EXPLANATION OF PLATES. 



All figures are reconstruction drawings from sagittal sections of Spelerpes bi- 

 lineatus. 



The colors employed follow the scheme adopted by Strong, viz.: 

 Black for lateral line (also for optic n.), Pink for fasciculus communis, 

 Yellow for general cutaneous,. Blue for motor. 



//. . . 

 ///. . . 

 ///. 06. inf. 

 III. rt. i. 

 III. rt. inf. 



III. rt. su. 



I V. ob. su. 

 Va . . 

 Va\ . . 

 Va* . . 

 V0 . . 

 Vy . . 

 T5 . . 

 Ve . . 

 V.l.n. . 



V. I. na. . 

 V. m. na. 

 V. md. . 

 V. md. ex. 

 V. md. i. 

 V. mx. . 

 V. opt. . 

 V. rx. 



V. rx. mot. 



VI. . . 

 VI. ret. hi. 

 VI. rt. ex. 



VI. rx. mot 



VII. buc. 

 VII. hoi. 



VII. hoi-md. 

 VII. md. ex 

 VII. md. ex 



List of Abbreviations. 



Opticus. 



Oculomotorius 



Branch of III. to m. obliquus inferior. 



" " " rectus internus. 



•' inferior. 



" " " " superior. 



Trochlears to m. obliquus superior. 

 Dorsal branch from ophthalmicus trigemini. 

 Small branch of ]'a. (follows m. rectus superior). 



" " " (to skin of dorsum). 



Branch of r. mandibularis V. (to m. masseter). 



" " " " (to m. temporalis). 



" " " (to skin posterior to angle of jaw). 



" (to skin of lower lip). 

 Erroneously engraved in Fig. 1 for V. I. na. 

 Ramus lateralis narium. 



" medialis " 



" mandibularis trigemini. 



" " " externus trigemini. 



" " " internus " 



" maxillaris trigemini. 



" ophthalmicus trigemini. 

 Ascending root of the trigeminus. 

 Motor 

 Abducens. 

 Branch of VI. to m. retractor bulbi. 



" " " rectus externus. 



Erroneously engraved in Fig. 1 for VII. rx. mot. 

 Ramus buccalis facialis. 



" hyoideus " 



" hyomandibularis facialis. 

 Branch of ramus mandibularis externus (or mentalis) facialis. 



