1920 



TYPE AMMONITES— III 



CLX 



Fig. 



Fig. 2 



Fig- 3 



N.S. 



X 0-8 



" PERISPHINCTES DAVIDSONI 



[Frogden Quarry], " Oborne, Dorset; I. O." [Roadstone (up. part] ; 



S.B., ex Darell, Coll. 884 ; S. 101, 32, 21, 44 ; 68 ribs ; 



Max. c. 160 



LEPTOSPHINCTES LEPTUS, nov. 

 Bajocian, niortensis ; Genotype, Holotype 



