514 STARKS 



Ectopterygoid. Huxley. 



JSxtermim. Stannius. 



Gaumenbein ^ os palatlnu?n. Erdl. Not gaumenbein of 



Meckel, No. 21 ; nor palat in um of Stannius, No. 21. 

 KeilbeinJIugel. Kostl i n . 



Os transversu7n s. pterygoideu?n externum. Stannius. 

 Pterygoideum externum. Kallmann. 

 Transverse. Cuvier, Agassiz. 



21. Palatine. Owen, Parker. 



Gautnefibetn. Meckel. Not Gaumenbein of Erdl, No. 20. 



Os palat inutn. Stannius. 



Palatin. Cuvier, Agassiz, Giinther, Geoffrey. 



22. Mesopterygoid. Parker. 

 Entopterygoid. Owen, Giinther, Huxley. 



Ergdnzungsstiick oder Fliigelfortsatz^ os pterygoideum. Erdl. 

 Uerisseal. Geoffroy. 



Os pterygoideum. Stannius. 

 Os transverstim. Kostlin. 

 Pterygo'idien inter?ze. Cuvier, Agassiz. 

 Pterygoideum internufn. Hallmann. 

 Unterc KeilbcinJingeL Meckel. 



23. Metapterygoid. Huxley, Parker, Giinther. 

 Caisse. Agassiz. 



Epicotyleal. Geoffroy. 

 Gaumenjliigel des Keilbein. Bojanus. 

 Hintere^ Stiick des os quadratum. Erdl. 

 Os tympanicum. Stannius. 

 Os tytnpafii. Agassiz. 

 Ptcrygoideuftz poster ius. Kallmann. 

 Prety?npanic. Owen. 



Scheibenformig Knoche. Meckel, Wagner. 

 Tytnpatial. Cuvier. Not tympanal of Geoffroy, No. 24. 



' Only one element is shown in Erdl's plate where the palatine and ptery- 

 goid usually are. Its articulation below is typical for the pterygoid, while 

 above it is described as being attached to the vomer. Either the palatine is 

 missing or the suture between it and the pterygoid has been overlooked. Erdl 

 uses the same names as Meckel and Stannius for the palatine. In his MS. 

 notes Owen has identified it as the pterygoid and it is here so inserted. 



2 In his MS. notes Owens refers this to the symplectic {mesotymfanic). The 

 shape, size and position of the bone in Erdl's plate would seem clearly to indi- 

 cate the metapterygoid . 



