88 



CEOCODILIA. 



museum at Biickeburg. They are figured by Meyer in 

 Dunker's 'Monographie d. norddeutschenWealdenbildung,' 

 pis. xvii.-xix. (1846). Purchased, 1867. 



Pholidosaurus meyeri (Dunker l ). 

 Syn. Macrorhynchus 7neyeri, Dunker 2 . 



This form is regarded by Koken as distinguished from the pre- 

 ceding by the form of the cranium, the structure of the internal ear, 

 and apparently by the rounding of the bar dividing the supratem- 

 poral fossae, and the form of the posterior nares. 



Hab. Europe (Germany and ? England). 



28966. The imperfect hinder portion of a skull with attached cer- 

 vical vertebrae and scutes, apparently belonging to this 

 species ; from the Wealden of Brook, Isle of Wight. This 

 specimen is described by the present writer in the ' Geol. 

 Mag.' dec. 3, vol. iv. p. 311 (1887) ; it apparently agrees 

 precisely with the figure of the upper surface of the type 

 skull given by Meyer in Dunker's ' Monographie der nord- 

 deutschen Wealdenbildung,' pi. xx. (1846), and differs 

 from that of P. schaumburgensis, given by Koken in the 

 ' Pal. Abhandl.' vol. iii. pis. xxii., xxiii., by the rounding 

 of the bar dividing the supratemporal fossae, and the con- 

 tour of the posterior nares. The communication of the 

 orbit with the supratemporal fossae is well shown, and the 

 few hinder teeth still remaining are small and slender. 



Hastings Collection. Purchased, 1855. 



The following specimens may belong either to this or the preceding 



species. 

 36537. The crown of a tooth ; from the Wealden of Brook. 



Mantell Collection. Purchased, 1853. 



46777-8. Two imperfect dorsal vertebrae not improbably belonging 

 to the present genus ; from Brook. The centra have no 

 trace of a haemal keel. Purchased, 1875. 



Subfamily Petrosuchin^e. 



Posterior nares placed near middle of cranium ; scutes not im- 

 probably without peg-and-socket articulation, and of a Teleosauroid 

 type. 



1 Program, bocb. Gewerbscbule in Cassel, p. 44 (1844).; — Macrorhynchus. 



2 Loc. cit. 



