Respiratory Append aqes 

 $ Nerve Supply 



Huoiti 



Fig. 63. — Ventral half 

 of Head-region of Am- 

 moccetes. 



-Pigment 



Somatic muscles coloured 

 red. Branchial and visce- 

 ral muscles coloured blue. 

 Tubular constrictor mus- 

 cles distinguished from 

 striated constrictor mus- 

 cles by simple hatching. 

 Tent., tentacles ; Tent. m.c., 

 muco-cartilage of tenta- 

 cles; Vel. m.c, muco-car- 

 tilage of the velum ; Hy. 

 m.c. muco-cartilage of the 

 hyoid segment; Ps. br., 

 pseudo-branchial groove ; 

 Br. cart., branchial carti- 

 lages ; Sp., space between 

 somatic and splanchnic 

 muscles ; Tit. op., orifice of 

 thyroid ; //., heart. 



