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.
[PLATE VI.—Page 582].
INSECTA.
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.
[PLATE VII.—Page 633].
VERTEBRATA.
Fig. 149. Toe of mouse, integuments, bone of foot, and vessels—150. Tongue of mouse, showing erectile papillæ and muscular layer—151. Brain of rat, showing vascular supply—152. Vertical section of tongue of cat, fungi-form papillæ and capillary loops passing into them, vessels—153. Kidney of cat, showing Malpighian turfts and arteries—154. Small intestine of rat, with villi and layer of mucous membrane exposed—155. Nose of mouse, showing vascular supply to roots of whiskers—156. Vascular supply to internal gill of tadpole, during one phase of development—157. Section through sclerotic coat and retina of cat’s eye, showing vascular supply of choroid vessels cut cross-ways—158. Interior of fully-developed tadpole, exhibiting heart, vascular arrangement and vascular system throughout body and tail.
This plate is designed to show the value, in certain cases, of injected preparations in the delineation of animal structures. By thus artificially restoring the blood and distending the tissues, a better idea is obtained of the relative condition of parts during life.