1921 



TYPE AMMONITES— III 



CCXLI 



Fig. i 



'AJ^ttKB* 



Fig. 2 



Perisphinctes davIdsoni ; S. Buckman, 1881, Paratype 

 1882, Proc. Dorset F.C., IV, 144 ; iv, 2 ; " Frogden 0., Oborne, Dorset 

 " Humph, z." [Q.J.G.S., XLIX, 1893, § xv, 4] ; Manchester M. (S.B. Coll.) 

 L. 11360 ; S. 42, 24, 19, 54 ; c. 53 ribs. Body-ch. complete ; mouth plain 



CAUMONTISPHINCTES APLOUS, NOV. 

 Bajocian, niortensis ; Holotype ; See CXCII 



