1923 



TYPE A MMOM I'ES—I V 



CCCLXXXII 



Fig. 1 



Fig. 2 





" Perisphinctes pallasianus " 

 Long Crendon, [Bucks^, among Sand ; Barrel Hill, Thame Sands] 

 Geol. Surv. E. 45934, Hudleston C. ; EL, 39, Li, 35, L2, 2^ at i8'5 mm. 

 ^- 35. 3S, 37. 34 ; '^u, 31-5, 38-5, 41-5 ; 25 ribs ; max. 105 + 



PARAVIRGATITES DESIDERATUS. xov. 

 Paravirgatitan, pamvirgatus ; Holotype. See CCCVIII 



