t'.v.'v/*! Ganglia. 



I ■ \ General cutaneous nerves. 



I I Lateral line and VIII nerves 



^ ^l3 Visceral motor nerves. 



Visceral sensory nerves. 



Somatic motor nerves. 



nasal sac 1 



br.X£, second ramus branchialis X. 



br.XS, third ramus branchialis X. 



buc.VII, ramus buccalis VII. 



chl.VII, chorda tympani VII. 



cil.a, anterior ciliary nerve. 



cil.p, posterior ciliary nerves. 



dors.X, ramus dorsalis X. 



hybr. (occ. l-\-3,sp.l, 2, J), nervus hypo- 



branchialis. 

 hy.VII, ramus hyoideus VII. 



II, nervus opticus. 



III, nervus oculomotorius. 



Abbri 



IV, nervus trochlearis. 



IXr, roots of glossopharyngeus. 



lat.X, ramus lateralis X. 



max.V, ramus maxillaris V. 



iwIpXII, ramus mandibularis externus VII. ■ 



m'h.YII, ramus mandibularis internus VII. j 



tnd.V, ramus mandibularis V. 



?(. term, nervus terminalis. "'•" 



occ.l+S, occipital nerves. 



op.Y, ramus ophthalmicus profundus V. 



os.V, ramus ophthalmicus superficialis V. ' 



os. VII, ramus ophthalmicus superficialisVII. 



Fig. 5A. — Distribution of the nerve components in Squalus acanthias, seen from thi 

 by broken lines. The functional composition of the nerves ii 



24 



