NARMS Taxon list
Circulus carinulatus Locard, 1889 accepted as Circulus striatus (R. A. Philippi, 1836)
Circulus costulatus Locard, 1889 accepted as Circulus striatus (R. A. Philippi, 1836)
Circulus dalli K. J. Bush, 1897 accepted as Cyclostremiscus dalli (K. J. Bush, 1897)
Circulus formosissimus Brugnone, 1873 accepted as Skeneoides formosissima (Brugnone, 1873)
Circulus jeffreysii Monterosato, 1872 accepted as Skeneoides formosissima (Brugnone, 1873)
Circulus liratus (A. E. Verrill, 1882)
Circulus novemcarinatus (Melvill, 1906)
Circulus octoliratus (P. P. Carpenter, 1856)
Circulus sarsi (K. J. Bush, 1897) accepted as Orbitestella sarsi (K. J. Bush, 1897)
Circulus striatus (R. A. Philippi, 1836)
Circulus striatus bicarinatus Altimira, 1977 accepted as Circulus striatus (R. A. Philippi, 1836)
Circulus supranitidus (S. V. Wood, 1848)
Circulus translucens (Dall, 1927) accepted as Xyloskenea translucens (Dall, 1927)
Circulus tricarinatus (S. V. Wood, 1848) accepted as Circulus striatus (R. A. Philippi, 1836)
Vitrinella carinata (d'Orbigny, 1842) (uncertain > nomen dubium )
Vitrinella diaphana (d'Orbigny, 1842) accepted as Vitrinella pusilla (L. Pfeiffer, 1840)
Vitrinella pusilla (L. Pfeiffer, 1840)
Vitrinella tryoni K. J. Bush, 1897