1910 



TYPE AMMONITES— III 



CXXXIVa 



Fig. I. 



F 'g- 3 



l'g-4 

 x 2.5 



Sph^roceras perexpansum, S. Buckman, 1882, Holotype 

 Proc. Dorset N.H. &A.F.C. IV, 142; 11, 4; "Sherborne, Dorset 

 S. 36, 48, 98, 15 ; 50, 47, 87, 13 ; A colomorph, [max. 134] ; 

 Fig. 4; Skeleton S.L., a synthetograph 



LABYRINTHOCERAS PEREXPANSUM, S. Buckman sp. 

 Bajocian, sauzei ; Genotype 



