1927 



TYPE AMMONITES— VI 



DCCVIII 



Fig. I 



Fig. 2 



Dactylioceras commune 

 Whitby, Yorkshire ; Upper Lias, [Alum Shale or above] 

 S.B. Coll. 4724, purch. ; S. 52, 25, 26, 60 ; 79, 20-25, i9- 62 

 Has mouth. See T.A. vi, Feb., 1927, p. 43 



CURVIDACTYLITES CURVICOSTA, S. Buckman 

 Hildoceratan bifrons ; Genotype, Holotype. Cf. DCLVII 



