Stri lineate on the lower part of the valve, punctate on the keel.
Punctate, dotted, either with minute holes or what look as such.
All three shell specimens are edge-incised, and two have punctate designs.
Most of the specimens from the Edwards Plateau have a punctate pattern (Fig. 9).
Valve lanceolate; cost slightly radiate, punctate; median area broad, lanceolate.
Valve elliptical-lanceolate, obtuse at the apices; pseudoraphe indistinct; stri, 17 in 10 , punctate.
Valve semicircular, with obtuse apices; stri transverse, punctate; terminal nodules minute and indistinct.
Ventral part hyaline except at the ends, which are obliquely striated, with short, punctate lines.
Axial area absent on the dorsal side; dorsal stri, 10 in 10 , punctate.
Central nodule dilated to a stauros; stri transverse, punctate.