1913 AMMONITES REGULARIS 77c 



Comparable Species 



32 40 19 29 



Pleuroceras pseudocostatum, Hyatt, 1867, p. 90 = 



Am. costatus nudus, Quenstedt, Jura, xxi, 3 — F. 44, 34 [25 ?] 36. 



See also Nos. 22, 24, 52; and for spp. of genus, 24d. 



