SUPPLEMENT. 



267 



Ophthalmosaurus icenicus (supra, ii. p. 9). 



In addition to the characters given in Pt. J I. it may be observed 

 that the postaxial facet of the humerus is narrow and terminates 

 in a point, and that the radial and ulnar facets are also narrow, and 

 the former with a pointed termination. The late cervical vertebrae 

 have no channel on the haemal surface. 



No. K. 472 (supra, ii. p. 12) is undoubtedly a femur of this 

 species ; while No. R. 472 a (ibid p. 29) is also a femur of 

 this or an allied species, in which the third facet is scarcely 

 marked. The humeri Nos. 47885, 4647 (ibid. p. 11) show ail the 

 characters of this species, and may therefore perhaps be from the 

 Oxford Clay. 



Fig. 62. 



Ophthalmosaurus icenicus. —Dorsal aspect of part of the right pectoral limb, with 

 a view of the distal extremity of the humerus. § . h, humerus ; a, troch- 

 anteric ridge of do. ; r, radius ; u, ulna ; p, pisiform. 



R. 1667. The left scapula ; from the Oxford Clay near Peterborough. 

 Accords with the corresponding bone of the type. 



Presented by A. N. Leeds, Esq., 1889. 



