Operculina bartschi Cushman, 1921

Figure 12.9

1921 Operculina bartschi Cushman, p. 376, text-fig. 13.

2012 Operculina bartschi Cushman; Debenay, p. 228.

Description. Test lenticular, surface ornamented with nodules in between the chambers, umbilical region with slightly raised granular knobs; chambers narrow, rapidly increasing in width, slightly inflated, not flaring, coiling evolute; periphery rounded with a thin keel, sutures distinct and depressed; aperture at the base of the apertural face.