MR. NEWPORT ON THE NERVOUS SYSTEM OF THE SPHINX LIGUSTRI. 423 



little lateral to the cords, and are connected with the sensitive column 

 id). 

 e, e. Origins of the vagus and of a nerve, as in insects, distributed to the sides 

 of the mouth. 



f. The continuation of the vagus along the dorsal surface of the stomach, 



and in connexion with the anterior distribution of the anterior aortal 

 vessel, as in insects. 



g. The glosso-pharyngeal nerve. 

 h. Mandibular nerves. 



i, i. Nerves to the inferior lip and palpi. 

 k. To the large claws. 

 /, /, /, /. Nerves derived from the upper surface of the cords to the branchise. 

 m. To the circulatory vessels. 

 n. From the ganglia. 



0. Moto-sensitive or symmetrical nerves from the ganglia. 

 p. Their division to the post-abdominal feet. 

 q. Nerves from the upper surface of the cords, 

 r. The terminal pair to the rectum. 

 s. Terminal nerves from the cords and ganglia. 

 t, V, w. To the lamellae of the tail. 

 Fig. 41. The under surface of the 7th, 8th, and 9th thoracic ganglia, exhibiting 

 the compound structure of the ganglia, which are situated entirely on the 

 under surface. 

 Fig. 42. The same portion of the nervous system viewed from the upper surface, and 



exhibiting the two halves of the motor column passing over the ganglia. 

 Fig. 43. The nervous system of Scolopendra morsitanSf Linn., of natural size. 

 Fig. 44. A portion of the same magnified, and showing the involuntary or respira- 

 tory tract (c) passing in the median line above the motor column (5), which 

 is seen distinct from the ganglia of the sensitive (a). 

 Fig. 45. A lateral view of the same. 

 Fig. 46. The motor surface of a ganglion (a), and motor {h) and involuntary 



tracts (c). 

 Fig. 47. A lateral view of the same, showing the ganglia on the under surface, and 

 the line {d) which separates the motor from the sensitive columns ; the 

 involuntary tract passing above them (c). 

 Fig. 48. The cerebral and first suboesophageal ganglia of Scolopendra. 



A. Cerebral ganglia. 



B. Optic nerves. 



D. Antennal nerves with. large ganglia at their base. 



E. The suboesophageal ganglion giving origin to the great mandibular nerves, 



and exhibiting their double origin. 



3 I 2 



