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423 



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Lettering of Figures. 



Cor. p. Coronoid piece. Pr.orb. c. 



Cor. t. Coronoid tentacle. Preiml. 



E])h. Epiphysial bar. Proc. COr. 



H. M. Hyomandibular. Pty. 



Hy. Hyoid. Qu. 



I. V. s. Lateral tentacle-like sup- Sty. Hy. 



port of the velum. R. cor. 



Mx.t. Maxillary tentacle. R.md. 



m.v.s. Median tentacle-like sup- P.md.ext. 



port of the velum. 



Ment. p. Mental piece. R.md.int. 



Ment. t. Mental tentacle. 



Mck. Meckelian cartilage. R. mx. 



tn.Mck. Mento-Meckelian pro- R.ment. 



cess. R.o.p. 



Na Nasal cartilage. 



Na.t. Nasal tentacle. R.pal. 



Op.c. Opercular cartilage. R.pmx. 



Pma\ t. Premaxillary tentacle. R. subm. 



Pnu.p. Premaxillar}- piece. 



Preorbital canal. 

 Prepalatine cartilage. 

 Processus coronoideus. 

 Pterygoid cartilage. 

 Quadrate cartilage. 

 Stylohyal. 



Ramus coronoideus. 

 Ramus mandibularis. 

 Ramus mandibularis ex- 

 temus. 



Ramus mandibularis in- 

 ternus. 



Ramus maxillaris. 

 Ramus mentalis. 

 Ramus ophthalmicus pro- 

 fundus. 



Ramus palatinus. 

 Ramus premaxillaris. 

 Ramus submandibularis. 



