1920 



TYPE AMMONITES— III 



CXCI 



F'g- 3 

 X c.3 



r^i 



Perisphinctes martinsii ; S. Buckman 1881 



Q.J.G.S. XXXVII, 602 ; " with the termination " ; Louse Hill 



Nether Compton, Dorset ; " I. O. [above Irony Bed], Cosm. park, z." 



S. B. Coll. 3175 ; S. 34, 26-5, 26-5, 50 ; 38 ribs ; c. £wh. body-ch. 



PSEUDOBIGOTELLA OTIOPHORA, nov. 

 Bajocian, niortensis ; Holotype. Cf. CLXI 



