Genus Monticellina Laubier, 1961

Type Species: Monticellina heterochaeta Laubier, 1961

Diagnosis (after Dean & Blake 2009). Prostomium long or short, sometimes pointed; peristomium elongated to short, with achaetigerous annulations; dorsal tentacles usually arising anterior to chaetiger 1; middle body segments sometimes beadlike; posterior segments usually expanded or enlarged. Chaetae include capillaries with distinct sawtooth (denticulate) edge, often basally expanded.