Tonoscolex Gates, 1933

• Male pores in xvii and in seminal grooves that extend into another segment.
• Female pores anteromedian to a in xiii.
• Lumbricine or Perichaetine.
• Quadrithecal, pores at vi/vii-vii/viii.
• Gizzzard in vi.
• Discrete calciferous glands stalked in viii-xii, ix-xii, x-xii.
• Testes ix-x.
• Ovaries in xii.
• Intestinal caecae and supra-intestinal glands absent.
• Typhlosole lamelliform.
• Meroic, V-shaped, exoic micronephridia on parietes from iv and especially numerous in clitella segments.
• Dorsal pores absent.
• Pigment lacking.
• Prostate strap-shaped extending through several segments, duct short, soft and joined entally by the sperm duct.
• Spermathecae each with a diverticulum shorter than the main axis.
• Eight species recorded in India viz.,