MUSCLES OF CERATODUS 



357 



Lepidosiren. 



Genio-thoracicus. 



Coraco-hyoideus. 



Ceratodus. 



Levatores arcuum branchia- 

 lium. 



Const rictores branch iales. 

 CucuUaris. 



Subarcularis rectus i. s. 

 Branchio-hyoideus. 



Subarcualis rectus v. 

 Coraco-branchialis. 



Transversi ventrales ii and iii. 

 Transversus ventralis ii. 

 Transversus ventralis iii. 

 Transversus ventralis iv. 

 Transversus ventralis v. 



Sphincter oesophagi et 



laryngis. 



Gerade untere Stammmuskel (anterior 

 part of), Hyrtl. 



Unnamed, Maurer. 



Retractor ossis hyoidei and Coraco- 

 hyoideus, Hyrtl. 



Coraco-hyoid, Agar. 



Levatores arcuum branchialium, K. Fiir- 



bringer. 

 Cranio-branchiales, Jaquet. 

 Levatores arcuum branchialium (first 



four) and dorsal part of Dorso- 



pharyngeus (fifth), Greil. 

 Branchiales, Jaquet. 

 Interbranchiales, K. Fiirbringer, 

 Branchiales septales, Greil. 

 Scapulo-branchialis, Jaquet. 

 Levator scapulae, Greil (1907). 

 Dorso-clavicularis s. Trapezius s. Clavi- 



cularis, Greil (1913). 

 Cerato-hyoideus internus, Fiirbringer. 

 Grand abducteur du premier arc 



branchial, Jaquet. 

 Cerato-hyoideus, Greil. 

 Dorso-branchialis, Dorso-cerato-bran- 



chialis, Greil. 

 Coraco-branchialis, Fiirbringer, Jaquet. 

 Coraco-branchialis, Cleidc-branchialis, 



Coraco-cleido-branchialis, Greil. 

 Muscle chiasmique, Jaquet. 

 Interbranchialis anterior. ; 

 Interbranchialis posterior. 

 Interbranchialis iv. r Greil. 



Interbranchialis v. s. ventral i 



part of Dorso-pharyngeus. ' 



Ceratodus. 



Protopterus. 



Lepidosiren. 



Constrictor pharyngis, 



Wiedersheim. 

 Constrictor pharyngis et 



laryngis, Wiedersheim. 

 Constrictor pharyngis, 



Goppert. 

 Constrictor isthmi fau- 



cium, Hyrtl. 



NO. 267 



