_Fig._ 108. Velutina lævigata, portion of lingual membrane--109. Velutina lævigata, part of mandible--110. Hybocystis blennius, portion of palate--111. Sepia officinalis, portion of palate--112. Aplysia hybrida, part of mandible--113. Loligo vulgaris, part of palate--114. Haliotis tuberculatus, part of palate--115. Cistula catenata, part of palate--116. Patella radiata, part of palate--117. Acmæa virginea, part of palate--118. Cymba olla, part of palate--119. Scapander ligniarius--120. Oneidoris bilamellata, part of palate--121. Testacella Maugei, part of palate--122. Pleurobranchus plumula, part of mandible--123. Turbo marmoratus, part of palate.
Lingual membranes of Mollusca; drawings made from specimens in the collection formed by F. E. Edwards, Esq., now in the British Museum. Typical examples of the numerous forms of Odontophors met with in Gasteropod and Cephalopod Mollusca.
_Fig._ 124. Egg of Caradrina morpheus, mottled rustic moth--125. Egg of tortoise-shell butterfly, Vanessa urticæ--126. Egg of common footman, Lithosia complanula--127. Egg of shark moth, Cucullia umbratica--128. Maple-aphis--129. Egg shell of acarus, empty--130. Egg of house-fly--131. Mouth of Tsetse-fly, Glossina morsitans--132. Vapourer moth, Orgyia antiqua: antenna of male--133. Vapourer moth: antenna of female; _a_. branch more magnified to show rudimentary condition of the parts--134. Tortoise-shell butterfly; head in profile, showing large compound eye, one of the palpi, and spiral tongue--135. Tortoise-beetle, Cassida viridis; under surface of left fore-foot, to show the bifurcate tenent appendages, one of which is given at _a_ more magnified. This form of appendage is characteristic of the family. “West on Feet of Insects,” Linn. Trans. vol. xxiii. tab. 43-136. Egg of blue argus butterfly, Polyommatus argus--137. Egg of mottled umber, Erannis defoliaria--138. Egg of Ennomos erosaria, thorn-moth--139. Egg of Aspilates gilvaria, straw-belle--140. Blow-fly, Musca vomitoria: left fore-loot, under-surface, to show tenent hairs; _a_ _b_ more magnified; _a_ from below, _b_ from the side--141. House-fly larva--142. Amara communis: left fore-foot, under-surface, to show form of tenent appendages, of which one is given more magnified at _a_. These, in ground beetles, are met with only in the males, believed to be used for sexual purposes. These appendages are carefully protected when not in use, as explained by West--143. Ephydra riparia: left fore-foot, under-surface. This fly is met with sometimes in immense numbers on the water in salt-marshes; it has no power of climbing on glass, as seen by the structure of the tenent hairs; the central tactile organ also is peculiar, the whole acting as a float, one attached to each foot, enabling the fly to rest on the surface of the water; _a._ an enlarged external hair--144. Egg of bot-fly, the larva just escaping--145. Egg of parasite of pheasant--146. Egg of Scatophaga--147. Egg of parasite of magpie--148. Egg of Jodis vernaria, small emerald moth.