side 273 
Dorsal View of Heart and 
Pericardium of Anodonta .. 274 
272 
Cuttle . 276 
Fig. 
195. 
196. 
199. 
201. 
* 202, 
205. 
. Transverse 
. Transverse 
xix 
Page 
Ventral View of a Cuttle 
Ventral View of — Sepia 
Officinalis with Mantle- 
Cavity cut open ne 
. Dissection of Organs of Sepia 
Officinalis from the Left Side 
. Ventral View of Shell of Cuttle 
Semi-diagrammatic View of 
Heart, Gills and Excretory 
Organs of Sepia Officinalis .. 
. A Belemnite Restored . 
Lateral View of a Nautilus in 
its Shell . 
2 
Ammonites or Fossil Nautiloid 
Cephalopoda 
. Diagrammatic Median ‘Longi- 
tudinal Section through an 
Ascidian 
. Oblique Section” through an 
Ascidian 
Development of an Ascidian . 
. Transverse Section of Larva of 
Ascidian as we we 
Section through 
Embryo of an Ascidian 
. Chordula Larva of an Ascidian 
. Development of an Ascidian 
. Tailed Larva of an Ascidian 
seen from the Right Side .. 
. Transverse Section through the 
Tail of an Ascidian Larva .. 
. Lateral View of Amphioxus 
Lanceolatus 
. View of ‘Amphioxus from the 
Right Side 
. Transverse Section of “Amphi- 
oxus behind the Atrium , 
Section through 
Amphioxus in the Pharyngeal 
Region .. 
. Median Section of Brain of 
Amphioxus.. 
. Oblique Section of Amphioxus 
through the Pharyngeal 
Region .. 
. The Ppevelogriené of “Amphi- 
oxus, as seen in Longitudinal 
Section and Lateral View of 
Larve 
ee 3 
. The Development of “Amphi- 
oxus, as seen in Sections .. 
. Transverse Sections through 
Young Amphioxus .. 
. Lateral View of Young Pelagic 
Amphioxus at Commencement 
- 277 
293 
294 
294 
301 
of Larval Life . 307 
222, Diagram of Young Pelagic 
Amphioxus % 307 
223. Lateral View of “Myxine 
Glutinosa 309 
224. Ventral Dissection of “Myxine 
Glutinosa Ir 
225. Median Sagittal “Section 
through Myxine Glutinosa .. 312 
