140 DINOSAURIA. 



36559 b. The hinder part of the centrum of the third sacral vertebra 

 of the same individual. Hastings Collection. 



28640. The centrum of the fourth sacral vertebra of the same 



individual. Mantcll Collection. Purchased, 1853. 



36559 C. The imperfect centrum and arch of an anterior caudal 

 vertebra of the same individual. This specimen agrees 

 precisely with the type anterior caudals, No. 10390, on 

 which resemblance the identification of the entire set of 

 associated specimens rests. Hastings Collection. 



36559 d. The lower and one lateral surface of a later dorsal vertebra 

 of the same individual. Double chevron-facets are 

 shown. Same history. 



36559 e. Two metatarsals and four phalangeals, of which two are 

 terminal, of the same individual. The terminal bones are 

 much smaller than those of Ornithopsis (No. R. 986). 



Same history. 



28641. The imperfect centrum of a sacral vertebra belonging to a 



different individual from the preceding. 



Mantell Collection. 



2544-50. Pour associated anterior caudal vertebrae, with two asso- 

 (Pig.) ciated chevrons ; from Cuckfield. These specimens, which 

 are described by Owen in the ' Kep. Brit. Assoc' for 1841, 

 pp. 97-99, it will be convenient to regard as the types. 

 They are noticed by Melville in the ' Phil. Trans.' 1849, 

 p. 296, and figured by Mantell in the < Phil. Trans.' 1850, 

 pis. xxii., xxiv., xxv., as Pelorosaurus ; one of them being 

 also figured by the latter writer in his ' Petrifactions and 

 their Teachings,' p. 331, fig. 72. They are figured by 

 Owen in his ' Wealden and Purbeck Reptilia,' suppl. ii. 

 pi. x. Their close resemblance to the anterior caudals of 

 C. oxoniensis figured in Phillips's ' Geology of Oxford,' 

 ]>. 259, fig. 89, is noticed in that work. 



Mantell Collection. Purchased, 1838. 



28943. The centrum and base of the arch of a later caudal vertebra 

 of apparently similar type ; from the Isle of Wight. 



Hastings Collection. Purchased, 1855. 



2144. A nearly entire postmedian caudal vertebra, with the chevron 

 {Pig.) anchyloscd lo it ; from Cuckfield. Figured by Mantell in 



