1927 



TYPE AMMONITES— VII 



N.S. 



DCCXLVII c 



" Ammonites " variocostatus 

 Sharnbrook, Bedford " ; S.B. Coll. 4735 ; the body-chamber removed 

 Where the big ribs are weathered (or eroded ?) 

 more than 10 layers of test can be counted 



DICHOTOMOCERAS STRUMATUM, nov. 

 Prionodoceratan, dichotomum ; Holotype. See CXXXIX 



