Compared with its similar species Pseudobuliminus (Pseudobuliminus) piligerus (M*illendorff, 1899), the new species owns a larger value of H/B and a relatively smaller dart sack apparatus.

• 。 新种贝壳与Pseudobuliminus (Pseudobuliminus) piligerus (M llendorff,1899)相近 ,但前者螺壳细长 ,矢囊相对小 ,受精囊管细长。