INDEX LETTERS 



a., branch of anterior efferent hyal 

 artery to angle of gape of mouth 



aal., afferent artery of first branchial 

 arch 



auL, anterior upper labial cartilage 



aehy., anterior efferent hyal artery 



ahy., afferent hyal artery 



Amd., musculus adductor mandibulae 



amd., afferent mandibular artery 



amd.+aehy., artery formed by fusion 

 of afferent mandibular and anterior 

 efferent hyal arteries 



apsb., afferent pseudobranchial artery 



ath., thyroid artery 



BR., branchial rays 



CH., ceratohyal 



c.hy-md., commissural vessel between 

 the efferent hyal and afferent man- 

 dibular arteries 



c.md-ec, commissural vessel between 

 the afferent mandibular and ex- 

 ternal carotid arteries 



ecmd., mandibular branch of external 

 carotid artery 



ecmx., maxillary branch of external 

 carotid artery 



ehy., efferent hyal artery 



HMD., hyomandibula 



h?nf., truncus hyoideo-mandibularis 



facialis 

 Ihbr., lateral hypobranchial artery 

 Lis., musculus levator labii superioris 

 //n/i.,Iigamentummandibulo-hyoideum 

 Lms., musculus levator maxillae supe- 

 rioris 

 MD., mandibula 



7ndl., mandibular labial cartilage 

 7ndt., nervus mandibularis trigemini 

 mhbr., median hypobranchial artery 

 mi J., nervus mandibularis internus 



facialis 

 pul., posterior upper labial cartilage 

 pehy., posterior efferent hyal artery 

 PPR., postorbital process of chon- 



drocranium 

 PQ., palatoquadrate 

 sm., submental artery 

 spr., spiracle 

 ta., truncus arteriosus 

 th., thyreoid gland 



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