Thelyssina ? spec. 2

(Figures 23–25)

Material. AndaDeVos (10).

Characterization. Shell minute, H 0.8 mm, W 0.7 mm, trochiform, turreted; DN 0.11 mm; P/T boundary thin varix at 1.1 whorls; second varix at 1.6 whorls; T whorls shouldered, with axial lirae and minute pits; body whorl with rounded shoulder and low spiral rib; aperture subquadrate; very thin nacre observed at the damaged outer lip of one specimen; umbilicus narrow, with spiral rib inside.

Remarks. This seguenzioid skeneimorph species is also provisionally placed in Thelyssina, based on the presence of minute pits, a well defined angular shoulder, a basal spiral rib, an umbilical spiral rib and a small protoconch with anastomosing sculpture and a shape similar to the protoconch of the type species for the genus. However, this assignment is open to further scrutiny as Thelyssina ? spec. 2 is relatively tall and lacks dendritic sculpture.