Reference

Charles W. Heckman (1998): Case 3011. Strombidium gyrans Stokes, 1887 (currently Strobilidium gyrans) and Strobilidium caudatum Kahl, 1932 (Ciliophora, Oligotrichida): proposed conervation of the specific name – Bulletin of the Zoological Nomenclature – 55: 6 - 8.