DOLICHOSAURICSE. 275 



Family DOLICHOSAURIDiE. 



The only family ; also represented by Acteosaurus, Meyer \ in the 

 Cretaceous of Austria. 



Genus DOLXCHOSAURUS, Owen 2 . 

 Vertebrae much elongated ; seventeen in the cervical region. 



Dolichosaurus longicollis, Owen 3 . 

 The type species. Not larger than the common English snake. 

 Hab. Europe (England). 



49002. The anterior half of the skeleton ; from the Lower Chalk of 



(Fig.) Burham, Kent. The type specimen. Figured in Dixon's 



' Geology of Sussex,' 1st ed. pi. xxxviii. figs. 1,2; in the 



4 Geologist,' vol. vi. pi. xiv. ; and in Owen's ' Cretaceous 



Keptilia' (lion. Pal. Soc), pt. i. pi. x. figs. 1-3. 



Purchased, 1878. 



32268. Portion of the vertebral column; from Burham. Figured 

 (Fir/.) by Owen in the ' Trans. Geol. Soc' ser. 2, vol. vi. pi. xxxix. 

 fig. 4 (1840), and noticed in the Rep. Brit. Assoc, for 

 1841, p. 145, as Bhaphiosaurus ; also figured in Dixon's 

 ' Geology of Sussex,' pi. xxxix. fig. 4, and in Owen's 

 ' Cretaceous Keptilia/ pt. i. pi. x. fig. 4. 



Presented by Sir P. de M. G. Egerton, Bart, 1856. 



44141. Fragments of the skull and some of the anterior vertebrae; 

 from the Chalk of Lidden Spout, near Folkestone, Kent. 



Purchased, 1873. 



49907-8. Fragments of the trunk, tail, and anterior limb; from 

 the Chalk of Southeram Pit, near Lewes, Sussex. 



Purchased. 1879. 



Suborder LACERTILIA. 



Body usually lacertiform, but occasionally anguiform. Ali- and 

 orbitosphenoidal region imperfectly ossified ; superior temporal 

 arcade usually present ; quadrate articulating with pterygoid ; 

 nasals entering nares ; mandibular rami uniting bj r suture. Vertebral 

 occasionally amphiccelous ; usually without zygosphenes ; and never 

 more than nine in the cervical region. When limbs are present 



1 PaliBontograpbica, vol. vii. art. 4. p. 223 (1860). 



3 In Dixon's 'Geology of Sussex/ 1st ed. p. 388 (1850). 3 Lor. at. 



t2 



