196 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxvi. 



EXPLANATION OF PLATE 5. 



1. Palatal surface of the front of the skull. 



2. Left paroccipital. Above aud to the left of the numeral is the prootie; 

 aboA-e and to the right is the basisphenoid. 



3. Dentary bones, showing the triturating surfaces. The hinder end of the 

 left dentary lies against one of the ceratohyals. The upper end of this cerato- 

 hyal lies against the left pterygoid. The right pterygoid touches the hinder 

 end of the right dentary. 



^. Left postfrontal, inner surface. Below it lies the left parietal, showing 

 the outer face. The descending process is directed upward and toward the right. 



5. Right parietal, inner surface. The descending process is directed downward. 



6. Supraoccipital, with the posterior process directed upward. 



7. Left squamosal, inner face. 



8. Left quadra tojugal. 



9. Left jugal, inner surface. Orbital surface on the left and looking down- 

 ward. 



10. Right jugal, inner surface. Orbital surface on the right and looking 

 downward. 



11. Right postfrontal, inner surface, hinder end upward. Above it and appar- 

 ently in natural relation to it is the right quadratojugal. 



12. A neural bone, with the median ridge toward the left. 



13. Part of a neural. 



IJf. A large neural, showing its inferior face. 



15. A short neural, the numeral on the median ridge. 



16. A neural. 



• 17. An ossicle that occupied a position across the suture between two neurals. 

 IS. The nuchal bone, upper surface. 

 19-26. Peripheral bones, first to eighth of the left side. 

 27-29. Peripheral bones, third to fifth of right side. 

 30-3Jt. Peripherals, all probably of right side. 

 35, 36. First and second peripherals of right side. 

 37-39. Costal bones. 

 40. Right epiplastron. 

 41-47. Costal bones. 



48. Left hyoplastron. 



49. Left hypoplastron. 



50. Right hypoplastron. 



51. Left xiphiplastron. 



52. Right hyoplastron. 



53. A short costal bone. 



54. liight coracoid, its left end lying on the right hyoplastron. 



55. Right humerus, its proximal end showing behind the numeral //7. 



56. I^eft scapula, Ihe shaft directed upward, the procoracoid process to the 

 right. 



57. Right scapula, the shaft passing under that of the left scapula, the pro- 

 coracoid process directed backward. 



58. Left humerus, the proximal end passing backward under costal num- 

 bered 39. 



Above the numeral 54 there is seen a slender bone whose head is toward the 

 left. This seems to be one of the reduced first ribs. The head of this bone lies 

 against the entoplastron. "^he anterior end of the latter bone is overlain by 

 the extremity of the procoracoid process of the right scapula, 57, 



