Octochaetona Michaelsen, 1922

• Male pores paired on xviii in seminal grooves, prostatic pores paired at the ends of seminal grooves on xvii and xix.
• Lumbricine.
• Oesophagus with a single gizzard in vi or in a space between septa iv/v and vii/viii or viii/ix or ix/x.
• One pair of discrete extramural asymmetrical calciferous glands opening into gut close to the attachment of septum v/vi.
• Prostate paired in xvii and xix extending posteriorly to a few segments.
• Supra-intestinal gland absent.
• Typhlosole lamelliform, bifid ventrally.
• Megameronephridia absent.
• Penial setae present.
• Spermathecae paired in viii ad ix and diverticulate.
• Fifteen species recorded in India viz.,