"141 b. S. SPARSA.
Size rather large, 1.10 by .45; cylindriconic; aperture fairly wide, .25, margin thin, .08, frontal bar low, narrow, lower tooth narrow less in height than one half its length upper tooth short and set low; costae low, narrow, not as wide as interspaces, rather regular, and double at the umbilical area. Twenty specimens found living in a field at St. James Corner.