1925 



TYPE AMMONITES— VI 



DCVlB 



Fig. I 



Fig. 2 



" Perisphinctes DEVILLEI " 



[Hartwell, Bucks, Brickpit in field 151] ; " Portland Stone " 



Matrix as 2061/H (DCVIa) ; " Bucks C. Mus. (Z. D. Hunt Coll.) 107/25' 



S. 16, 47, 40, 28 ; 33, 41, 35, 30 ; c. 38 ribs ; colomorph 



LYDISTRATITES CUNCTATOR, nov. 

 Paravirgatitan, lyditiais ; Paratype. See DCV 



