158 SATJKOPTEKYGIA. 



jection of the anterior border of the inferior surface, as in 

 some of the later cervicals of Pliosaurus macromerus. 

 The dimensions are : — length 0,034 (1*35 inches), height 

 0,052 (2-05 inches), width 0,055 (2-18 inches). 



Made in the Museum, 1888. 



It. 1414. Cast of the centrum of a cervical vertebra of an immature 

 individual. The original belongs to a skeleton in the 

 collection of A. 1ST. Leeds, Esq., which was obtained from 

 the Oxford Clay near Peterborough. The specimen is 

 somewhat crushed, but the double costal facets are very 

 distinct. Made in the Museum, 1888. 



R. 1414 a. Cast of the centrum of a larger cervical vertebra of an 

 immature individual. The original belongs to a second 

 skeleton in the above collection, which was obtained from 

 the same deposit. The dimensions are: — length 0,033 

 (1-3 inches), height 0,048 (1*9 inches), width 0,056 

 (2*2 inches). The double costal facets are distinct, and 

 the forward projection of the lower border of the anterior 

 face well-marked. The general characters are very like 

 those of the larger cervical of P. cequalis, No. E. 1413 

 (p. 153). Made in the Museum, 1888. 



47410. An imperfect pelvic limb ; from the Oxford Clay of Whit- 

 tlesea, near Peterborough. The femur, tibia, and fibula, 

 and the greater number of the tarsal and phalangeal bones 

 are preserved ; but the arrangement of many of them in 

 the plaster in which they are set is incorrect. The tibia 

 and fibula closely resemble those of No. E. 1253, the 

 former being antero -posteriorly elongated. The femur 

 is indistinguishable in contour from the type femur of 

 P. cequalis (fig. 50), and the fibula, although slightly 

 larger, corresponds closely with the corresponding bone of 

 No. E. 1253. Sharp Collection. 



Genus THAUMATOSAURUS, Meyer 1 . 



Syn. Phomaleosaurus, Seeley 2 . 



Skull relatively very large, with short rostrum, and broad spatu- 

 late mandibular symphysis of moderate length (fig. 47, B), the 

 premaxillary and symphysial teeth being enlarged. Teeth carinated, 



1 Neues Jahrb. 1841, p. 176. 



2 Quart. Journ. Geol. Soc. vol. xxx. p. 448 (1874). 



