674 



FRANCIS M. BALDWIN 



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the vertebrates with observations on some closely related structures. 



Phil. Trans. R. Soc. London. Series B., vol. 201. 



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vertebres. Arch. d'Anat. Micro., T. 10. 

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branchiaux chez les vertebres superieurs. These. Toulouse. 



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1884. • 

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Arch. f. mikr. Anat., Bd. 52. 



ABBREVIATIONS 



a.a. 1-4, aortic arches 



a.b.a.i-4, afferent branchial arteries 



a.L, aditus la.-yngeus muscle 



ao., dorsal aorta 



/r.i_5, branchial pouches 



c.6r. 1-4, branchial cartilages 



eg,, carotid gland 



CO., copula 



d.c, Cuverian duct 



d.i., gastric muscle 



fi.l., dorso-laryngeus muscle 



e., epithelial cells 



e.b._i,2, epithelial bodies 



e.b.a. 1-4, efferent branchial arteries 



ex., external carotid artery 



e.j., inferior (external) jugular vein 



fol., thyreoid follicles 



g.hy., geniohyoideus muscle 



ht., heart 



III/., hyoid 



hy.m., hyomandibular pouch 



■i.e., internal carotid artery 



i.j., internal jugular vein 



L, lateralis nerve of the vagus 



/aLd.,latissimus dorsi muscle 



l.br., levator branchiarum muscles 



I.S., levator scapularis muscle 



ma., mandibular artery 



7nas., masseter muscle 



m.c., Meckel's cartilage 



m.hy. mylohyoideus muscle 



m.p., mandibular-pectoralis muscle 



11., notochord 



n.1,2,3, branchial nerves 



p. n., pulmonary artery 



ph., postbranchial body 



ph., pharynx 



pro-h., procoraco-humeralis muscle 



St., stomodeum 



S.V., sinus venosus 



?.i_5, thymus bodies and gland 



te., temporalis muscle 



tp., trapezius muscle 



tr., thyreoid anlage or gland 



v.a., ventral aorta 



V.V., vascular vessels 



VII, facial ganglion 



IX, glossopharyngeal ganglion 



X, vagus ganglion 



1, cartilage of the first arch 



2, cartilage of the second arch 



3, cartilage of the third arch 



4, cartilage of the fourth arch 



