ICHTHYOSAFRID^. 19 



It. 16 a. Six associated much smaller teeth in matrix; probably 

 belonging to a young individual of this species ; from the 

 Gault of Folkestone. Gardner Collection. 



47270. Fragment of jaw containing one tooth ; from the Gault of 

 Folkestone. Gardner Collection. 



36318. A large tooth in matrix ; from the Gault of Folkestone. 



Purchased, 1862. 



36384. An imperfect large tooth in matrix: from the Gault of 

 Folkestone. Purchased, 1862. 



33245. Several leeth, mostly imperfect; from the Cretaceous of 

 Kursk, Russia. Similar teeth are figured by Kiprijanoff 

 in the ' Mem. Ac. Imp. St. Petersbourg/ vol. xxviii. art. 8, 

 pis. i., ii. (1881). Presented by Col. Kiprijanoff. 



40558. An imperfect left femur of a very large individual ; from 

 the Cambridge Greensand of Wadden, near Cambridge. 

 This specimen has been longitudinally split, and at the 

 distal extremity only the tibial facet remains entire, which 

 has a transverse diameter of 0,071. This bone resembles 

 the smaller Russian examples figured by Kiprijanoff in the 

 1 Mem. Ac. Imp. St. Petersbourg/ vol. xxviii. art. 8, pi. xv. 

 (1881); one of which is reproduced in woodcut fig. 10, 

 p. 15. The very large size and shortness of this bone 

 probably indicates that the pelvic paddle agreed closely in 

 size and structure with the pectoral, as seems to have 

 been the case with Ojrfithalmosaurus. Purchased, 1867. 



35272. An imperfect femur of a considerably smaller individual ; 

 from the Cambridge Greensand. The two distal facets 

 are entire and well preserved. Purchased, 1859. 



35311. A still smaller femur, in a water-worn condition; from the 

 Cambridge Greensand. The two facets at the distal ex- 

 tremity are clearly shown. Purchased, 1859. 



35321. A series of associated bones of the paddle; from the Cam- 

 bridge Greensand. These and other similar specimens in 

 the Woodwardian Muscumat Cambridge apparently indicate 

 that the anterior border of the radius and tibia was entire. 

 The phalangeals are of the quadrangular form charac- 

 teristic of the Latipinnatc group, and are quite different 

 from the corresponding bones of Baptanodon, so that it 



o'A 



