Sinistroseila W.R.B. Oliver, 1915

Original reference. Oliver 1915: 523.

Type species. Triforis incisus Pease, 1861, by original designation.

Remarks. Gender: feminine. A junior synonym of Viriola Jousseaume, 1884, this genus is based on misidentified specimens of a species belonging to Viriola (Marshall 1983) .