Genus Inopinatamenia gen. n.

Type species. Inopinatamenia calamitosa sp. n.

Derivatio nominis. From Latin inopinatus-a-um: unexpected. In allusion to the non-expected finding of a new genus.

Diagnosis. Sclerites of a single type: lanceolate leaf-shaped scales, without solid acicular sclerites. Common atrio-buccal cavity. Monoserial radula with six denticles per tooth. Type A ventrolateral foregut glands. Without dorsoterminal sensory organ. Probably with respiratory folds.