ABBREVIATIONS 



aab., adductor arcus branchialis 



a.f., anterior fontanelle 



a.m., adductor mandibularis (in fig. 6, 

 coracobranchialis) 



am.h.c, ampullar region of horizontal 

 semicircular canal 



am. p. c, ampullar region of posterior 

 semicircular canal 



a.or.s., antorbital shelf 



a.p., antorbital process 



au.v., auditory vesicle 



b., foramen for blood vessel 



b.a., basal angle 



b.br., basibranchial 



b.hy., basihyal 



br., brain case 



c, canal for carotid artery 



cbr., coraco-branchialis 



cer.br., ceratobranchial 



cer. hi/., ceratohyal 



c.hy., coraco-hyoideus 



cm., coraco-mandibularis 



c.o., crista occipitalis 



cr.c, cranial cavity 



cs., spiracular cartilage 



csd. 1-6, constrictores superiores dor- 

 sales 



csv. 1-6, constrictores superiores ven- 

 trales 



dl., dorsal longitudinal muscles 



dr., dorsal ramus of rostral ligament 



d.s., dorsum sellae 



e.br., epibranchial 



(.c, ethmoid canal 



e.d., endolymph duct 



e.f., epiphysial foramen 



ext. n., external naris 



f.VII, foramen of facialis branch of 

 seventh nerve 



J. end., fossa endolymphaticus 



f.h., fossa hypophyseos 



f.m., foramen magnum 



f.po., fenestra postotica 



g.r., gill rays 



h.c, horizontal semicircular canal 



hy., hyoidarch 



hy.hr., hypobranchial 



hy.m., hyomandibular 



int.arc. 1-5, interarcuales; m, medial 

 system; 1, lateral system 



int.br. 1-5, interbranchiales 



int.c, internal carotid 



1.1-2., labial cartilages 



lg., spiracular ligament 



Us., levator labialis superioris 



Ims, levator maxillae superioris 



M., Meckel's cartilage 



md., mandibular arch 



n.c, nasal capsule 



rich., notochord 



0.77., optic foramen 



o.c, occipital condyle 



om.III., oculomotor foramen 



o.n.c, opening into nasal capsule 



orb., orbit 



o.p., optic pedicel 



o.pr., foramen for ophthalmicus pro- 

 fundus 



o.s., foramen for ophthalmicus super- 

 ficial 



p.b.a., palato-basal articular surface 



p.c, posterior semicircular canal 



per.d., perilymph duct 



ph.br., pharnygobranchial 



p.o., postorbital process 



p.ot., postotic process 



p.p., palatine process 



p.q., pterygoquadrate bar 



pro.D., protractor dorsalis 



q.p., quadrate process of pterygoquad- 

 rate 



r., rostrum 



r.b., rostral bar 



r.c, rostral carina 



r.n., rostro-nasal notch 



s.c, superior semicircular canal 



s.l., sulcus longitudinalis 



s.or.c, supraorbital crest 



s.ot.c, supraotic crest 



t., trapezius 



t.f., trigemino-facial foramen 



tr.c, transbasal canal 



v.r., ventral ramus of rostral ligament 



I-IX, foramina of cranial nerves. 



In all the figures parallel oblique red lines indicate the points of. attachment 

 of muscles. 



436 



