THE CARNIVOROUS SLUGS OP SOUTH AFRICA. 265 



PLATE XXI. 



Fig. 129. — x 2. Apera gibbonsi s.s.; general view of digestive 

 system.' 



Fig. 130. — X If. A. gibbonsi rubella; general view of digestive 

 system. 



Fig. 131. — x 5. A. parva; general view of digestive system. 



Fig. 132. — x 3A. A. dimidia; general view of digestive system. 



Fig. 133. — X If. A. burnupi; general view of digestive system. 



Fig. 134. — x 2^. A. sexangula; general view of digestive system. 



PLATE XXII. 



Fig. 135. — X 113. Apera sexangiila; transverse section through 

 cesophagus. 



Fig. 136. — X 125. A. dimidia; transverse section through rectum. 



Fig. 137. — x 135. A. dimidia; transverse section through wall of 

 intestine. 



Fig. 138. — x 135. A gibbonsi rubella; transverse section 

 through salivary duct. 



Fig. 139. — x 119. A. gibbonsi rubella; transverse section 

 through part of salivary gland. 



Fig. 140. — X 119. A. dimidia; section through wall of ventricle. 



Fig. 141. — X 135. A. dimidia; section through part of kidney and 

 wall of ureter. 



Fig. 142. — x 194. A. gibbonsi rubella; side view of the end of 

 a papilla from inside penis. 



PLATE XXIII. 

 Fig. 143. — x 2. Apera gibbonsi s.s.; reproductive organs. 

 Fig. 144. — x 2. A. gibbonsi rubella; reproductive organs. 

 Fig. 145. — x 8. A. gibbonsi rubella; interior of penis and 

 epiphallus. 



Fig. 146. — x 6. A. parva; reproductive organs. 

 Fig. 147. — x 4. A. dimidia; reproductive organs. 



' In the specimens shown in figs. 129-134 the right division of the 

 liver, with the adjacent parts of the alimentary canal, is lying to some 

 extent on its right side, in order to show the origin of the hepatic 

 ducts, etc. (Compare figs. 27-31, in which the lobes of the liver are 

 shown more nearly in their natural position as seen from above.) 



