Mr. Yarrell on the Anatomy of the Corvorant, 237 



entertained in the foregoing observations will be considered the correct 

 one. 



Legons d' Anatomic Comparee de G. Cuvier, torn. I, p. 229. 



" Dans le cormoran, la protuberance occipitale supporte un os alonge, 

 " triangulaire, qui paroit provenir de 1' ossification du ligament cervical." 



A manual of comparative anatomy translated from the German of 

 I. F. Blumenbach with additional notes, by William Lawrence, Esq., the 

 second edition, revised and augmented by William Coulson, Esq., p. 56. 



" A peculiarity, which seems to be confined to the cormorants, must 

 " be here mentioned. There is a small sabre-shaped bone at the back of 

 " its vertex, which is supposed to serve as a lever in throwing back the 

 " head, when the animal tosses the fishes which it has taken, into the 

 " air, and catches them in its open mouth. But the same motion is per- 

 " formed by some other piscivorous birds, who are unprovided with this 

 " particular bone." 



Traite complet de Panatomie de I'homme, comparee dans ses points 

 les plus importans a celle des animaux. Par H. Cloquet, Paris, 1826, 

 p. 200 and 201 . " Chez le cormoran f Phalacrocorax carboj comme I'a 

 " note M. Cuvier, la protuberance occipitale supporte un os alonge, 

 " triangulaire, et qui parait etre le resultat de 1' ossification du ligament 

 " cervical." 



Fife's outlines of comparative anatomy, and the more recent publica- 

 tion of Mr. Gore's translation of the comparative anatomy of Cams, 

 contain no notice of this structure. 



Ryder Street, 

 August, 1828. 



Description of the Plate, lower part. 

 PL. VII. 



Fig. 5. Cranium of the Corvorant, reduced in size, a, the occipital 



crest; b. the xiphoid bone ; c. the os quadratum. 



6. Cranium of the Corvorant, with the muscles moving the lower 



mandible, a. and 5. muscles aswering to the masseter 



and temporal, c. the muscle arising from the xiphoid bone.. 



