8. Scephites constrictus, from St Columbu in CG.S. No. 21122. limestone steinhorn (identical spec. Plxxxi) rounded venter strong even p-s-t ribbing ribbing obscure low, coarse whorl section near lip septate whorls compressed but stout, venter rounded; body chamber: - or'd 1/2 quadrata after rapid expansion. Ribs on venter do not arch forward as in American forms 9. D.(H.) nicolleti CGS 21816 Sheet prepared for this one. 10. Cast of "Scephites nicolleti" fig'd by Meek in v. 9., pl. 34, fig. 2A. - from Chayenne River near Black Hills. USNM 407. This specimen has umbilical bulge and resemble Trail City forms except for 5