12 



PICO-PASSERES. 



Genus NUCIFRAGA. 

 Briss. Orn. ii. p. 58 (1760). 



A. No fenestra in intororbital septum, but an irregular deficiency 



in the ossification of the cranium above the optic foramen. 



B. Squamosal zygoma very long and broad at its origin, so that 



it forms a considerable portion of the orbital margin. 



C. Palatines with their posterior extremity prolonged backwards 



as a broad process (see fig. 9). 



D. Flexure of lower jaw opposite the naso-frontal suture. 



Fis 



Fiff. 8. 



'/ cf jfzp J/j&, 



Fig. 8. — Lateral view of skull of Nucifraga caryocatactes. so./., supraorbital 

 fenestra ; o.f., optic foramen ; f.z.j)., frontal zygomatic process ; s.z.ji., 

 squamosal zygomatic process. 



Fig. 9. — Ventral view of palate, to show the vomer and posterior extremities 

 of palatine bones. 

 (From a specimen in the Museum of the Royal College of Surgeons.) 



Nucifraga caryocatactes. 



Corvus caryocatactes, Liunajus, S. N. i. p. 157 (1766). 

 Nucifraga caryocatactes, Sharpe, Cat. B. Brit. Mus. iii. p. 53 

 (1877) ; Eyton, Osteol. Av. p. 148. 



The Nutcracker. 



Hah. Europe and Northern Asia. 



47. Sternum, with shoulder-girdle. 0. C. 1555 e. 



Presented hy C. G. Danford, Esq. 



48. Skull of male. From Germany. 



49. Skull of female. From Germany. 



Purchased. 

 Purchased. 



