170 DIFOSAUKIA. 



Dryptosaurus aquihmguis (Cope 1 ). 

 Syn. Lcelaps aquilinguis, Cope 2 . 



Apparently equal in size to Megalosaurus buchlandi. 

 Hab. North America. 



50100. A series of casts of bones, comprising (among others) 

 parts of the mandible, dorsal and caudal vertebrae, the 

 tibiae, an astragalus, a metatarsal, and phalangeals. The 

 originals, which are the types, were obtained from the 

 Greensand of Barsborough, Gloucester county, New 

 Jersey, U.S.A. ; and are figured by Cope in the ' Trans. 

 Amer. Phil. Soc/ vol. xiv. pis, viii.-xi. Purchased. 



44898. Casts of the first and second phalangeals of one digit of the 



pes provisionally referred to this genus. The originals 



were probably obtained from the Greensand of New Jersey. 



Presented by Sir E. Owen, K.C.B., 1874. 



Genus BOTHRIOSPONDYLUS, Owen 3 . 



Cervical vertebrae probably opisthocoelous ; postcervicals with 

 their centra greatly constricted inferiorly and laterally, and having 

 a large pit on either side below the neuro-central suture ; there 

 appear to have been at least three sacral vertebrae, one of which 

 carries its own arch. Teeth of this genus may be included under 

 the head of Megalosaurus. 



Greosaurus, Marsh 4 , appears to be a closely allied form, in which 

 there are two sacral vertebrae, and the ilium has a deep postace- 

 tabular portion, with a slight incision above the pubic process. 



Bothriospondylus suffosus, Owen 5 . 



The type species. Considerably smaller than Megalosaurus 

 buchlandi, with the pits in the vertebral centra deep. 

 Hab. Europe (England). 



1 Proc. Ac. Nat. Sci. Philad. 1866, p. 276.— Lelaps. 



2 Loc. cit. 



3 Mesozoic Eeptilia (Mon. Pal. Soc), pt. ii. p. 15 (1875). 



1 Amer. Journ. ser. 3, vol. xv. p. 243 (1878). See vol. xxvii. pi. xiv. ; the 

 vertebrae figured in the latter plate were also figured in vol. xvii. pi. x. as 

 Allosaurus. 



5 Loc. cit. 



