Longidorella

Also bearing a long odontostyle, this genus differs from Oriverutus in the morphology of lip region (versus lips not lobe-like and perioral area scarcely differentiated), and larger (versus usually three times the lip region width long or more, but occasionally shorter) and more slender (flexible) odontostyle. Besides, Longidorella species are, in general, smaller and stouter; and their tail is conical and regularly curved ventrad, more rarely straight ventrally or conoid to rounded.