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 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.,

Sl No Species Type locality Nature
1. albida Horsleykonda, Chittoor dist., AP, India Endemic
2. barkudensis Calcutta, WB, India Endemic
3. barnesi Nellore, AP, India Endemic
4. beatrix Horsleykonda, Chittoor dist., AP, India Endemic
5. compta Gingi, S Arcot dist., TN, India Endemic
6. excavata Palia, MP, India Endemic
7. maindroni Nellore, AP, India Endemic
8. paliensis Madras, TN, India Endemic
9. parva Hyderabad, AP, India Endemic
10. pattoni Kalyan, Maharashtra, India Endemic
11. phillotti Madras, TN, India Endemic
12. prashadi Sur lake, Puri dist., India Endemic
13. serrata Madras, TN, India Endemic
14. surensis Horsleykonda, Chittoor dist., AP, India Endemic
15. thurstoni Calcutta, WB, India Endemic