Henchman. — Nervous System of Liiuax. 



PLATE IX. 



All the figures of this plate are magnified 250 diameters, and were made from 

 material killed in Perenyi's fluid, and stained in picro-carminate of lithium. 



Fig. 114. (See explanation of Fig. 95, Plate VII.) Tiie 66th section; it passes 



through tiie cerebral, the pedal, the pleural, and the visceral ganglia 



of the right side in tiie plane of tiie cerebro-pedal and cerebro-pleural 



connectives. It also shows the right otocyst. 

 " 115-120. See explanation of Figs. 97-100, Plate VIII. 

 " 115. Tiie 109th section; it shows a portion of the abdominal ganglion at the 



right of tiie radula sac. 

 " 116. The Ultli section ; it passes through tiie abdominal and right pleural 



ganglia. 

 " 117. The 113th section; it shows the abdominal ganglion where it passes 



above the radula sac, and a portion of tlie right pleural ganglion. 



(Compare Fig. 104, Plate VIII.) 

 " 118. Tlie 102d section; it passes tlirough the pedal ganglia in the phine of 



tlieir anterior commissure. It also shows tlie riglit otocyst. 

 " 119. The 87th section. The pedal ganglia in tlie plane of their posterior 



commissure. 

 " 120. Tiie 121st section, which passes tlirough the visceral and buccal ganglia 



of tlie right side, and shows a portion of the buccal commissure. 



